Idaho National Laboratory   Actinide Separations and Radiochemistry Department   Overseas Research Fellowship, Japan Society for the Promotion of Science

2017.4 - 2018.5

Japan Atomic Energy Agency (SPring-8 site)   Actinide Coordination Chemistry Research Group   Research Fellowship for Young Scientist(PD), Japan Society for the Promotion of Science

2014.4 - 2017.3

Department of Nuclear Engineering, Tokyo Institute of Technology

2009.4 - 2014.3

Department of Mechanical Engineering and Science, Tokyo Institute of Technology

2005.4 - 2009.3

Kanazawa University High School

2001.4 - 2004.3

Organization for Economic Co-operation and Development/Nuclear Energy Agency (OECD/NEA)   WPFC Expert Group on Advanced Fuel Cycle Scenarios (EGAFCS) Committee member  

2023   

Organization for Economic Co-operation and Development/Nuclear Energy Agency (OECD/NEA)   WPFC Expert Group on Fuel Recycling and Waste Technology (EGFRW) Member  

2023   

Solvent Extraction Research and Development, Japan   Editorial Committee  

2021.12   

Japan Atomic Energy Agency   Review Committee of the JRR-3 (Nuclear Science)  

2021.12   

Atomic Energy Society of Japan   Editor of the Journal of Nuclear Science and Technology, Atomic Energy Society of Japan  

2020.7   

Atomic Energy Society of Japan   Research Committee on Radioactive Waste Treatment, Disposal, Separation, and Conversion Technologies  

2019.6 - 2022.3   

Atomic Energy Society of Japan   Member of the Th Nuclear System Research Committee  

2019.4 - 2020.3   

Evaluation of Aluminum Hexacyanoferrate utilization for PGM and Mo removal from simulated high-level-raffinates in reprocessing for repository area minimization Reviewed

Masahiko Nakase, Ria Mishima, Takumi Abe, Tomohiro Okamura, Hidekazu Asano

Annals of Nuclear Energy   224   111569 - 111569   2025.12

Hydrophobic natural deep eutectic solvents for lanthanides extraction Reviewed

Marc Castelló Escurie, Maria Boltoeva, Dominique Tréboue, Masahiko Nakase

Chemistry Letters   54 ( 12 )   2025.12

The Disposal Issue of Radioactive Waste Generated by Nuclear-Powered Ships

Tomofumi Sakuragi, Masahiko Nakase, Hidekazu Asano

Conference paper of annual meeteng of the Japan naval archtectures and ocean engneers   ( 41 )   2025.11

Investigation of the Nuclear Back-End Requirements for the Widespread Deployment of Nuclear-Powered Ships

Masahiko Nakase, Tomofumi Sakuragi, Hidekazu Asano

Conference paper of annual meeteng of the Japan naval archtectures and ocean engneers   ( 41 )   2025.11

Can Nuclear-Powered Ships Be Implemented in Japan? - Exploring Concepts and Challenges

Hoshi Tagawa, Taiga Mitsuyuki, Masahiko Nakase, Tomofumi Sakuragi, Masaki Adachi, Akiko Konnai, Hiroshi Nakatani

Conference paper of annual meeteng of the Japan naval archtectures and ocean engneers   ( 41 )   2025.11

History and Future of Nuclear Energy Utilization in the Maritime Industry

Taiga Mitsuyuki, Tomohiro Okamura, Masahiko Nakase, Shinnosuke Wanaka

Conference paper of annual meeteng of the Japan naval archtectures and ocean engneers   ( 41 )   2025.11

A Novel Computational Framework for Extraction Chromatography Calculation: ANSYS Fluent Coupled with Python Reviewed

Masahiko NAKASE, Sou WATANABE, Yuichi SANO, Masayuki TAKEUCHI

Progress in Nuclear Science and Technology   8   209 - 215   2025.9

Impact of Fast Reactor Fuel Type on Backend Processes in the Nuclear Fuel Cycle Reviewed

Kenji Takeshita, Tomohiro Okamura, Masahiko Nakase, Takumi Abe, Kenji Nishihara

Progress in Nuclear Science and Technology   8   52 - 57   2025.9

Surface Dose Evaluation of a Reactor Pressure Vessel Based on a Representative Nuclide Selection Methodology Reviewed

Fauzia Hanum Ikhwan, Kenji Konashi, Chikage Abe, Putra Andri Rahma, Masahiko Nakase, Tatsuya Suzuki

Progress in Nuclear Science and Technology   8   222 - 227   2025.9

Analysis of the Necessity and Usefulness of MA Temporary Storage Technology for the Sustainable Nuclear Fuel Cycle Reviewed

Tomohiro Okamura, Masahiko Nakase, Kenji Takeshita, Takashi Shimada, Yuki Konishi, Keisuke Nishimura, Hitomi Ishida, Tomoo Yamamura

Progress in Nuclear Science and Technology   8   58 - 63   2025.9

The systematic thermal conductive calculation for concentrated emplacement disposal of high-level radioactive wastes Reviewed

Masahiko Nakase, Miki Harigai, Tomofumi Sakuragi, Hidekazu Asano

Journal of Nuclear Science and Technology   63 ( 3 )   267 - 276   2025.7

Scenario analysis of future nuclear energy use in Japan: (1) Methodology of Nuclear fuel cycle simulator: NMB4.0 Reviewed

Takumi Abe, Akito Oizumi, Kenji Nishihara, Masahiko Nakase, Hidekazu Asano, Kenji Takeshita

Progress in Nuclear Science and Technology   7   299 - 304   2025.3

Study on load following of a molten salt fast reactor Reviewed

Hiroyasu Mochizuki, Masahiko Nakase

Progress in Nuclear Science and Technology   7 ( 2025 )   27 - 33   2025.3

Valence separation of Fe and removal of Sn2+ by solvent extraction as a potential method to determine Fe2+ in glass containing Sn2+ Reviewed

Naoki Kanno, Masahiko Nakase, Yoshitaka Saijo, Daiju Matsumura, Takuya Tsuji, Kenji Takeshita, Takehiko Tsukahara

Progress in Nuclear Science and Technology   7 ( 2025 )   154 - 160   2025.3

Development of Integrated Actinide Chemistry Application, AACE, for Acceleration of Actinide Chemistry Experiments Reviewed

Masahiko Nakase, Takahiro Nishihara, Fauzia Hanum Ikhwan, Tomohiro Okamura, Kota Matsui

EPJ Web of Conferences   317 ( 01007 )   01007 - 01007   2025.1

Impact of MA Temporary Storage Process on the Reduction of Final Disposal Burden in the Advanced Nuclear Fuel Cycle Reviewed

Tomohiro Okamura, Masahiko Nasase, Kenji Takeshita, Takashi Shimada, Yuki Konishi, Keisuke Nishimura, Hitomi Ishida, Tomoo Yamamura

EPJ Web of Conferences   317 ( 01009 )   01009 - 01009   2025.1

Using X-ray absorption near edge structure to evaluate adsorption properties of rare earths and nitrogen by difference of their interactions Reviewed

Kazuki Minowa, Sou Watanabe, Masahiko Nakase, Youko Takahatake, Yasunori Miyazaki, Yasutoshi Ban, Haruaki Matsuura

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms   556   165496 - 165496   2024.8

Determination of Fe2+ in Tin Oxide-containing Glass through Valence-Selective Solvent Extraction and Colorimetric Analysis following Glass Decomposition Reviewed

Naoki Kanno, Makiko Murata, Yoshitaka Saijo, Masahiko Nakase

Chemistry Letters   53 ( 1 )   upad014   2023.11

Nuclear Fuel Cycle Research in the Digital Age (2) Verification of the Effectiveness of High-Level Radioactive Waste Reduction by Managing Nuclear Material Data Using NEUChain Reviewed

Tomohiro Okamura, Takahiro Nishihara, Masahiko Nakase

2023.11

Nuclear Fuel Cycle Research in the Digital Age (1) NEUChain: Development of the Radioactive Material Data Management System Using Distributed Ledger Technology Reviewed

Takahiro Nishihara, Tomohiro Okamura, Masahiko Nakase

2023.11

Preliminary studies of XANES and DFT calculation of Ru extraction by Imino-diacetamide and related compounds Reviewed

Yuji Sasaki, Masahiko Nakase, Masashi Kaneko, Tohru Kobayashi, Kenji Takeshita, Masahiko Matsumiya

Analytical Sciences (Accepted)   2023.11

Degradation of nuclear fuel debris analogue by siderophore-releasing microorganism Reviewed

Toshihiko Ohnuki, Masahiko Nakase, Jiang Liu, Yuma Dotsuta, Yukihiko Satou, Toru Kitagaki, Naofumi Kozai

Journal of Nuclear Science and Technology   61 ( 3 )   384 - 396   2023.7

Further Immobilization Of Stabilized Alps Sediment Phosphate Waste With Powder Metallurgy Hot Isostatic Pressing For Fukushima Decommissioning Reviewed

Tomofumi Sakuragi, Ryosuke Maki, Ryo Hamada, Miki Harigai, Hidekazu Asano, Masahiko Nakase, Hidetoshi Kikunaga, Shinta Watanabe, Toru Kobayashi

Proceedings of the 30th International Conference on Nuclear Engineering (ICONE30)   1078 - 1078   2023.5

Study Of Power Control Of A Molten-Salt Fast Reactor Using Void Fraction Change Reviewed

Hiroyasu Mochizuki, Masahiko Nakase

Proceedings of the 30th International Conference on Nuclear Engineering (ICONE30)   1101 - 1101   2023.5

Cesium immobilization from aqueous solution by struvite synthesis Reviewed

Takuhi Hara, Masahiko Nakase, Shinta Watanabe, Kenji Takeshita

Journal of Nuclear Science and Technology   60 ( 11 )   1333 - 1344   2023.3

Scenario Study of Future Nuclear Energy Use in Japan:(2) Case Analysis of Japan’s Nuclear Energy Use in the Second Half of the 21st Century from the back-end Perspective by using NMB4.0 Reviewed

Tomohiro Okamura, Akito Oizumi, Kenji Nishihara, Masahiko Nakase, Hidekazu Asano, Kenji Takeshita

Proceedings of 2022 International Youth Nuclear Congress (IYNC2022)   2022.11

Release of New Nuclear Fuel Cycle Simulator : NMB4.0 Reviewed

Takumi Abe, Kenji Nishihara, Tomohiro Okamura, Masahiko Nakase, Kenji Takeshita

Proceedings of 2022 International Youth Nuclear Congress (IYNC2022)   2022.11

Cost-reduced depletion calculation including short half-life nuclides for nuclear fuel cycle simulation Reviewed

Tomohiro Okamura, Ryota Katano, Akito Oizumi, Kenji Nishihara, Masahiko Nakase, Hidekazu Asano, Kenji Takeshita

Journal of Nuclear Science and Technology (Published online)   60 ( 6 )   632 - 641   2022.10

Development of Stable Solidification Process of Phosphates Waste Form for ALPS Slurry Wastes Reviewed

Shun Kanagawa, Takatoshi Hijikata, Masahiko Nakase, Kazuo Utsumi, Kenji Takeshita

Proceedings of International Topical Workshop on Fukushima Decommissioning Research 2022 (FDR2022)   2022.10

Impact of MOX fuel use in light-water reactors: long-term radiological consequences of disposal of high-level waste in a geological repository Reviewed

Eriko Minari, Satsuki Kabasawa, Morihiro Mihara, Hitoshi Makino, Hidekazu Asano, Masahiko Nakase, Kenji Takeshita

Journal of Nuclear Science and Technology (Published online)   60 ( 7 )   793 - 803   2022.10

Composite waste form for immobilization of radionuclides from Fukushima decommissioning by powder metallurgy hot isostatic pressing Reviewed

Tomofumi Sakuragi, Ryo Hamada, Hidekazu Asano, Masahiko Nakase, Ryosuke Maki, Hidetoshi Kikunaga, Miki Harigai, Shinta Watanabe, Toru Kobayashi

Proceedings of International Topical Workshop on Fukushima Decommissioning Research 2022 (FDR2022)   2022.10

Sr(ii) extraction by crown ether in HFC: entropy driven mechanism through H₂PFTOUD Reviewed

Masahiko Nakase

RSC Advances   12 ( 41 )   26922 - 26933   2022.9

Multi-stage extraction and separation of Ln and An using TODGA and DTBA or DTPA accompanying pH adjustment with lactic acid and ethylenediamine Reviewed

Yuji Sasaki, Masashi Kaneko, Yasutoshi Ban, Masahiko Matsumiya, Masahiko Nakase, Kenji Takeshita

Separation Science and Technology   57 ( 16 )   2543 - 2553   2022.5

Impact of Utilization of MOX Fuel in LWRs on the Long-term Safety for Geological Disposal of HLWs Reviewed

Eriko Minari, Satsuki Kabasawa, Morihiro Mihara, Hitoshi Makino, Hidekazu Asano, Masahiko Nakase, Kenji Takeshita

Proceedings of Waste Management symposia 2022 (WM2022 Conference)   2022.3

Recovery and immobilization of cesium from aqueous solution after hydrothermal treatment using functional porous glass Reviewed

Masahiko Nakase

Journal of Nuclear Science and Technology   59 ( 10 )   1304 - 1313   2022.2

Optimal waste loading in high-level nuclear waste glass from high-burnup spent fuel for waste volume and geological disposal footprint reduction Reviewed

Masahiko Nakase

MRS Advances   7   150 - 154   2022.2

Optimization of waste management for mixed oxide fuel in light-water reactors: Evaluation of the effectiveness of blending spent uo₂ and mixed oxide fuels in reprocessing Reviewed

Masahiko Nakase

Annals of Nuclear Energy   169 ( 5 April 2020, 121677 )   108926 - 108926   2022

Hydrofluorocarbon Diluent for CMPO Without Third Phase Formation: Extraction of Uranium(VI) and Lanthanide(III) Ions Reviewed

Masahiko Nakase

Separation Science and Technology   57 ( 7 )   1097 - 1110   2022

Mutual Separation of Ln and an Using TODGA and DTBA with High Organic Acid Concentrations Reviewed

Masahiko Nakase

Solvent Extraction and Ion Exchange   40 ( 6 )   620 - 640   2022

NMB4.0: development of integrated nuclear fuel cycle simulator from the front to back-end Reviewed

Masahiko Nakase

EPJ Nuclear Sciences & Technologies   7 ( 19 )   13 - 13   2021.10

Prediction of Stability Constants for Novel Chelates Design in Minor Actinides Partitioning over Lanthanides Using Density Functional Theory Calculation Reviewed

Masahiko Nakase

Chemistry Letters   50 ( 10 )   1765 - 1769   2021.7

Complexation Studies of Eu(III) by a Novel Soft N and Hard O Donor Combined Ligand Including N,N,N',N'-Tetrakis(2-pyridylmethyl)-1,3-diaminopropane-2-amide Structure: UV-vis Titration, X-ray Crystallography, EXAFS Spectroscopy Analysis Reviewed

Hao Wu, Masahiko Nakase, Yusuke Inaba, Miki Harigai, Tohru Kobayashi, Tsuyoshi Yaita, Kenji Takeshita, Seong-Yun Kim

Solvent Extraction Research and Development, Japan   28 ( 1 )   69 - 77   2021.6

Trichotomic separation of light and heavy lanthanides and Am by batchwise multi-stage extractions using TODGA Reviewed

Masahiko Nakase

Journal of Radioanalytical and Nuclear Chemistry   2021

Evaluation of the technical options of radioactive waste management for utilization of MOX fuel: Thermal impact of Minor Actinide separation with geological disposal of high-level waste Reviewed

Eriko Minari, Tomohiro Okamura, Masahiko Nakase, Hidekazu Asano, Kenji Takeshita

Journal of Nuclear Science and Technology   58 ( 10 )   1123 - 1133   2021

Mechanistic study on the removal of Cs from contaminated soil by rapid ion exchange in subcritical water Reviewed

Masahiko Nakase

Journal of Nuclear Science and Technology   58 ( 4 )   399 - 404   2021

Density functional modeling of selectivity with diethylenetriaminepentaacetic acid and its bisamide chelates Reviewed

Masashi Kaneko, Yuji Sasaki, Masahiko Matsumiya, Masahiko Nakase, Kenji Takeshita

Journal of Nuclear Science and Technology   58 ( 5 )   515 - 526   2020.10

Hydrothermal-treatment desorption of cesium from clay minerals: The roles of organic acids and implications for soil decontamination Reviewed

Masahiko Nakase

Water Research   177 ( 15 )   115804   2020.4

Simultaneous separation of Am and Cm from Nd and Sm by multi-step extraction using the TODGA-DTPA-BA-HNO3 system Reviewed

Masahiko Nakase

Radiochimica Acta   108 ( 9 )   689 - 699   2020.3

Interrelationships and the effects of introducing separation technologies in the nuclear fuel cycle for enhanced radioactive waste management

Tomohiro Okamura, Eriko Minari, Masahiko Nakase, Hidekazu Asano, Kenji Takeshita

GLOBAL 2019 - International Nuclear Fuel Cycle Conference and TOP FUEL 2019 - Light Water Reactor Fuel Performance Conference   622 - 628   2020

Behavior of lanthanides and actinides for their mutual separation using extractant and masking agent

Yuji Sasaki, Keisuke Morita, Masahiko Matsumiya, Masahiko Nakase

GLOBAL 2019 - International Nuclear Fuel Cycle Conference and TOP FUEL 2019 - Light Water Reactor Fuel Performance Conference   108 - 112   2020

Extraction separation of minor actinides and lanthanides by 1,10-phenanthroline-2,9-diamide with phenyl group in nitric acid systems

Nao Tsutsui, Masahiko Nakase, Sayumi Ito, Yasutoshi Ban, Tatsuro Matsumura, Kenji Takeshita

GLOBAL 2019 - International Nuclear Fuel Cycle Conference and TOP FUEL 2019 - Light Water Reactor Fuel Performance Conference   113 - 116   2020

Effects of diluents on the separation of minor actinides from lanthanides with tetradodecyl-1,10-phenanthroline-2,9-diamide from nitric acid medium

Nao Tsutsui, Yasutoshi Ban, Hideya Suzuki, Masahiko Nakase, Sayumi Ito, Yusuke Inaba, Tatsuro Matsumura, Kenji Takeshita

Analytical Sciences   36 ( 2 )   241 - 246   2020

Reduction of the Waste Occupied Area by Nuclide Separation and Horizontal Emplacement of Waste Package Reviewed

T.Okamura, E.Minari, M.Nakase, H.Asano, K.Takeshita

20422   2020

Impact of Combination of Partitioning and Horizontal Emplacement of Waste Package on Footprint of Geological Repository Reviewed

Tomohiro Okamura, Eriko Minari, Masahiko Nakase, Kenji Takeshita, Hidekazu Asano

20589   2020

Extraction and separation between light and heavy lanthanides by N,N,N',N'-tetraoctyl-diglycolamide from organic acid Reviewed

Y.Sasaki, M.Matsumiya, M.Nakase, K.Takeshita

Chem Lett   49 ( 10 )   1216 - 1219   2020

Sorption properties of aluminum hexacyanoferrate for platinum group elements Reviewed

Ria Mishima, Yusuke Inaba, Sotaro Tachioka, Miki Harigai, Shinta Watanabe, Jun Onoe, Masahiko Nakase, Kenji Takeshita

CHEM LETT   49 ( 1 )   83 - 86   2019.11

Adsorption study of U and Th by N,O-hybrid donor ligand-immobilized hydrogels Reviewed

M. Nakase, T. Yamamura, K. Shirasaki, M. Nagai, K. Takeshita

Separation Science and Technology (Philadelphia)   54 ( 12 )   1952 - 1959   2019.8

Study on nuclear fuel cycle with less-impact radioactive waste management -Impact of Cs and Sr separation on reducing the geological disposal area Reviewed

T.Okamura, E.Minari, M.Nakase, H.Asano, K.Takeshita

Bull. Lab. Adv. Nucl. Energy   ( 4 )   24   2019

Effective use of 234U in Throium fuel cycle Reviewed

Masahiko Nakase, Eriko Minari, Tomohiro Okamura, Hiroshi Sagara, Masaki Saito, Kenji Takeshita

Paper of International Conference on the Management of Spent Fuel from Nuclear Power Reactors: Learning from the Past, IAEA, Vienna, Austria   2019

Enviromental load reduction of geological repository by minor actinide separation: Utilization of MOX fuel in future fuel cycle system Reviewed

Eriko Minari, Tomohiro Okamura, Masahiko Nakase, Hidekazu Asano, Kenji Takeshita

Paper of International Conference on the Management of Spent Fuel from Nuclear Power Reactors: Learning from the Past, IAEA, Vienna, Austria   2019

Reduction of geological disposal area by introducing partitioning technologies under conditions of high burn-up operation and high content vitrified waste Reviewed

Tomohiro Okamura, Eriko Minari, Masahiko Nakase, Hidekazu Asano, Kenji Takeshita

Paper of International Conference on the Management of Spent Fuel from Nuclear Power Reactors: Learning from the Past, IAEA, Vienna, Austria   2019

Cross-sectional study on nuclear energy system for less-impacted radioactive waste management - Effect of the various spent nuclear fuel properties and reprocessing conditions on the geological disposal, Reviewed

Hidekazu Asano, Tomohiro Okamura, Eriko Minari, Masahiko Nakase, Kenji Takeshita

Paper of International Conference on the Management of Spent Fuel from Nuclear Power Reactors: Learning from the Past, IAEA, Vienna, Austria   2019

Complexation properties and structural character of lanthanides complexes of O,N-hetero donor ligand BIZA Reviewed

Masahiko Nakase

Separation Science and Technology   54 ( 13 )   2077 - 2083   2019

Separation activities of Takeshita-lab in FY2018

M.Nakase, W.Hao, S.Itoh, N.Tsutsui, T.Matsumura, K.Takeshita

Bull. Lab. Adv. Nucl. Energy   ( 4 )   23   2019

Extended X-ray absorption fine structure study on gel/liquid extraction of f-block elements Reviewed

Masahiko Nakase, Toru Kobayashi, Hideaki Shiwaku, Takuya Kawamura, Kenji Takeshita, Tsuyoshi Yaita

Progress in Nuclear Science and Technology   5   56 - 60   2018.12

Relationship Between Structure and Coordination Strength of N and N,O-Hybrid Donor Ligands with Trivalent Lanthanides Reviewed

Masahiko Nakase, Tohru Kobayashi, Hideaki Shiwaku, Shinichi Suzuki, Travis S. Grimes, Bruce J. Mincher, Tsuyoshi Yaita

Solvent Extraction and Ion Exchange   36 ( 7 )   633 - 646   2018.11

Continuous separation of molybdenum and zirconium from simulated high-level liquid waste with a Taylor-Couette contactor Reviewed

Masahiko Nakase

Journal of Nuclear Science and Technology   55 ( 11 )   1317 - 1323   2018.6

Modified flow geometry for higher extraction performance with a liquid-liquid centrifugal contactor with Taylor vortices Reviewed

Masahiko Nakase, Yuto Matsuzawa, Kenji Takeshita

Journal of Nuclear Science and Technology   55 ( 8 )   829 - 837   2018.2

Cross-sectional study on nuclear fuel cycle for less-impacted radioactive waste management and disposal

Tomohiro Okamura, Masahiko Nakase, Kota Kawai, Eriko Minari, Hidekazu Asano, Kenji Takeshita

Bull. Lab. Adv. Nucl. Energy   3   25 - 25   2018

Effect of Cs and Sr separation on occupied area reduction in current nuclear energy system and its evaluation by CAERA index Reviewed

Tomohiro Okamura, Kota Kawai, Eriko Minari, Masahiko Nakase, Hidekazu Asano, Kenji Takeshita

Seper Sci Technol   54 ( 12 )   1970 - 1976   2018

Research activity of metal ion separation in Takeshita Laboratory from solvent extraction, adsorption to contactor work

Masahiko Nakase, Yusuke Inaba, Miki Harigai, Kazuo Utsumi, Kenji Takeshita

Bull. Lab. Adv. Nucl. Energy   3   19 - 22   2018

Study on remediation of contaminated soil generated by Fukushima Nuclear Power Plant Accident

Yusuke Inaba, Xiangbiao Yin, Miki Harigai, Kazuo Utsumi, Masahiko Nakase, Kenji Takeshita

Bull. Lab. Adv. Nucl. Energy   3   23 - 24   2018

Unique Separation Based on Extraction Kinetics Using a Liquid-liquid Countercurrent Centrifugal Contactor with Taylor Vortices Reviewed

Masahiko Nakase, Yuto Matsuzawa, Kenji Takeshita

Proc ISEC2017   187 - 193   2017.11

Thermodynamic, Spectroscopic, and Computational Studies of f-Element Complexation by N-Hydroxyethyl-diethylenetriamine-N,N ',N '',N ''-tetraacetic Acid

Travis S. Grimes, Colt R. Heathman, Santa Jansone-Popova, Vyacheslav S. Bryantsev, Sriram Goverapet Srinivasan, Masahiko Nakase, Peter R. Zalupski

INORGANIC CHEMISTRY   56 ( 3 )   1722 - 1733   2017.2

Structure and Complexation Studies on 2,2'-Bipyridyl and Trivalent Lanthanides Reviewed

M. Nakase, K. Takeshita, T. Kobayashi, H. Shiwaku, T. Yaita

SEPARATION SCIENCE AND TECHNOLOGY   50 ( 18 )   2832 - 2835   2015.12

Continuous mutual separation of lanthanides by a liquid-liquid countercurrent centrifugal extractor with Taylor vortices Reviewed

Masahiko Nakase, Mikiya Tanaka, Kenji Takeshita

FOURTH INTERNATIONAL SYMPOSIUM ON INNOVATIVE NUCLEAR ENERGY SYSTEMS (INES-4)   71   106 - 111   2015

Synergistic Extraction of Lanthanides in a Liquid-Liquid Countercurrent Centrifugal Extractor Reviewed

M. Nakase, Y. Sasaki, K. Takeshita

SEPARATION SCIENCE AND TECHNOLOGY   49 ( 16 )   2478 - 2484   2014.11

Study on liquid-liquid countercurrent centrifugal extraction system with Taylor vortices Reviewed

Masahiko Nakase

Tokyo Institute of Technology   2014.3

Multi-staging for extraction of cesium from nitric acid by a single liquid-liquid countercurrent centrifugal extractor with Taylor vortices Reviewed

Masahiko Nakase, Hiroshi Kinuhata, Kenji Takeshita

JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY   50 ( 11 )   1089 - 1098   2013.11

High-performance extraction operation using emulsion flow protected by surfactants in a liquid-liquid countercurrent centrifugal extractor Reviewed

Masahiko Nakase, Hitoshi Rokkaku, Kenji Takeshita

Journal of Nuclear Science and Technology   50 ( 7 )   723 - 730   2013.7

Relation between oil-water flow and extraction performance in liquid-liquid countercurrent centrifugal extractors with Taylor vortices Reviewed

Masahiko Nakase, Ryoji Makabe, Kenji Takeshita

JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY   50 ( 3 )   287 - 295   2013.3

Continuous back extraction operation by a single liquid-liquid centrifugal extractor Reviewed

Masahiko Nakase, KENJI TAKESHITA

Proceedings of GLOBAL2013 (CD-ROM)   1017 - 1023   2013

Oil-warer dispersion analysis of verious flow geometry and their dynamic visualization

2013

Numerical and Experimental Study on Oil-water Dispersion in New Countercurrent Centrifugal Extractor Reviewed

Masahiko Nakase, Kenji Takeshita

ATALANTE 2012 INTERNATIONAL CONFERENCE ON NUCLEAR CHEMISTRY FOR SUSTAINABLE FUEL CYCLES   7   288 - 294   2012

Scale up effect of liquid-liquid countercurrent centrifugal extractor using Taylor-Couette flow

Nakase Masahiko, Takeshita kenji

Proceedings of Annual / Fall Meetings of Atomic Energy Society of Japan   2012   467 - 467   2012

Scale-up effect of oil-water countercurrent centrifugal extractor on extraction performance

Masahiko Nakase, Kenji Takeshita

Transactions of the American Nuclear Society   107   277 - 278   2012

Methane conversion into synthetic fuels using microplasma reaction technology Reviewed

Anil Agiral, Tomohiro Nozaki, Masahiko Nakase, Shuhei Yuzawa, Valentin Goujard, Ken Okazaki, J. G. E. (Han) Gardeniers

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   242   2011.8

Effective Use of U-234 in Th Fuel Cycle Reviewed

Masahiko Nakase

Tokyo Institute of Technology   2011.3

Gas-to-liquids process using multi-phase flow, non-thermal plasma microreactor Reviewed

Anil Agiral, Tomohiro Nozaki, Masahiko Nakase, Shuhei Yuzawa, Ken Okazaki, J. G. E. (Han) Gardeniers

CHEMICAL ENGINEERING JOURNAL   167 ( 2-3 )   560 - 566   2011.3

Direct synthesis of liquid oxygenates in a nonequilibrium plasma microreactor Reviewed

Anil Agiral, Masahiko Nakase, Ken Okazaki, Tomohiro Nozaki, Han Gardeniers

ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY   238   2009.8

Partial Oxidation of Methane to Liquid Oxygenates Using Atmospheric Pressure Non-equilibrium Plasma Microreactor Reviewed

M. Nakase, Anil Agiral, T. Nozaki, J. G. E, H, Gardeniers, K. Okazaki

Poster   2009.7

【学士論文】大気圧非平衡プラズマによる天然ガス直接液体燃料化プロセスの開発 Reviewed

中瀬正彦

2009.3

CHEMICALLY AMPLIFIED RESIST USING SELF-SOLUBILITY ACCELERATION EFFECT

Masahiko Nakase

Journal of the Electrochemical Society   1994

Introduction of Nakase lab and research topics, Seminar at University of Sheffield

2024.12

Recent research : Using X-ray Absorption Near Edge Structure to Evaluate Adsorption Properties of Rare Earths and Nitrogen by Difference of Their Interactions

Kazuki Minowa, Sou Watanabe, Masahiko Nakase, Youko Takahatake, Yasutoshi Ban, Haruaki Matsuura

PHOTON FACTORY NEWS（PFNews)   42 ( 3 )   15 - 15   2024.11

Project 5-3 Synthesis of novel phthalocyanine derivatives and effect of substituent on recognition of light actinide and chemical property-4

Masahiko Nakase, Fauzia Hanum Ikhwan, Tomoo Yamamura

KURNS Progress Report 2023   2023   36 - 36   2024.6

Project 5 Chemical and electronic properties of Actinide compounds and their applications

Tomoo Yamamura, Yoshinori Haga, Minori Abe, Masahiko Nakase, Kenji Shirasaki, Shinsaku Kanbe, Naoto Ishikawa, Tatsuya Suzuki, Masanobu Nogami, Tohru Kobayashi

KURNS Progress Report 2023   2023   33 - 33   2024.6

Nuclear Energy Systems Research and Development Project (Exploration of fluorine super solvent for MA extraction)

Masahiko Nakase, Miki Harigai, Shinta Watanabe, Takashi Kajitani, Chihiro Tabata, Toru Kobayashi, Takashi Shimada, Yasuhiro Ishida, Koichi Kakinoki

2024.4

Investigation on Fuel Cycle based on Actinide Management Towards Sustainable Use of Nuclear Energy

Tomoo Yamamura, Mari Toyama, Masahiko Nakase, Kenji Takeshita, Yasutoshi Ban, Yasuhiro Tsubata, Takehiko Sato, Atsushi Sakamoto, Masanori Shikata, Takashi Shimada, Hitomi Ishida, Ryo Takahashi, Yuichi Saito, Kazuhisa Yamashina, Yuki Fukuda, Taisuke Tsukamoto, Hironori Noguchi

MEXT Innovative Nuclear Research and Development Program (Investigation on Fuel Cycle based on Actinide Management Towards Sustainable Use of Nuclear Energy)   2024.3

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Masahiko Nakase

2023 ( 5 )   25 - 25   2024.2

Development of Nuclear Fuel Cycle Simulator, NMB 4.0, for the Future Nuclear Technology

Kenji Nishihara, Tomohiro Okamura, Masahiko Nakase, Hidekazu Asano, Kenji Takeshita, Takumi Abe

Bulletin of the Laboratory for Advanced Nuclear Energy   2023 ( 2 )   36 - 36   2023.12

Hybrid Waste Solidification by Spark Plasma Sintering and Hot Isostatic Pressing for Disposal of Wastes Generated in Fukushima Daiichi Nuclear Power Stations

Masahiko Nakase, Takuhi Hara, Shinta Watanabe, Hidetoshi Kikunaga, Ryosuke Maki, Tohru Kobayashi, Tomofumi Sakuragi, Ryo Hamada, Miki Harigai

Bulletin of the Laboratory for Advanced Nuclear Energy   2023 ( 2 )   25 - 25   2023.12

Cross-disciplinary Research on Nuclear Power Systems to Reduce the Environmental Impact of Waste Disposal

Hidekazu Asano, Chi Young Han, Masahiko Nakase, Hiroshi Sagara, Kenji Takeshita

Bulletin of the Laboratory for Advanced Nuclear Energy   2023 ( 2 )   32 - 32   2023.12

Development of the Fluorinated Solvent for MA Separation by the Chemoinformatics Approach

Masahiko Nakase, Shinta Watanabe, Takashi Kajitani, Takuhi Hara, Chihiro Tabata, Tohru Kobayashi, Ryo Takahashi, Hitomi Ishida, Takashi Shimada, Kota Matsui

Bulletin of the Laboratory for Advanced Nuclear Energy   2023 ( 2 )   24 - 24   2023.12

Microbial Effects on Degradation of Nuclear Fuel Debris Analogues

Toshihiko Ohnuki, Jiang Liu, Yuma Dotsuta, Toru Kitagaki, Takehiro Sumita, Masaaki Kobata, Yukihiko Sato, Masahiko Nakase, Naofumi Kozai

Bulletin of the Laboratory for Advanced Nuclear Energy   2023 ( 2 )   35 - 35   2023.12

放射線って何だろう

Masahiko Nakase

2023.10

Nuclear Energy Systems Research and Development Project (Exploration of fluorine super solvent for MA extraction)

Masahiko Nakase, Miki Harigai, Shinta Watanabe, Takashi Kajitani, Chihiro Tabata, Toru Kobayashi, Takashi Shimada, Yasuhiro Ishida, Koichi Kakinoki

2023.4

原子力システム研究開発事業2022年報告書

Hidekazu Asano, Tomofumi Sakuragi, Ryo Hamada, Chi Young Han, Masahiko Nakase, Tatsuro Matsumura, Go Chiba, Hiroshi Sagara, Kenji Takeshita

2023.4

Challenge of Novel Hybrid-waste-solidification of Mobile Nuclei Generated in Fukushima Nuclear Power Station and Establishment of Rational Disposal Concept and its Safety Assessment (7) Fabrication and comprehensive characterization of hybrid waste

牧涼介, 中瀬正彦, 菊永英寿, 小林徹, 桜木智史, 針貝美樹, 田中真悟, 朝野英一, 丸山恵史

日本原子力学会秋の大会予稿集(CD-ROM)   2023   2023

Challenge of Novel Hybrid-waste-solidification of Mobile Nuclei Generated in Fukushima Nuclear Power Station and Establishment of Rational Disposal Concept and its Safety Assessment (10) Safety assessment of composite waste form for iodine immobilization

針貝美樹, 浜田涼, 桜木智史, 朝野英一, 渡邊真太, 中瀬正彦, 牧涼介, 菊永英寿, 小林徹

日本原子力学会春の年会予稿集(CD-ROM)   2023   2023

Challenge of Novel Hybrid-waste-solidification of Mobile Nuclei Generated in Fukushima Nuclear Power Station and Establishment of Rational Disposal Concept and its Safety Assessment (6) Progress in research project; irradiation effect and leaching behavior of hybrid solidified wastes

中瀬正彦, 渡邊真太, 牧涼介, 丸山恵史, 菊永英寿, 小林徹, 桜木智史, 浜田凉, 針貝美樹, 朝野英一

日本原子力学会春の年会予稿集(CD-ROM)   2023   2023

Challenge of Novel Hybrid-waste-solidification of Mobile Nuclei Generated in Fukushima Nuclear Power Station and Establishment of Rational Disposal Concept and its Safety Assessment (8) Development of rapid fabrication of synroc based waste-solidification using Spark Plasma Sintering(SPS) method

丸山恵史, 野村知司, 牧涼介, 中瀬正彦, 渡邊真太, 菊永英寿, 針貝美樹, 桜木智史, 浜田凉, 朝野英一

日本原子力学会春の年会予稿集(CD-ROM)   2023   2023

Challenge of Novel Hybrid-waste-solidification of Mobile Nuclei Generated in Fukushima Nuclear Power Station and Establishment of Rational Disposal Concept and its Safety Assessment (7) Effect of solidification process on immobilization of radionuclides in hybrid waste

牧涼介, 中瀬正彦, 渡邊真太, 丸山恵史, 菊永英寿, 小林徹, 桜木智史, 浜田凉, 針貝美樹, 朝野英一

日本原子力学会春の年会予稿集(CD-ROM)   2023   2023

Challenge of Novel Hybrid-waste-solidification of Mobile Nuclei Generated in Fukushima Nuclear Power Station and Establishment of Rational Disposal Concept and its Safety Assessment (9) Chemical state and structural analysis of solidified wastes by synchrotron radiation based XAFS

小林徹, 中瀬正彦, 渡邊真太, 牧涼介, 丸山恵史, 菊永英寿, 朝野英一, 朝野英一, 桜木智史, 浜田涼, 針貝美樹

日本原子力学会春の年会予稿集(CD-ROM)   2023   2023

Challenge of Novel Hybrid-waste-solidification of Mobile Nuclei Generated in Fukushima Nuclear Power Station and Establishment of Rational Disposal Concept and its Safety Assessment (13) Safety assessment considering leaching characteristics of hybrid waste and nuclides

針貝美樹, 田中真悟, 桜木智史, 朝野英一, 朝野英一, 中瀬正彦, 牧涼介, 菊永英寿, 小林徹

日本原子力学会秋の大会予稿集(CD-ROM)   2023   2023

Challenge of Novel Hybrid-waste-solidification of Mobile Nuclei Generated in Fukushima Nuclear Power Station and Establishment of Rational Disposal Concept and its Safety Assessment (11) Recent progress and selection of materials for hybrid waste solidification

中瀬正彦, 牧涼介, 桜木智史, 朝野英一, 針貝美樹, 菊永英寿, 小林徹, 丸山恵史

日本原子力学会秋の大会予稿集(CD-ROM)   2023   2023

マイクロビームXAFSを用いた福島第一原子力発電所由来廃棄物のハイブリッド固化体の分析

中瀬正彦, 渡邊真太, 牧涼介, 桜木智史, 浜田涼, 針貝美樹, 朝野英一, 菊永英寿, 小林徹

分析化学討論会講演要旨集(Web)   83rd   2023

Investigation of Ac solvent extraction using Ac-228~extraction behavior in pH condition~

宮脇琢斗, 白崎謙次, 中瀬正彦

日本イオン交換研究発表会講演要旨集   36th   2023

Development of an exploration scheme of chelate reagents for targeted alpha therapy by transfer learning

中瀬正彦, 西原尚宏, 岡村知拓, IKHWAN Fauzia Hanum, 白崎謙次, 宮脇琢斗, 松井孝太

日本イオン交換研究発表会講演要旨集   36th   2023

Investigation of Ac solvent extraction using ²²⁸Ac~extraction behavior in pH condition~

白崎謙次, 宮脇琢斗, 中瀬正彦

日本放射化学会討論会(Web)   67th   2023

原子力システム研究開発事業2021年報告書

Hidekazu Asano, Tomofumi Sakuragi, Ryo Hamada, Chi Young Han, Masahiko Nakase, Tatsuro Matsumura, Go Chiba, Hiroshi Sagara, Kenji Takeshita

2022.4

Nuclear Energy Systems Research and Development Project (Exploration of fluorine super solvent for MA extraction)

Masahiko Nakase, Miki Harigai, Shinta Watanabe, Takashi Kajitani, Chihiro Tabata, Toru Kobayashi, Takashi Shimada, Yasuhiro Ishida, Koichi Kakinoki

2022.4

Research project of hybrid waste solidification of various wastes generated by the Fukushima Daiichi Nuclear Power Plant Accident

Masahiko Nakase, Miki Harigai, Shinta Watanabe, Tomofumi Sakuragi, Ryo Hamada, Hidekazu Asano, Ryosuke Maki, Hidetoshi Kikunaga, Toru Kobayashi

Bulletin of the Laboratory for Advanced Nuclear Energy   1 ( 2022 )   50 - 50   2022.3

Cross-disciplinary research on nuclear power systems to reduce the environmental impact of waste disposal

Hidekazu Asano, Chi Young Han, Masahiko Nakase, Hiroshi Sagara, Kenji Takeshita

Bulletin of the Laboratory for Advanced Nuclear Energy   1 ( 2022 )   27 - 27   2022.3

Challenge of Novel Hybrid-waste-solidification of Mobile Nuclei Generated in Fukushima Nuclear Power Station and Establishment of Rational Disposal Concept and its Safety Assessment (4) Theoretical Analysis for Electronic and Structural Properties of Hybrid-waste-solidification Materials

渡邊真太, 針貝美樹, 中瀬正彦, 牧涼介, 菊永英寿, 小林徹, 桜木智史, 浜田涼, 朝野英一

日本原子力学会秋の大会予稿集(CD-ROM)   2022   2022

Complexation of actinides and lanthanides with water-soluble amides and carboxylic acids and their tetrad effect

佐々木祐二, 金子政志, 伴康俊, 野水大輝, 土田裕介, 松宮正彦, 中瀬正彦, 竹下健二, 下坂隆裕, 鈴木達也

日本原子力学会春の年会予稿集(CD-ROM)   2022   2022

Challenge of Novel Hybrid-waste-solidification of Mobile Nuclei Generated in Fukushima Nuclear Power Station and Establishment of Rational Disposal Concept and its Safety Assessment (3) Composite Waste Form to Immobilize Iodine with Metal Matrix by Hot Isostatic Pressing

桜木智史, 浜田涼, 朝野英一, 中瀬正彦, 針貝美樹, 渡邊真太, 牧涼介, 菊永英寿, 小林徹

日本原子力学会秋の大会予稿集(CD-ROM)   2022   2022

Challenge of Novel Hybrid-waste-solidification of Mobile Nuclei Generated in Fukushima Nuclear Power Station and Establishment of Rational Disposal Concept and its Safety Assessment (5) Preliminary study of disposal concept and safety assessment for composite waste form

浜田涼, 桜木智史, 朝野英一, 中瀬正彦, 針貝美樹, 渡邊真太, 牧涼介, 菊永英寿, 小林徹

日本原子力学会秋の大会予稿集(CD-ROM)   2022   2022

Challenge of Novel Hybrid-waste-solidification of Mobile Nuclei Generated in Fukushima Nuclear Power Station and Establishment of Rational Disposal Concept and its Safety Assessment (1) Overview of the project

中瀬正彦, 針貝美樹, 渡邊真太, 牧涼介, 菊永英寿, 小林徹, 桜木智史, 浜田涼, 朝野英一

日本原子力学会秋の大会予稿集(CD-ROM)   2022   2022

Challenge of Novel Hybrid-waste-solidification of Mobile Nuclei Generated in Fukushima Nuclear Power Station and Establishment of Rational Disposal Concept and its Safety Assessment (2) The Composite Wasteform by Spark Plasma Sintering (SPS) and its Characterization

牧涼介, 中瀬正彦, 針貝美樹, 渡邊真太, 菊永英寿, 小林徹, 桜木智史, 浜田凉, 朝野英一

日本原子力学会秋の大会予稿集(CD-ROM)   2022   2022

Project 7 Chemical and electronic properties of Actinide compounds and their applications (R2P7)

Tomoo Yamamura, Yoshinori Haga, Hiroshi Amitsuka, Tatsuya Suzuki, Kenji Shirasaki, Masanobu Nogami, Minori Abe, Hiroki Shishido, Masahiko Nakase, Hidetaka Nakai

KURNS Progress Report 2020   2020   45 - 50   2021.8

Project 13 Chemical and electronic properties of Actinide compounds and their applications (31P13)

Tomoo Yamamura, Chihiro Tabata, Yoshinori Haga, Hiroshi Amitsuka, Tatsuya Suzuki, Kenji Shirasaki, Minori Abe, Ayaki Sunaga, Masanobu Nogami, Hiroki Shishido, Masahiko Nakase

KURNS Progress Report 2020   2019   115 - 124   2021.8

原子力システム研究開発事業2020年報告書

Hidekazu Asano, Tomofumi Sakuragi, Ryo Hamada, Chi Young Han, Masahiko Nakase, Tatsuro Matsumura, Go Chiba, Hiroshi Sagara, Kenji Takeshita

2021.4

Study on Advanced nuclear energy system based on the environmental impact of radioactive waste disposal

Hidekazu Asano, Masahiko Nakase, Kenji Takeshita

Bulletin of the Laboratory for Advanced Nuclear Energy   6   23 - 25   2021.3

NMB4.0 : Development of Integrated Nuclear Fuel Cycle Simulation Code

Tomohiro Okamura, Ryota Katano, Akito Oizumi, Kenji Nishihara, Masahiko Nakase, Hidekazu Asano, Kenji Takeshita

Bulletin of the Laboratory for Advanced Nuclear Energy   6   29   2021.3

Study on phosphate waste form of ALPS sediment wastes generated in Fukushima Daiichi Nuclear Power Station

Masahiko Nakase, Miki Harigai, Kazuo Utsumi, Kenji Takeshita

Bulletin of the Laboratory for Advanced Nuclear Energy   6   26 - 27   2021.3

Study on Minor Actinide partitioning based on solvent extraction with valence control and novel fluorinated solvent

Masahiko Nakase, Miki Harigai, Chihiro Tabata, Tomoo Yamamura

Bulletin of the Laboratory for Advanced Nuclear Energy   6   28   2021.3

Selection of Nuclides for Mass-balance Analysis of Fission Products

Tomohiro Okamura, Kenji Nishihara, Akito Oizumi, Masahiko Nakase, Kenji Takeshita

JAEA-Data/Code   2020-023 ( 2020-023 )   1 - 32   2021.3

Development of Accelerated Exponential Method for Burnup Calculation in Nuclear Material Balance Code

岡村知拓, 大泉昭人, 西原健司, 中瀬正彦, 竹下健二

日本原子力学会春の年会予稿集(CD-ROM)   2021   2021

Development of Subcritical Water Ion Exchange System for Cleaning of Soil contaminated by Radioactive Cesium (3) Analysis of Desorption Mechanism of Cs from Vermiculite by Molecular Dynamics and First-principles Calculations

渡邊真太, 福田達弥, YIN Xiangbiao, 針貝美樹, 中瀬正彦, 竹下健二

日本原子力学会春の年会予稿集(CD-ROM)   2021   2021

Development of Subcritical Water Ion Exchange System for Cleaning of Soil contaminated by Radioactive Cesium (2) In-situ Observation of Vermiculite and Interlayer Ions in Subcritical Water Environment by Synchrotron XRD and EXAF

福田達弥, 高橋亮, 原卓飛, 渡邊真太, YIN Xiangbiao, 尾原幸治, 加藤和男, 松村大樹, 中瀬正彦, 竹下健二

日本原子力学会春の年会予稿集(CD-ROM)   2021   2021

Technical options of radioactive waste management for the second half of the 21^st Century, in consideration of Pu utilization and less environmentally impacted geological disposal (18) Effects of UO₂-MOX blended vitrified waste disposal on reduction of environmental impact

三成映理子, 岡村知拓, 中瀬正彦, 桜木智史, 浜田涼, 朝野英一, 朝野英一, 竹下健二

日本原子力学会春の年会予稿集(CD-ROM)   2021   2021

Development of stable solidification process of radioactive Cesium from contaminated soil by functional porous silica glass and struvite

YUAN Zhoufei, 中瀬正彦, 渡邊真太, 針貝美樹, 稲葉優介, 竹下健二

日本原子力学会春の年会予稿集(CD-ROM)   2021   2021

Development of Subcritical Water Ion Exchange System for Cleaning of Soil contaminated by Radioactive Cesium (1) Ion-exchange Desorption of Cs⁺ from Soil in Subcritical Water

竹下健二, YIN Xiangbiao, 渡邊真太, 福田達弥, 中瀬正彦

日本原子力学会春の年会予稿集(CD-ROM)   2021   2021

Study on advanced nuclear energy system based on the environmental impact of radioactive waste Disposal, (1) Environmental load and nuclear fuel cycle conditions in waste disposal

朝野英一, 桜木智史, 浜田涼, HAN Chi Young, 中瀬正彦, 松村達郎, 千葉豪, 相樂洋, 竹下健二

日本原子力学会春の年会予稿集(CD-ROM)   2021   2021

Development of stable solidification technique of ALPS sediment wastes by apatite ceramics (5) Synthesis of apatite and phosphate ceramics form the main components of ALPS sediment wastes

和田恵梨子, 中瀬正彦, 竹下健二, 金川俊, 土方孝敏, 駒義和

日本原子力学会春の年会予稿集(CD-ROM)   2021   2021

Mutual separation of trivalent lanthanide and actinides with its behavior of Sr, Tc and Pd by DGA extractant

佐々木祐二, 金子政志, 松宮正彦, 中瀬正彦, 竹下健二

日本原子力学会春の年会予稿集(CD-ROM)   2021   2021

Separation of An from Ln by multi-stage extraction using DGA and DTPA extraction system

佐々木祐二, 金子政志, 伴康俊, 松宮正彦, 中瀬正彦, 竹下健二

日本イオン交換研究発表会講演要旨集   35th   2021

Solvent extraction of uranyl and lanthanoid ions with CMPO in non-flammable hydrofluorocarbon diluents

田端千紘, 中瀬正彦, 針貝美樹, 白崎謙次, 山村朝雄

日本原子力学会春の年会予稿集(CD-ROM)   2021   2021

Development of Minor Actinides separation and storage technology by process using flame-retardant and low heat of vaporization diluent and CHON (10) Synthesis of fluorite-structured metal oxides by low-temperature hydrothermal method

田端千紘, 中瀬正彦, 針貝美樹, 白崎謙次, 山村朝雄, 柿木浩一, 小川尚樹, 浜口涼吉, 塚本泰介, 島田隆

日本原子力学会秋の大会予稿集(CD-ROM)   2021   2021

Establishment of acquisition protocol of thermodynamic data of Actinium and its solvent extraction behavior

中瀬正彦, 山村朝雄, 針貝美樹, 白崎謙次, 菅原真伍, 田端千紘

日本イオン交換研究発表会講演要旨集   35th   2021

原子力システム研究開発事業2019年報告書

Hidekazu Asano, Tomofumi Sakuragi, Ryo Hamada, Chi Young Han, Masahiko Nakase, Tatsuro Matsumura, Go Chiba, Hiroshi Sagara, Kenji Takeshita

2020.4

GLOBAL2019国際会議の概要報告

Masatoshi Iizuka, Yuya Takahashi, Yuji Sasaki, Masahiko Nakase, Tsuyoshi Murakami, Hirokazu Ohta, Naoyuki Takaki, Koichiro Takao, Takehiko Tsukahara

Journal of the Atomic Energy Society of Japan   62 ( 6 )   339 - 342   2020.1

Nuclear system research based on the environmental impact of waste disposal,

Hidekazu Asano, Tomohiro Okamura, Eriko Minari, Masahiko Nakase, Hiroshi Sagara, Kenji Takeshita

Bulletin of the Laboratory for Advanced Nuclear Energy   5   27 - 29   2020

Separation of f-block elements by extractant-immobilized hydrogel - Relation between complexation and polymeric characteristics –

Masahiko Nakase, Miki Harigai, Daiju Matsumura, Tsuyoshi Kajitani, Tomoo Yamamura, Kenkji Shirasaki, Kenji Takeshita

Bulletin of the Laboratory for Advanced Nuclear Energy   5   35 - 35   2020

Study of Cs desorption from vermiculite by in-situ observation of soil in subcritical condition

Masahiko Nakase, Tatsuya Fukuda, R.Takahashi, Kenji Takeshita

Bulletin of the Laboratory for Advanced Nuclear Energy   5   34 - 34   2020

Investigation of adsorption mechanism of PGMs by Alminium Hexaferrocyanide

Masahiko Nakase, Ria Mishima, Sotaro Tachioka, Kazuo Kato, Miki Harigai, Kenji Takeshita

Bulletin of the Laboratory for Advanced Nuclear Energy   5   32 - 33   2020

Development of mass balance analysis code for various waste management scenario

Tomohiro Okamura, Akito Oizumi, Kenji Nishihara, Masahiko Nakase, Kenji Takeshita

Bulletin of the Laboratory for Advanced Nuclear Energy   5   31 - 31   2020

Study on Degradation of Fuel Debris by Radiation, Chemical, and Biological Damage

Toshihiko Ohnuki, Masahiko Nakase, Satoshi Chiba, Yoshiyuki Oguri, Takehiko Tsukahara, Koichiro Takao, Kenji Takeshita

Bulletin of the Laboratory for Advanced Nuclear Energy   5   30 - 30   2020

Development of stable solidification technique of ALPS sediment wastes by apatite ceramics (2) Synthesis and characterization of apatite waste forms by solid-state reaction

金川俊, 金川俊, 中瀬正彦, 増田歩, 内海和夫, 土方孝敏, 竹下健二

日本原子力学会秋の大会予稿集(CD-ROM)   2020   2020

Development of DGA compounds and their mutual separations of trivalent lanthanide and actinides

佐々木祐二, 松宮正彦, 中瀬正彦

日本原子力学会春の年会予稿集(CD-ROM)   2020   2020

Basic research programs of vitrification technology for waste volume reduction (79) Scenario study on the volume reduction and disposal impact of waste generated from high-burnup UO₂ fuel

桜木智史, 朝野英一, 朝野英一, 岡村知拓, 三成映理子, 中瀬正彦, 竹下健二, 鬼木俊郎

日本原子力学会秋の大会予稿集(CD-ROM)   2020   2020

Technical options of radioactive waste management for the second half of the 21^st Century, in consideration of Pu utilization and less environmentally impacted geological disposal, (17) Study on the reduction of footprint of geological repository by combination of time factors in backend process and waste emplacements at geological repository

岡村知拓, 三成映理子, 中瀬正彦, 桜木智史, 朝野英一, 朝野英一, 竹下健二

日本原子力学会秋の大会予稿集(CD-ROM)   2020   2020

Development of DGA compound and separation of trivalent actinides from lanthanides using organic acid with DTPA-BA

佐々木祐二, 金子政志, 松宮正彦, 中瀬正彦, 竹下健二

日本原子力学会秋の大会予稿集(CD-ROM)   2020   2020

Development of stable solidification technique of ALPS sediment wastes by apatite ceramics (3) Synthesis of apatite waste form by sol/gel and hydrothermal methods and their properties

中瀬正彦, 増田歩, 金川俊, 金川俊, 内海和夫, 土方孝敏, 竹下健二

日本原子力学会秋の大会予稿集(CD-ROM)   2020   2020

Development of stable solidification technique of ALPS sediment wastes by apatite ceramics (4) Development of low temperature solidification technologies for apatite powder

土方孝敏, 中瀬正彦, 内海和夫, 竹下健二

日本原子力学会秋の大会予稿集(CD-ROM)   2020   2020

Development of cyano-group bridge-type coordination polymer with a high sorption characteristic of platinum-group elements for high quality and volume reduction of vitrified objects containing high-level radioactive nuclear wastes (10) Platinum-group elements sorption studies of aluminum ferrocyanide

三島理愛, 三島理愛, 稲葉優介, 立岡壮太郎, 針貝美樹, 渡邊真太, 尾上順, 中瀬正彦, 松村達郎, 竹下健二

日本原子力学会春の年会予稿集(CD-ROM)   2020   2020

Coordination and structural studies on complexes of f-block elements and amide-type-polyaminocalboxylic acid ligands

中瀬正彦, 青山友花子, 立岡壮太郎, 森田圭介, 佐々木祐二, 竹下健二

日本原子力学会春の年会予稿集(CD-ROM)   2020   2020

Technical options of radioactive waste management for the second half of the 21^st Century, in consideration of Pu utilization and less environmentally impacted geological disposal, (16) Load evaluation of geological disposal for MOX fuel-derived wastes

朝野英一, 朝野英一, 桜木智史, 三成映理子, 岡村知拓, 中瀬正彦, 竹下健二, 稲垣八穂広, 新堀雄一, 佐藤正知

日本原子力学会春の年会予稿集(CD-ROM)   2020   2020

Study on mutual separation of heavy lanthanide by combination of extractant and amidic acid-type hydrophobic complexant

中瀬正彦, 青山友花子, 増田歩, 針貝美樹, 竹下健二, 佐々木裕二, 松宮正彦

希土類   ( 76 )   2020

Synthesis of apatite solidification containing rare earth elements for stable immobilization of radioactive nuclides

増田歩, 金川俊, 青山友花子, 中瀬正彦, 竹下健二

希土類   ( 76 )   2020

Development of stable solidification technique of ALPS sediment wastes by apatite ceramics

Masahiko Nakase, Shun Kanagawa, Ayumu Masuda, Miki Harigai, Kazuo Utsumi, Kenji Takeshita

Bulletin of the Laboratory for Advanced Nuclear Energy   5   36 - 36   2020

Mechanism study on Cs desorption from clay minerals by rapid cation exchange under subcritical water environment by in-situ XRD and XAFS measurement

福田達弥, 高橋亮, 原卓飛, 尾原幸治, 加藤和男, 松村大樹, 中瀬正彦, 竹下健二

日本原子力学会秋の大会予稿集(CD-ROM)   2020   2020

Technical options of radioactive waste management for the second half of the 21^st Century, in consideration of Pu utilization and less environmentally impacted geological disposal (13) Waste management issues arising from Pu burning in LWR

桜木智史, 朝野英一, 朝野英一, 岡村知拓, 三成映理子, 中瀬正彦, 竹下健二, 稲垣八穂広, 新堀雄一, 佐藤正知

日本原子力学会春の年会予稿集(CD-ROM)   2020   2020

Technical options of radioactive waste management for the second half of the 21^st Century, in consideration of Pu utilization and less environmentally impacted geological disposal (15) Study on setting a standard case of the MOX vitrified waste disposal and the effect of MA separation to the thermal property

三成映理子, 岡村知拓, 中瀬正彦, 朝野英一, 朝野英一, 竹下健二

日本原子力学会春の年会予稿集(CD-ROM)   2020   2020

Technical options of radioactive waste management for the second half of the 21^st Century, in consideration of Pu utilization and less environmentally impacted geological disposal, (14) Thermal property of spent MOX fuel and its effect on geological disposal

岡村知拓, 三成映理子, 川合康太, 中瀬正彦, 朝野英一, 朝野英一, 竹下健二

日本原子力学会春の年会予稿集(CD-ROM)   2020   2020

21世紀後半に向けた廃棄物管理の選択肢:Pu利用推進と環境負荷低減型地層処分に関する研究(9)ガラス固化プロセスにおける廃棄物含有率と処分場の負荷低減

朝野英一, 朝野英一, 川久保政洋, 岡村知拓, 三成映理子, 中瀬正彦, 竹下健二, 稲垣八穂広, 新堀雄一, 佐藤正知

日本原子力学会春の年会予稿集(CD-ROM)   2019   2019

21世紀後半に向けた廃棄物管理の選択肢:Pu利用推進と環境負荷低減型地層処分に関する研究(11)MOX燃料におけるMA分離と処分場負荷削減効果の検討

三成映理子, 岡村知拓, 中瀬正彦, 朝野英一, 朝野英一, 竹下健二

日本原子力学会春の年会予稿集(CD-ROM)   2019   2019

亜臨界水環境における汚染土壌からのCs脱離反応速度解析

福田達弥, 高橋亮, YIN Xiangbiao, 稲葉優介, 針貝美樹, 中瀬正彦, 竹下健二

日本原子力学会春の年会予稿集(CD-ROM)   2019   2019

高レベル放射性廃液ガラス固化体の高品質・減容化のための白金族元素高収着能を有するシアノ基架橋型配位高分子材料の開発(4)プロセス評価

竹下健二, 岡村知拓, 針貝美樹, 稲葉優介, 中瀬正彦, 渡邊真太, 尾上順

日本原子力学会春の年会予稿集(CD-ROM)   2019   2019

モノアミド搭載型ハイドロゲルによる硝酸溶液からのウラン,トリウムの吸着分離

中瀬正彦, 山村朝雄, 白崎謙次, 永井満家, 小林徹, 松村大樹, 青山友花子, 立岡壮太郎, 竹下健二

日本原子力学会秋の大会予稿集(CD-ROM)   2019   2019

フェロシアン化アルミニウムによる高レベル放射性廃液からのパラジウム吸着

立岡壮太郎, 三島理愛, 針貝美樹, 中瀬正彦, 稲葉優介, 竹下健二, 渡邊真太, 尾上順

日本吸着学会研究発表会講演要旨集   33rd   2019

DGAを利用する抽出系での希土類パターンとランタノイド,アクチノイド相互分離

佐々木祐二, 伴康俊, 森田圭介, 松宮正彦, 中瀬正彦

日本原子力学会春の年会予稿集(CD-ROM)   2019   2019

2,9-ジアミド-1,10-フェナントロリンを骨格とした長鎖アルキル基を有する新規ハイブリッド型配位子の合成とマイナーアクチノイド及びランタノイドの抽出特性

伊藤紗弓, 中瀬正彦, 筒井菜緒, 筒井菜緒, 松村達郎, 竹下健二

日本原子力学会春の年会予稿集(CD-ROM)   2019   2019

配位子搭載型ハイドロゲルによる硝酸溶液からのウラン,トリウムの吸着分離

中瀬正彦, 山村朝雄, 白崎謙次, 永井満家, 小林徹, 松村大樹, 竹下健二

日本原子力学会春の年会予稿集(CD-ROM)   2019   2019

21世紀後半に向けた廃棄物管理の選択肢:Pu利用推進と環境負荷低減型地層処分に関する研究(10)横置き方式による廃棄体専有面積削減効果の検討

岡村知拓, 三成映理子, 中瀬正彦, 朝野英一, 朝野英一, 竹下健二

日本原子力学会春の年会予稿集(CD-ROM)   2019   2019

Synthesis of neptunium phthalocyanine complex and investigation of its electronic states

山村朝雄, 田端千紘, 白崎謙次, 中瀬正彦, LI Dexin, 阿部千景

東北大学金属材料研究所附属量子エネルギー材料科学国際研究センター共同利用研究経過報告書(CD-ROM)   36   2019

錯体構造からみたランタノイド(III)イオンのサイズ認識

中瀬正彦, 小林徹, 塩飽秀啓, 矢板毅, 竹下健二

日本イオン交換研究発表会講演要旨集   31st   2015

マイクロプラズマリアクターによるメタンからメタノールの常温直接合成

野崎智洋, 中瀬正彦, ANIL Agiral, 岡崎健

石油・石油化学討論会講演要旨   39th   109   2009.10

Direct methane-to-methanol conversion using microplasma reactor at room temperature

Nozaki Tomohiro, Nakase Masahiko, Agiral Anil, Okazaki Ken

Proceeding of Annual/Fall Meetings of the Japan Petroleum Institute   2009 ( 0 )   70 - 70   2009

マイクロプラズマリアクターによるメタンの低温直接液体燃料化(GTL)

中瀬 正彦, Anil Agiral, 岡崎 健, 野崎 智洋

化学工学会 研究発表講演要旨集   2009 ( 0 )   370 - 370   2009

持続的な原子力利用のためのアクチノイドマネジメントを備えた燃料サイクルの研究(22)高速炉実証炉の諸量評価研究

Tomohiro Okamura, Masahiko Nakase, Takashi Shimada, Hiroki Tsukamoto, Yuki Konishi, Keisuke Nishimura, Tomoo Yamamura

Atomic Energy Society of Japan 2026 Spring Annual Meeting  2026.3 

The Case for Pu-fuelled Molten Chloride Fast Reactor for Nuclear Marine Propulsion

Andika Putra Dwijayanto, Kenji Nishihara, Tomohiro Okamura, Masahiko Nakase

Atomic Energy Society of Japan 2026 Spring Annual Meeting  2026.3 

Aryl-Substituent Effects in Thiodiglycolamide Ligands: Alkyl Chain Length Modification for Enhanced Palladium(II) Extraction

Qiushi Wang, Ahid Nurmanjaya, Masahiko Nakase

Atomic Energy Society of Japan 2026 Spring Annual Meeting  2026.3 

Towards a World Model of the Nuclear Fuel CycleFrom Past Reconstruction to Future Assessment of Fuel Demand, Waste Treatment and Strategic Stability

Alessio Rossi, Masahiko Nakase, Tomohiro Okamura, Kenji Nishihara, Kouki ONO

Atomic Energy Society of Japan 2026 Spring Annual Meeting  2026.3 

持続的な原子力利用のためのアクチノイドマネジメントを備えた燃料サイクルの研究(20)二次廃棄物量低減に向けたMA暫定保管体への直接転換技術の開発

Taisuke Tsukamoto, Tasuku Orino, Keisuke Nishimura, Yuki Konishi, Hiroki Tsukamoto, Takashi Shimada, Masahiko Nakase, Yasutoshi Ban, Yasuhiro Tsubata, Tomoo Yamamura

Atomic Energy Society of Japan 2026 Spring Annual Meeting  2026.3 

TASKI:AIを基盤とした原子力ナレッジマネジメントシステム(5)非構造データのナレッジベース化

Takahiro Nishihara, Tomohiro Okamura, Hidekazu Asano, Masahiko Nakase

Atomic Energy Society of Japan 2026 Spring Annual Meeting  2026.3 

A World Model of the Nuclear Fuel Cycle From Past Reconstruction to Future Assessment of Fuel Demand, Waste Treatment and Strategic Stability

Alessio Rossi, Masahiko Nakase, Tomohiro Okamura, Kenji Nishihara, Kouki Ono

Atomic Energy Society of Japan 2026 Spring Annual Meeting  2026.3 

The Case for Molten Chloride Fast Reactor with RGPu-Th Fuel for Nuclear Marine Propulsion

Andika Putra Dwijayanto, Kenji Nishihara, Tomohiro Okamura, Masahiko Nakase

Atomic Energy Society of Japan 2026 Spring Annual Meeting  2026.3 

Neutronic Design of a Compact Heat-Pipe Microreactor with Preliminary Thermal Evaluation for Lunar Application

Ayoob Ilyas, Masahiko Nakase, Andika Putra Dwijayanto, Alessio Rossi, Hide Okada, Chris Allison, Zheng Fu, Shuying Jiang

Atomic Energy Society of Japan 2026 Spring Annual Meeting  2026.3 

Comparison Study on Crystalline Phases in Ce-bearing Titanate SYNROC Synthesized by Conventional and Spark Plasma Sintering

Ryota Nakazawa, Satofumi Maruyama, Ryosuke Maki, Lewis R. Blackburn, Colin Boxall, Masahiko Nakase

Waste Management Symposia 2026 (WM2026)  2026.3 

Towards the World-Wide Modelling of the Nuclear Fuel Cycle

Alessio Rossi, Masahiko Nakase, Tomohiro Okamura, Kenji Nishihara, Kouki ONO

The 19th Student Research Presentation on AESJ Kanto-Koetsu Office  2026.3 

Structure–Extraction Relationship of Aromatic-Substituted TDGA Derivatives for Pd(II) in Nitric Acid Media

Qiushi Wang, Ahid Nurmanjaya, Masahiko Nakase

The 19th Student Research Presentation on AESJ Kanto-Koetsu Office  2026.3 

Online or Offline? Evaluating the Refuelling Options for Marine Molten Chloride Fast Reactor

Andika Putra Dwijayanto, Tomohiro Okamura, Masahiko Nakase

The 19th Student Research Presentation on AESJ Kanto-Koetsu Office  2026.3 

Extraction behavior of Short-Chain Ligands for f-Block Elements in Novel Fluorinated Diluents

Ahid Nurmanjaya, Qiushi Wang, Taisuke Tsukamoto, Takashi Shimada, Tomoo Yamamura, Masahiko Nakase

The 19th Student Research Presentation on AESJ Kanto-Koetsu Office  2026.3 

[招待講演] 核燃料サイクルと資源循環：核種分離がもたらす原子力の新しい価値と未来－廃棄物処分負荷低減と資源有効利用に向けて－ Invited

Masahiko Nakase

Kanto Branch Research Presentation Meeting of the Japan Society of Material Cycles and Waste Management  2026.2 

アクチノイドマネジメントを備えた燃料サイクルの研究(1)MA分離・暫定保管の有効性評価

Takashi Shimada, Tomohiro Okamura, Masahiko Nakase, Kenji Takeshita, Yuki Konishi, Keisuke Nishimura, Hiroki Tsukamoto, Tomoo Yamamura

19th Seminar of the Reprocessing and Recycle Technology Division on AESJ  2026.1 

ケモインフォマティクスを用いたマイナーアクチノイド抽出剤探査の取り組み;最近の展開の紹介

Masahiko Nakase

2025.12 

A New Cross Sections Database for the Simulation of MSRs within the NMB Code

Alessio Rossi, Masahiko Nakase, Tomohiro Okamura, Chikako Ishizuka, Jiri Krepel

Joint Symposium on Nuclear Data and ERATO TOMOE project in 2025  2025.11 

History and Future of Nuclear Energy Utilization in the Maritime Industry

Taiga Mitsuyuki, Tomohiro Okamura, Masahiko Nakase, Shinnosuke Wanaka

2020 Japan Society of Naval Architects and Ocean Engineers Autumn Lecture  2025.11 

Can Nuclear-Powered Ships Be Implemented in Japan? - Exploring Concepts and Challenges

Hoshi Tagawa, Taiga Mitsuyuki, Masahiko Nakase, Tomofumi Sakuragi, Masaki Adachi, Akiko Konnai, Hiroshi Nakatani

2020 Japan Society of Naval Architects and Ocean Engineers Autumn Lecture  2025.11 

The Disposal Issue of Radioactive Waste Generated by Nuclear-Powered Ships

Tomofumi Sakuragi, Masahiko Nakase, Hidekazu Asano

2020 Japan Society of Naval Architects and Ocean Engineers Autumn Lecture  2025.11 

Investigation of the Nuclear Back-End Requirements for the Widespread Deployment of Nuclear-Powered Ships

Masahiko Nakase, Tomofumi Sakuragi, Hidekazu Asano

2020 Japan Society of Naval Architects and Ocean Engineers Autumn Lecture  2025.11 

[Invited] Chemoinformatics-Guided Design of MA Extractants - Integrating Fluorinated Solvents and Machine Learning Invited

Masahiko Nakase, Takahiro Nishihara, Tomohiro Okamura

22nd Symposium on Separation Science and Technology for Energy Applications  2025.11 

Toward Energy Sustainability: Nuclear Fuel Cycle Simulation for Indonesia's 43.9 GW Nuclear Power Program

Andika Putra Dwijayanto, Masahiko Nakase, I Wayan Ngarayana, Tomohiro Okamura, Gagad Rahmadi, Djarot Sulistio Wisnubroto

The 2nd Saudi International Conference on Nuclear Power Engineering (SCOPE-2)  2025.11 

[Encouragement Award] Separation Science in Practice and Prospect - Fifteen Years of Innovation from Equipment to Informatics Invited

Masahiko Nakase

The 38th Symposium on Japan Society of Ion Exchange, The 44th Symposium on Solvent Extraction of Japan Association of Solvent Extraction  2025.10 

Study on the introduction scenario of innovative fast chloride molten salt reactors for the realization of a zero-carbon society

Masahiko Nakase, Andika Putra Dwijayanto, Tomohiro Okamura, Kenji Nishihara

The 7th International Symposium on Innovative Materials and Processes in Energy Systems (IMPRES2025) 

Exploring the Potential of Molten Chloride Fast Reactor as a Versatile Zero-Carbon Energy System

Andika Putra Dwijayanto, Tomohiro Okamura, Kenji Nishihara, Masahiko Nakase

The 7th International Symposium on Innovative Materials and Processes in Energy Systems (IMPRES2025) 

シンロック固化体の析出相予測に向けたTiO2-CeO2系の高温相平衡調査

Ryota Nakazawa, Satofumi Maruyama, Ryosuke Maki, Lewis R. Blackburn, Colin Boxall, Masahiko Nakase

7th Radioactive Waste Solidification Symposium  2025.10 

原子力発電実績を用いた諸量評価の妥当性確認

Tomohiro Okamura, Kouki Ono, Taiga Suzuki, Takumi Abe, Takahiro Nishihara, Masahiko Nakase, Kenji Nishihara

7th Radioactive Waste Solidification Symposium  2025.10 

[招待講演] ゼロカーボン社会の実現と原子燃料サイクルの構築に向けたANSYSソフトウエアを用いた研究開発例の紹介

Masahiko Nakase

ANSYS Simulation World 2025  2025.10 

Comparison of Molten Chloride Fast Reactor Burnup Calculation using Serpent-2 and OpenMC

Andika Putra Dwijayanto, Tomohiro Okamura, Masahiko Nakase

The 8th International Energy Conference ASTECHNOVA2025 

Introduction of Science Tokyo, Nakase lab and some research topics in nuclear engineering Invited

Masahiko Nakase

Workshop on Nuclear Advancement  2025.10 

Synthesis of fluorite-type superlattice structure compounds for synroc solidification

Ryosuke Maki, Satofumi Maruyama, Ryota Nakazawa, Masahiko Nakase, Kenji Shirasaki, Yoshihiro Kusano

International Symposium on Green Processing for Advanced Ceramics (IGPAC2025)  2025.10 

[Keynote speech] Extractant Exploration for Actinide Separation: Harnessing IDEaL Database and Chemoinformatics Tools

Masahiko Nakase, Takahiro Nishihara, Tomohiro Okamura, Shahab Debiran

International Solvent Extraction Conference 2025 (ISEC2025) 

Hydrophobic Natural Deep Eutectic Solvents for Enhanced Lanthanide Extraction and Separation

Masahiko Nakase, Marc Castello Escurie, Maria Boltoeva, Dominique Treboue

International Solvent Extraction Conference 2025 (ISEC2025) 

TASKI:AIを基盤とした原子力ナレッジマネジメントシステム(2) 知識継承のための AI エージェント

Takahiro Nishihara, Tomohiro Okamura, Hidekazu Asano, Masahiko Nakase

Atomic Energy Society of Japan 2025 Autumn Meeting  2025.9 

塩化物溶融塩高速炉のフィージビリティー研究 (V)(5) 研究概要

Michio Yamawaki, Hiroyasu Mochizuki, Koshi Mitachi, Yoichiro Shimazu, Chikako Ishizuka, Masahiko Nakase, Yuji Arita, Tsuyoshi Murakami, Tadafumi Koyama, Kenichi Fukumoto

Atomic Energy Society of Japan 2025 Autumn Meeting  2025.9 

持続的な原子力利用のためのアクチノイドマネジメントを備えた燃料サイクルの研究(12)機械学習を用いたMA抽出剤側鎖構造の探査スキームの構築

Masahiko Nakase, Takahiro Nishihara, Tomohiro Okamura, Taisuke Tsukamoto, Takashi Shimada, Tomoo Yamamura

Atomic Energy Society of Japan 2025 Autumn Meeting  2025.9 

持続的な原子力利用のためのアクチノイドマネジメントを備えた燃料サイクルの研究(10) 処分面積低減の視点からのMA分離の目標設定

Takashi Shimada, Tomoo Yamamura, Miki Harigai, Keisuke Nishimura, Yuki Fukuda, Kazuhisa Yamashina, Masahiko Nakase, Tomohiro Okamura, Kenji Takeshita, Yasutoshi Ban

Atomic Energy Society of Japan 2025 Autumn Meeting  2025.9 

持続的な原子力利用のためのアクチノイドマネジメントを備えた燃料サイクルの研究(14) 軽水炉/高速炉共存期におけるプルトニウムマネジメント

Kenji Takeshita, Tomohiro Okamura, Masahiko Nakase, Takashi Shimada, Yuki Konishi, Keisuke Nishimura, Hitomi Ishida, Tomoo Yamamura

Atomic Energy Society of Japan 2025 Autumn Meeting  2025.9 

持続的な原子力利用のためのアクチノイドマネジメントを備えた燃料サイクルの研究(13) CHON抽出剤抽出有機相からの (U,Nd,Zr,Y,Pd)O2蛍石固溶体への直接転換

Tomoo Yamamura, Miki Harigai, Takashi Shimada, Masahiko Nakase, Yuki Konishi, Keisuke Nishimura, Taisuke Tsukamoto, Hitomi Ishida, Yasutoshi Ban, Takehiko Sato

Atomic Energy Society of Japan 2025 Autumn Meeting  2025.9 

TASKI:AIを基盤とした原子力ナレッジマネジメントシステム(4) AI を用いた原子力発電予測に向けた諸量評価モデルの開発

Kouki Ono, Tomohiro Okamura, Takumi Abe, Takahiro Nishihara, Masahiko Nakase, Kenji Nishihara, Taiga Suzuki

Atomic Energy Society of Japan 2025 Autumn Meeting  2025.9 

スパークプラズマ焼結法によるシンロック固化体の相状態への影響評価

Ryota Nakazawa, Satofumi Maruyama, Ryosuke Maki, Masahiko Nakase

Atomic Energy Society of Japan 2025 Autumn Meeting  2025.9 

放射性廃棄物の減容化に向けたガラス固化技術の基盤研究(140) ガラス固化工程及び固化体貯蔵・処分に適したMA分離技術の適用性検討

Yuichi Sano, Sou Watanabe, Masayuki Takeuchi, Tsuyoshi Arai, Hiroki Fukumoto, Seong-Yun Kim, Masahiko Nakase, Takehiko Tsukahara

Atomic Energy Society of Japan 2025 Autumn Meeting  2025.9 

TASKI:AIを基盤とした原子力ナレッジマネジメントシステム(1) 原子力分野への生成AIの活用

Tomohiro Okamura, Takahiro Nishihara, Hidekazu Asano, Masahiko Nakase

Atomic Energy Society of Japan 2025 Autumn Meeting  2025.9 

委員会の総括と今後の課題

Masahiko Nakase

Atomic Energy Society of Japan 2025 Autumn Meeting  2025.9 

TASKI:AIを基盤とした原子力ナレッジマネジメントシステム(3)AIとナレッジベースを組合せた人材育成

Hidekazu Asano, Tomohiro Okamura, Takahiro Nishihara, Masahiko Nakase

Atomic Energy Society of Japan 2025 Autumn Meeting  2025.9 

AI を用いた原子力発電予想に向けた諸量評価モデルの開発

Kouki Ono, Tomohiro Okamura, Taiga Suzuki, Takumi Abe, Takahiro Nishihara, Masahiko Nakase, Kenji Nishihara

Atomic Energy Society of Japan 2025 Autumn Meeting  2025.9 

[Invited Speech] Investigation of ZrCaTi2O7-CaTiO3-CeOx phase diagram for actinide solidification based on SYNROC Invited

Ryota Nakazawa, Masahiko Nakase

Institute for Materials Research, Tohoku University Oarai / Alpha Joint meeting  2025.9 

[Invited Speech] Study on a scheme for designing MA separation reagents based on machine learning Invited

Masahiko Nakase, Takahiro Nishihara, Ahid NURMANJAYA, Ryota Nakazawa, Joonho LEE, Tomohiro Okamura

Institute for Materials Research, Tohoku University Oarai / Alpha Joint meeting  2025.9 

TASKI: AI basedKnowledge Management System

Tomohiro Okamura, Takahiro Nishihara, Hidekazu Asano, Masahiko Nakase

Technical Meeting on Innovations in Data Analysis and Retrieval for Nuclear Decommissioning  2025.8 

福島第⼀廃炉研究への東京科学⼤の取り組み（1）多様な廃棄物のデジタル管理に関する研究

Tomohiro Okamura, Takahiro Nishihara, Masahiko Nakase

The 21st Academic Conference of the Japan Society of Maintenology  2025.7 

NEUChain: Next Generation Digital Twin for Nuclear Energy System and AI-Based Knowledge Management System

Tomohiro Okamura, Takahiro Nishihara, Kunitaka Jimichi, Hidekazu Asano, Masahiko Nakase

NEA Workshop on Digital Safety Case Integration for Radioactive Waste and Geological Disposal  2025.4 

Implementation of Uranium Enrichment Cascade Model to Nuclear Fuel Cycle Simulator

Takumi Abe, Taiga Suzuki, Tomohiro Okamura, Masahiko Nakase, Kenji Nishihara, Kenji Takeshita

NEA Workshop on Digital Safety Case Integration for Radioactive Waste and Geological Disposal  2025.4 

NEUChain: An Blockchain & AI-Based Secured Knowledge Management System for Nuclear Energy System

Takahiro Nishihara, Tomohiro Okamura, Masahiko Nakase

NEA Workshop on Digital Safety Case Integration for Radioactive Waste and Geological Disposal  2025.4 

持続的な原子力利用のためのアクチノイドマネジメントを備えた燃料サイクルの研究(4)燃料サイクルにおけるアクチノイドのマネジメント基本方針とKPI

Takashi Shimada, Tomoo Yamamura, Miki Harigai, Masahiko Nakase, Kenji Takeshita, Tomohiro Okamura, Yasutoshi Ban, Hiroki Tsukamoto, Keisuke Nishimura, Hiromichi Gima

Atomic Energy Society of Japan 2025 Spring Annual Meeting  2025.3 

Investigation on Fuel Cycle based on Actinide Management Towards Sustainable Use of Nuclear Energy(8) Separation of minor actinide by using DGA derivatives and diluent with low heat of Vaporizatio

Fauzia Hanum Ikhwan, Masahiko Nakase, Takahiro Nishihara, Tomohiro Okamura, Kenji Takeshita, Taisuke Tsukamoto, Keisuke Nishimura, Takashi Shimada, Tomoo Yamamura

Atomic Energy Society of Japan 2025 Spring Annual Meeting  2025.3 

塩化物溶融塩高速炉のフィージビリティー研究(V)(4)溶融塩高速炉の諸量評価

Masahiko Nakase, Tomohiro Okamura, Yoshihisa Tahara, Hiroyasu Mochizuki, Tsuyoshi Murakami, Tadafumi Koyama

Atomic Energy Society of Japan 2025 Spring Annual Meeting  2025.3 

CsMP中におけるCs及びIの挙動の実験的解明

Toshihiko Ohnuki, Satoshi Utsunomiya, Masahiko Nakase, Masahide Takano, Terumi Dohi

Atomic Energy Society of Japan 2025 Spring Annual Meeting  2025.3 

NMB4への遠心分離理想カスケード濃縮モデルの実装と回収ウラン活用シナリオの諸量評価

Takumi Abe, Taiga Suzuki, Tomohiro Okamura, Masahiko Nakase, Kenji Nishihara, Kenji Takeshita

Atomic Energy Society of Japan 2025 Spring Annual Meeting  2025.3 

持続的な原子力利用のためのアクチノイドマネジメントを備えた燃料サイクルの研究(5)LF共存期におけるアクチノイドマネジメント機能の諸量評価

Tomohiro Okamura, Masahiko Nakase, Kenji Takeshita, Takashi Shimada, Koki Hibi, Yuki Konishi, Keisuke Nishimura, Hitomi Ishida, Tomoo Yamamura

Atomic Energy Society of Japan 2025 Spring Annual Meeting  2025.3 

持続的な原子力利用のためのアクチノイドマネジメントを備えた燃料サイクルの研究(7)低気化熱希釈剤を用いたMA分離・直接転換プロセスの開発

Taisuke Tsukamoto, Yuki Konishi, Keisuke Nishimura, Takashi Shimada, Yasutoshi Ban, Yasuhiro Tsubata, Masahiko Nakase, Tomoo Yamamura

Atomic Energy Society of Japan 2025 Spring Annual Meeting  2025.3 

持続的な原子力利用のためのアクチノイドマネジメントを備えた燃料サイクルの研究(3)研究・プロセスの全体像と社会実装に向けたTRL設定

Tomoo Yamamura, Miki Harigai, Takashi Shimada, Tomohiro Okamura, Masahiko Nakase, Kenji Takeshita, Yuki Konishi, Keisuke Nishimura, Taisuke Tsukamoto, Yasutoshi Ban

Atomic Energy Society of Japan 2025 Spring Annual Meeting  2025.3 

アクチノイド分離科学研究における機械学習の適用～閉塞状況の打破を目指して～

Masahiko Nakase

2025.3 

英国との原子力バックエンド、廃棄物・処分研究の連携、協力関係形成のための学術交流～力強い国際展開を目指して～

Masahiko Nakase

Science Tokyo, Institute of Integrated Research, Center for Fundamental Research, Research Results Presentation 2024  2025.3 

塾生の活動報告（第２期生）－ゼロカーボン研究所中瀬研究室における原子力R&Dの国際展開について

Masahiko Nakase

Science Tokyo, Institute of Integrated Research, Center for Fundamental Research, Research Results Presentation 2024  2025.3 

MA抽出のためのフッ素系スーパー溶媒の探査

Masahiko Nakase

2025.3 

NMBを用いた溶融塩高速炉の諸量評価研究

Masahiko Nakase, Tomohiro Okamura, Yoshihisa Tahara, Hiroyasu Mochizuki, Tsuyoshi Murakami, Tadafumi Koyama

6th Zero Carbon Energy Institute Colloquium, FY 2024 "NuMBAC2025: Benchmarking and Utilization of Nuclear Fuel Cycle Simulator"  2025.2 

核燃料サイクルシミュレータNMB4のこれまで

Takumi Abe, Tomohiro Okamura, Masahiko Nakase, Kenji Nishihara, Kenji Takeshita

6th Zero Carbon Energy Institute Colloquium, FY 2024 "NuMBAC2025: Benchmarking and Utilization of Nuclear Fuel Cycle Simulator"  2025.2 

次世代核燃料サイクルの再処理工程におけるフェロシアン化アルミニウムを用いたPGM、Mo分離の導入による高レベル放射性廃棄物の処分負荷低減に関する研究

Ria Mishima, Tomohiro Okamura, Takumi Abe, Masahiko Nakase

6th Zero Carbon Energy Institute Colloquium, FY 2024 "NuMBAC2025: Benchmarking and Utilization of Nuclear Fuel Cycle Simulator"  2025.2 

分散型台帳技術と諸量評価コードの結節による核燃料サイクルのデジタルツイン構築

Tomohiro Okamura, Takahiro Nishihara, Taiga Suzuki, Takumi Abe, Kenji Nishihara, Masahiko Nakase

6th Zero Carbon Energy Institute Colloquium, FY 2024 "NuMBAC2025: Benchmarking and Utilization of Nuclear Fuel Cycle Simulator"  2025.2 

Nuclear Fuel Cycle Simulation for Indonesia's 43.9 GW Nuclear Power Program

Gagad RAHMADI, Tomohiro Okamura, Andika Putra DWIJAYANTO, Masahiko Nakase, Djarot Sulistio Wisnubroto

6th Zero Carbon Energy Institute Colloquium, FY 2024 "NuMBAC2025: Benchmarking and Utilization of Nuclear Fuel Cycle Simulator"  2025.2 

Techno-economical and Uranium Resource Consideration of Marine MCFR Core Design Selection

Andika Putra Dwijayanto, Tomohiro Okamura, Masahiko Nakase

6th Zero Carbon Energy Institute Colloquium, FY 2024 "NuMBAC2025: Benchmarking and Utilization of Nuclear Fuel Cycle Simulator"  2025.2 

Current Status and Next Development of Fuel Cycle Analysis Technique for the Future Scenarios: Research Committee on Fuel Cycle Analysis Technique for FutureNuclear Scenarios in Atomic Energy Society

Kenji Takeshita, Tomohiro Okamura, Naoto Aizawa, Masahiko Nakase, Takashi Shimada, Kenji Nishihara

International Symposium on Green Transformation Initiative and Innovative Zero-Carbon Energy Systems, GXI-ZES  2025.1 

Three Years of NMB4.0: A Driving Force Toward Nuclear Innovation Through Open Access Nuclear Fuel Cycle Simulator Development

Tomohiro Okamura, Takumi Abe, Taiga Suzuki, Masahiko Nakase, Kenji Takeshita, Kenji Nishihara

International Symposium on Green Transformation Initiative and Innovative Zero-Carbon Energy Systems, GXI-ZES  2025.1 

Chemoinformatic attempts to elucidate candidate extractant structures for enhanced MA separation

Masahiko Nakase, Takahiro Nishihara, Tomohiro Okamura, Fauzia Hanum Ikhwan, Alaaeldine Shaker, Mohammed Saleh, Kota Matsui

International Symposium on Green Transformation Initiative and Innovative Zero-Carbon Energy Systems, GXI-ZES  2025.1 

燃料デブリの安定固化を目指した人工岩石固化体の開発と顕微XAFSによる評価

Masahiko Nakase, Ryosuke Maki, Satofumi Maruyama, Tomofumi Sakuragi, Shingo Tanaka, Miki Harigai, Hidekazu Asano, Hidetoshi Kikunaga, Toru Kobayashi, Hajime Tanida

The 38th Annual Meeting of the Japanese Society for Synchrotron Radiation Research Joint Symposium on Synchrotron Radiation Science  2025.1 

[招待講演] 核燃料サイクルバックエンド研究開発における機械学習、デジタル技術の適用性について～東京科学大学中瀬研での取り組みの紹介～ Invited

Masahiko Nakase, Tomohiro Okamura, Takahiro Nishihara

Japan Atomic Energy Agency Academic Lecture  2024.12 

R & D activities related to digital technology, waste and knowledge management in Nakase lab

Masahiko Nakase

Discussion with the IAEA on knowledge management  2024.11 

In situ 時間分解 Ce K 端 DXAFS 法によるガラス融液中のセリウムイオン酸化還元挙動の解明

Saki Ozawa, Yudai Shiozawa, Yoshitaka Saijo, Tatsuya Miyajima, Daiju Matsumura, Takuya Tsuji, Masahiko Nakase, Terutaka Maehara

The 65th Symposium on Glass and Photonic Materials  2024.11 

ANSYS FluentおよびPythonを活用した抽出クロマトグラフィー計算における効率的パラメータ探索環境の整備

Masahiko Nakase, Takahiro Nishihara, Tomohiro Okamura, Sou Watanabe, Yuichi Sano, Masayuki Takeuchi

The 37th Symposium on Japan Society of Ion Exchange, The 43th Symposium on Solvent Extraction of Japan Association of Solvent Extraction  2024.11 

Sr(II)溶媒抽出におけるクラウンエーテルによる競合錯形成反応の評価

Kenji Shirasaki, Masahiko Nakase

The 37th Symposium on Japan Society of Ion Exchange, The 43th Symposium on Solvent Extraction of Japan Association of Solvent Extraction  2024.10 

機械学習アプローチを援用したマイナーアクチノイド抽出分離システムの探索

Masahiko Nakase, Takahiro Nishihara, Tetus Rattanasirimaneewate, Fauzia Hanum Ikhwan, Tomohiro Okamura, Kota Matsui, Alaaeldine Shaker Mohammed Saleh

The 37th Symposium on Japan Society of Ion Exchange, The 43th Symposium on Solvent Extraction of Japan Association of Solvent Extraction  2024.11 

[Invited, International Advisory Panel] Socio-tech ecosystem & orchestration for accomplish disruptive nuclear innovation Invited

Masahiko Nakase

NEA Steering Committee meeting, OCECD headquarter  2024.10 

Tokyo Tech's Collaboration Research with TEPCO for Decommissioning (9) NEUCHAIN-F: Development of data management system for diversified 1F waste

Tomohiro Okamura, Takahiro Nishihara, Masahiko Nakase

International Topical Workshop on Fukushima-Daiichi Decommissioning Research 2024 (FDR2024)  2024.10 

Chromatographic Separation of Actinides High Accurate Mass Spectrometric Analyses

Fauzia Hanum Ikhwan, Hiroyuki Kazama, Chikage Abe, Kenji Konashi, Masahiko Nakase, Tatsuya Suzuki

International Topical Workshop on Fukushima-Daiichi Decommissioning Research 2024 (FDR2024)  2024.10 

Tokyo Tech's Collaboration Research with TEPCO for Decommissioning (6) Stable Solidification Technique for ALPS Sediment Wastes

Anna Gubarevich, Ryotaro Kubo, Katsumi Yoshida, Shintaro Yasui, Masahiko Nakase, Kenji Takeshita, Ryouichi Masuda, Kyoichi Asano, Atsushi Chiba, Taichi Sakai

International Topical Workshop on Fukushima-Daiichi Decommissioning Research 2024 (FDR2024)  2024.10 

Tokyo Tech's Collaboration Research with TEPCO for Decommissioning (8) Development of rapid solidification technology for 1F waste using advanced sintering methods

Masahiko Nakase, Ryosuke Maki, Satofumi Maruyama, Tomofumi Sakuragi, Shingo Tanaka, Miki Harigai, Hidekazu Asano, Tohru Kobayashi, Hidetoshi Kikunaga

International Topical Workshop on Fukushima-Daiichi Decommissioning Research 2024 (FDR2024)  2024.10 

Tokyo Tech's Collaboration Research with TEPCO for Decommissioning (4) Development of Leak Investigation Technology in Reactor Building

Hiroshige Kikura, Gen Endo, Hideharu Takahashi, Nobuhiro Ishii, Shiro Takahira, Kenji Takeshita

International Topical Workshop on Fukushima-Daiichi Decommissioning Research 2024 (FDR2024)  2024.10 

Separation Behavior of Am/Cm on DGA Resin in Hydrochloric Acid Aqueous Solution

Fauzia Hanum Ikhwan, Masahiko Nakase, Kenji Konashi, Chikage Abe, Andri Rahma Putra, Tatsuya Suzuki

GLOBAL2024  2024.10 

Extraction chromatography technology for MA(III) recovery from spent MOX fuel(5)Column operation simulation

Masahiko Nakase, Sou Watanabe, Yuichi Sano, Masayuki Takeuchi

GLOBAL2024  2024.10 

Investigation on Fuel Cycle based on Actinide Management Towards Sustainable Use of Nuclear Energy(2)Analysis of the necessity and usefulness of MA temporary storage technology for the sustainable nuclear fuel cycle

Tomohiro Okamura, Masahiko Nakase, Kenji Takeshita, Takashi Shimada, Yuki Konishi, Keisuke Nishimura, Hitomi Ishida, Tomoo Yamamura

GLOBAL2024  2024.10 

Impact of Metal Fuel Fast Reactor Cycle Implementation on Back-end System including Final Disposal

Kenji Takeshita, Tomohiro Okamura, Masahiko Nakase, Kenji Nishihara, Takumi Abe

GLOBAL2024  2024.10 

Investigation on Fuel Cycle based on Actinide Management Towards Sustainable Use of Nuclear Energy(4)Cycle Concept with ACM

Yuki Konishi, Takashi Shimada, Hitomi Ishida, Keisuke Nishimura, Yasutoshi Ban, Yasuhiro Tsubata, Takumi Sato, Masahiko Nakase, Koki Hibi, Hiromichi Gima, Tomoo Yamamura

GLOBAL2024  2024.10 

Extraction chromatography technology for MA(III) recovery from spent MOX fuel (1) Overview of the research project

Yuichi Sano, Sou Watanabe, Masayuki Takeuchi, Hiroki Fukumoto, Tsuyoshi Arai, Seong-Yun Kim, Masahiko Nakase, Takehiko Tsukahara

GLOBAL2024  2024.10 

Investigation on Fuel Cycle based on Actinide Management Towards Sustainable Use of Nuclear Energy(1)Challenges of LWR fuel cycle and Research Overview

Tomoo Yamamura, Takashi Shimada, Tomohiro Okamura, Masahiko Nakase, Kenji Takeshita, Yuki Konishi, Keisuke Nishimura, Taisuke Tsukamoto, Hitomi Ishida, Yasutoshi Ban, Takumi Sato, Yasuhiro Tsubata

GLOBAL2024  2024.10 

Investigation on Fuel Cycle based on Actinide Management Towards Sustainable Use of Nuclear Energy(3)Policies of Actinides Management

Takashi Shimada, Tomohiro Okamura, Masahiko Nakase, Kenji Takeshita, Ryo Takahashi, Hitomi Ishida, Yuki Konishi, Keisuke Nishimura, Koki Hibi, Hiromichi Gima, Tomoo Yamamura

GLOBAL2024  2024.10 

インベントリを起点としたガラス固化体廃棄物含有率の最適化アプローチ

Tomohiro Okamura, Takahiro Nishihara, Masahiko Nakase

2024.9 

[Invited] Chemical Experiments and Chemoinformatic Approach in Actinide Separation Chemistry Invited

Masahiko Nakase

Institute for Materials Research, Tohoku University Oarai / Alpha Joint meeting  2024.9 

－

Kenji Shirasaki, Masahiko Nakase

The 68th Symposium of the Radiochemistry Society of Japan (2024)  2024.9 

Evaluation of extraction behavior of 228Ac by D2EHPA under pH region

Takuto Miyawaki, Kenji Shirasaki, Masahiko Nakase

The 68th Symposium of the Radiochemistry Society of Japan (2024)  2024.9 

Feasibility Study of Integral Molten Chloride Salt Fast Reactor (IV)(4) Consideration of waste disposal methods

Masahiko Nakase

Atomic Energy Society of Japan 2024 Autumn Meeting  2024.9 

"Impacts of the Introduction of Metal-Fuel Fast Reactor Cycle on the Sustainable Use of Nuclear Energy"

Kenji Takeshita, Tomohiro Okamura, Masahiko Nakase

Atomic Energy Society of Japan 2024 Autumn Meeting  2024.9 

Investigation on Fuel Cycle based on Actinide Management Towards Sustainable Use of Nuclear Energy(2)Analysis of the necessity and usefulness of MA temporary storage technology for the sustainable nuclear fuel cycle

Tomohiro Okamura, Masahiko Nakase, Kenji Takeshita, Takashi Shimada, Hirotaka Konishi, Keisuke Nishimura, Hitomi Ishida, Tomoo Yamamura

Atomic Energy Society of Japan 2024 Autumn Meeting  2024.9 

Current Status and Next Development of Fuel Cycle Analysis Technique for the Future Scenarios(5)Considerations for Benchmark of Future Nuclear Fuel Cycle Technologies

Masahiko Nakase

Atomic Energy Society of Japan 2024 Autumn Meeting  2024.9 

Investigation on Fuel Cycle based on Actinide Management Towards Sustainable Use of Nuclear Energy(1)Challenges of LWR fuel cycle and Research Overview

Tomoo Yamamura, Takashi Shimada, Tomohiro Okamura, Masahiko Nakase, Kenji Takeshita, Hirotaka Konishi, Keisuke Nishimura, Taisuke Tsukamoto, Hitomi Ishida, Yasutoshi Ban

Atomic Energy Society of Japan 2024 Autumn Meeting  2024.9 

Development of Detailed Japanese Models for Quantitative Evaluation in Nuclear Power Generation Scenarios

Taiga Suzuki, Tomohiro Okamura, Masahiko Nakase, Kenji Nishihara, Takumi Abe

Atomic Energy Society of Japan 2024 Autumn Meeting  2024.9 

Feasibility Study of Integral Molten Chloride Salt Fast Reactor (IV)(1) Outline of the Study

Michio Yamawaki, Hiroyasu Mochizuki, Chikako Ishizuka, Masahiko Nakase, Koshi Mitachi, Yoichiro Shimazu, Yuji Arita, Tadafumi Koyama, Kenichi Fukumoto, Takuya Goto

Atomic Energy Society of Japan 2024 Autumn Meeting  2024.9 

Development of integrated actinide chemistry application, AACE, for acceleration of actinide chemistry experiments

Masahiko Nakase, Takahiro Nishihara, Fauzia Hanum Ikhwan, Tomohiro Okamura, Kota Matsui

6th International Conference on Nuclear Chemistry for Sustainable Fuel Cycles (Atalante2024)  2024.9 

Research on Sustainable Nuclear Energy Use with Actinide Management: Scenario Study on High-Level Waste Generation with MA Separation and Intermediate Storage Technology Implementation

Tomohiro Okamura, Ryo Takahashi, Takashi Shimada, Masahiko Nakase, Tomoo Yamamura, Kenji Takeshita

6th International Conference on Nuclear Chemistry for Sustainable Fuel Cycles (Atalante2024)  2024.9 

[Invited] Optimizing the Fuel Cycle and Advancing Deep Geological Repositories with Digital Twins and Innovative Technologies Invited

Masahiko Nakase, Tomohiro Okamura, Takahiro Nishihara

Seventh International Conference on Geological Repositories (ICGR-7)  2024.5 

Fireside Chat : 学生へのメッセージ

Masahiko Nakase, Osama BAIG

The 58th JAIF Annual Conference  2024.4 

Exploration of Fluorinated Super-Solvents for Minor Actinide Extraction (7) Solvent extraction behavior of Am and RE with fluorinated solvents and mixed solvents

Fauzia Hanum Ikhwan, Masahiko Nakase, Tomohiro Okamura, Takahiro Nishihara, Takashi Kajitani, Chihiro Tabata, Tohru Kobayashi, Kota Matsui, Ryo Takahashi, Hitomi Ishida

Atomic Energy Society of Japan 2024 Spring Annual Meeting  2024.3 

核燃料サイクルのデジタライゼーション NEUChain：諸量データ駆動型アプローチの可能性

Tomohiro Okamura, Takahiro Nishihara, Masahiko Nakase, Takumi Abe, Kenji Nishihara

Atomic Energy Society of Japan 2024 Spring Annual Meeting  2024.3 

Heバブリング二相流を考慮した溶融塩高速炉負荷追従解析

Hiroyasu Mochizuki, Masahiko Nakase

Atomic Energy Society of Japan 2024 Spring Annual Meeting  2024.3 

MA抽出のためのフッ素系スーパー溶媒の探査(6)３か年のプロジェクト統括

Masahiko Nakase, Fauzia Hanum Ikhwan, Tomohiro Okamura, Takahiro Nishihara, Takashi Kajitani, Chihiro Tabata, Toru Kobayashi, Kota Matsui, Ryo Takahashi, Hitomi Ishida

Atomic Energy Society of Japan 2024 Spring Annual Meeting  2024.3 

MA抽出のためのフッ素系スーパー溶媒の探査(8)人間介在型機械学習によるアクチノイド化学研究の加速

Takahiro Nishihara, Masahiko Nakase, Takashi Kajitani, Tomohiro Okamura, Fauzia Hanum Ikhwan, Chihiro Tabata, Toru Kobayashi, Kota Matsui, Hitomi Ishida, Ryo Takahashi

Atomic Energy Society of Japan 2024 Spring Annual Meeting  2024.3 

金属燃料高速炉サイクルの諸量評価研究

Kenji Takeshita, Tomohiro Okamura, Masahiko Nakase, Kenji Nishihara, Takumi Abe

Atomic Energy Society of Japan 2024 Spring Annual Meeting  2024.3 

放射光XAFSを用いたアルキルジアミドアミン吸着材の分離性能評価

Kazuki Minowa, Sou Watanabe, Yasutoshi Ban, Youko Takahatake, Masahiko Nakase, Haruaki Matsuura

Atomic Energy Society of Japan 2024 Spring Annual Meeting  2024.3 

Development of Detailed Japanese Models for Quantitative Evaluation in Nuclear Power Generation Scenarios

Taiga Suzuki, Tomohiro Okamura, Tomomi Furuya, Takumi Abe, Masahiko Nakase, Kenji Nishihara

Atomic Energy Society of Japan 2024 Spring Annual Meeting  2024.3 

諸量評価コードの検証と妥当性確認

Kenji Nishihara, Kenji Takeshita, Takashi Shimada, Masahiko Nakase

Atomic Energy Society of Japan 2024 Spring Annual Meeting  2024.3 

Development of solidification technology of phosphate ceramics waste forms of ALPS sediment wastes

Kenji Takeshita, Katsumi Yoshida, Masahiko Nakase, Shintaro Yasui, Hanna Hubarevich

2024.3 

Development of separation process by extraction chromatography using alkyl diamide amine and investigation on separation mechanism by soft and hard X-ray XAFS

Kazuki Minowa, Koya Yamazaki, Sou Watanabe, Masahiko Nakase, Youko Takahatake, Yasutoshi Ban, Haruaki Matsuura

The 15th Student Research Presentation of Atomic Energy Society of Japan Kanto-Koetsu Branch : Nuclear and Radiation Field  2024.3 

Introduction on the project, "Investigation on Fuel Cycle based on Actinide Management Towards Sustainable Use of Nuclear Energy"

Takashi Shimada, Tomoo Yamamura, Masahiko Nakase, Yasutoshi Ban, Masanori Shikata

2024.3 

Evaluation of separation performance of alkyl diamidoamine adsorbent using hard and soft X-rays

Kazuki Minowa, Sou Watanabe, Masahiko Nakase, Youko Takahatake, Yasutoshi Ban, Haruaki Matsuura

2023 Quantum Beam Science Festa: 15th MLF Symposium, 41st PF Symposium  2024.3 

PGM separation research in the nuclear field

Masahiko Nakase

Furuya Metal - Tokyo Tech - JAEA Technical Exchange Meeting  2024.2 

Research on the introduction of ships equipped with molten salt fast chloride reactors towards a zero-carbon society

Masahiko Nakase

The 9th ZC Colloquium in FY2023: Trends in Nuclear Future Scenario Studies and Development of Analysis Methods, The 2nd NMB Workshop: Nuclear Future Scenario Studies  2024.2 

[keynote speech] Digital Twin Project for Innovative Nuclear Energy System-Application to Radioactive Waste Management-

Tomohiro Okamura, Takahiro Nishihara, Masahiko Nakase

Organized by OECD NEA：Working Party on Information, Data, and Knowledge Management (WP-IDKM) general meeting  2024.2