Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

DOI： 10.1007/s10967-025-10598-x

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Other Link： https://link.springer.com/article/10.1007/s10967-025-10598-x/fulltext.html

Authorship：Lead author   Publishing type：Research paper (scientific journal)   Publisher：The Atomic Energy Society of Japan  

DOI： 10.15669/pnst.7.60

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Authorship：Lead author   Language：English  

Rapid and precise radioisotope identification in the scene of nuclear detection and nuclear security incidents is one of the challenging issues for the prompt response on the detection alarm or the incidents. A radioisotope identification algorithm using a deep artificial neural network model applicable to handheld gamma-ray detectors has been proposed in the present paper. The proposed algorithm automatically identifies gamma-emitting radioisotopes based on the count contribution ratio (CCR) from each of them estimated by the deep artificial neural network model trained by simulated gamma-ray spectra. The automated radioisotope identification algorithm can support first responders of nuclear detection and nuclear security incidents without sufficient experience and knowledge in radiation measurement. The authors tested the performance of the proposed algorithm using two different types of deep artificial neural network models in application to handheld detectors having high or low energy resolution. The proposed algorithm showed high performance in identifying artificial radioisotopes for actually measured gamma-ray spectra. It was also confirmed that the algorithm is applicable to identifying $^{235}$U and automated uranium categorization by analyzing estimated CCRs by the deep artificial neural network models. The authors also com-pared the performance of the proposed algorithm with a conventional radioisotope identification method and discussed promising ways to improve the performance of the algorithm using the deep artificial neural network.

DOI： 10.3769/radioisotopes.72.121

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Publishing type：Research paper (scientific journal)   Publisher：Springer Science and Business Media LLC  

Abstract

Trace impurity patterns are important nuclear forensic signatures in uranium ore concentrates (UOCs) and Certified Reference Materials (CRMs) are used to validate the analysis methods employed by end users. Herein, we discuss the certification campaign for three new UOC CRMs from the National Research Council Canada: UCLO-1 (https://doi.org/10.4224/crm.2020.uclo-1), UCHI-1 (https://doi.org/10.4224/crm.2020.uchi-1), and UPER-1 (https://doi.org/10.4224/crm.2020.uper-1). This study involved 15 laboratories from 10 countries, using sector-field and (triple) quadrupole inductively-coupled plasma mass spectrometry to analyze 64 trace element impurities. We discuss the importance of the acids used for sample digestion, difficulties analyzing in a high uranium matrix, and data combination and uncertainty evaluation for this large dataset.

DOI： 10.1007/s10967-022-08446-3

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Other Link： https://link.springer.com/article/10.1007/s10967-022-08446-3/fulltext.html

Publishing type：Research paper (scientific journal)   Publisher：Wiley  

In this study, data from thirteen laboratories from around the world are presented for a successful certification of uranium isotope ratios in uranium ore concentrate (UOC) certified reference materials from the National Research Council Canada. Different mass spectrometric measurement principles (including SF‐ICP‐MS, quadruple ICP‐MS, TIMS, MC‐ICP‐MS, SIMS and AMS) and measurement procedures were employed. In general, data from all sources exhibit good consistency with TIMS and MC‐ICP‐MS showing superior performance. The three candidate UOC CRMs (UCLO‐1, UCHI‐1 and UPER‐1) have natural uranium isotope ratios with certified values of 0.5304(7) × 10⁻⁴, 0.5475(2) × 10⁻⁴ and 0.5361(4) × 10⁻⁴ for n(²³⁴U)/n(²³⁸U) and 0.007 2563(13), 0.007 2563(10) and 0.007 2542(11) for n(²³⁵U)/n(²³⁸U), respectively, with expanded uncertainty (k = 2) applicable to the last digit of the value given in the parentheses. Information values for n(²³⁶U)/n(²³⁸U) in these three CRMs, measured by AMS, are also provided: 10 × 10⁻¹², 200 × 10⁻¹² and 22 × 10⁻¹². The uncertainties of the proposed certified values of uranium isotope ratios in UOC CRMs are superior to available reference materials, and the values of n(²³⁴U)/n(²³⁸U) and n(²³⁶U)/n(²³⁸U) show significant variation among the three CRMs.

DOI： 10.1111/ggr.12409

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Other Link： https://onlinelibrary.wiley.com/doi/full-xml/10.1111/ggr.12409

Authorship：Lead author   Publishing type：Research paper (scientific journal)   Publisher：The Atomic Energy Society of Japan  

DOI： 10.15669/pnst.5.188

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Authorship：Lead author   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

DOI： 10.1016/j.egypro.2017.09.433

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Authorship：Lead author   Language：English  

Japan Atomic Energy Agency (JAEA) has initiated an R\&D project on nuclear forensics technology from 2011. This project includes development of prototype national nuclear forensics library (NNFL), and the JAEA attended to the first international table top exercise of NNFL "Galaxy Serpent" held by ITWG as a part of our NNFL development project. In this paper, outline and experiences of the JAEA investigation in the table top exercise are described and the lessons learned from the experiences were discussed. Brief current status of the NNFL development project at JAEA was also introduced in the present paper. The lessons from the experiences in the exercise will be effectively applied to the development of NNFL at JAEA.

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Authorship：Lead author   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

DOI： 10.1016/j.anucene.2011.10.008

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J-GLOBAL

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Language：English  

Development of radiation detector systems are essential to prevent nuclear terrorism in major public events. They are required to find nuclear and radioactive materials effectively at gates and in event sites. Overview of such detector system development program is given. (1) Broad area survey system: Broad area survey measurements are usually implemented to ensure radioactive materials, such as dirty bomb, are not placed in a site. To carry out the surveillance efficiently, combination of radioactive detector and mapping system is required. We are, therefore, developing a gamma-ray detector with a GPS system and a simultaneous localization and mapping (SLAM) system to cover outdoor and indoor surveillance. A secure low-power and long-range network system using Wi-SUN FAN is being tested. It would be beneficial to coordinate detector systems, to correct information. They are monitored in an operation center. An artificial intelligent (AI) program is also under development to eliminate false alert from an obtained gamma-ray spectrum. A compact Compton camera would be applicable to figure out the location of hidden radioactive materials. A system with GAGG crystals is being tested. (2) Neutron detector system using plastic scintillation detectors: Neutron detection would be useful to find out nuclear materials and neutron sources shielded in heavy-element materials. A plastic scintillation detector is chosen as a detector material, because that is low-cost, sensitive to fast neutrons, easy to handle, and thus easy to be deployed. Gamma-ray background can be reduced by employing a Pulse Shape Discrimination (PSD) technique to enhance the sensitivity to fast neutrons. Developments of systems using PSD plastic scintillation detectors are in progress.

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Language：Japanese  

J-GLOBAL

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J-GLOBAL

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J-GLOBAL

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Language：English  

In Japan, national nuclear forensics capability building efforts mainly based on research and development have been conducted since 2010. Most of that work is undertaken at the Integrated Support Center for Nuclear Non-proliferation and Nuclear Security (ISCN) at the JAEA in close cooperation with the National Research Institute of Police Science (NRIPS). The JAEA is Japan's only comprehensive nuclear research institution. The NRIPS is an agency attached to the national police organization. These institutes from different research backgrounds cooperate on activities such as information exchange and joint research projects. The joint research results improve national capabilities and enhance international nuclear security. In this article, nuclear forensics capability building efforts by ISCN has been introduced.

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Language：English  

Nuclear forensics is a technical measure to analyse and collate samples of illegally used nuclear materials, etc., to clarify their origins, routes, etc. and contribute to criminal identifications. Close collaboration with police and judicial organizations is essential. The national response framework is being built up with international cooperation. Discussions on promoting technical capability and regional cooperation are presented.

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Language：Japanese  

Nuclear Forensics capability has been developed under the international collaborations. For its effective function, technical development in analysis of seized nuclear materials as well as the institutional development in comprehensive response framework are required under individual national responsibility. In order to keep the "chain of custody" in the proper operation of sample collection at the event scene, radiological analysis at the laboratory, storage of the samples, and further inspection and trial, close cooperation and information sharing between relevant organisations are essential. IAEA issues the Implementing Guide to provide the model action plan and assists individual national development. International cooperation for the technical improvement and awareness cultivation is promoted. Examples in such national developments will be introduced and prospective technical/institutional prerequisite for nuclear forensics response framework will be studied.

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Language：Japanese  

CiNii Books

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Language：English  

Japan Atomic Energy Agency has started R\&D on nuclear forensics technology since Japanese Fiscal Year of 2011. One of main topics of the R\&D project is to develop national nuclear forensics library (NNFL) which consists of database and evaluation methodology for interpretation of the attributions of nuclear and other radioactive materials. JAEA has continued to develop a prototype system of NNFL based on data of the nuclear and other radioactive materials that JAEA has possessed in the past research activities. A development of prototype nuclear material database (NMDB) was almost completed with its basic data handling system. Data compiling on the JAEA NMDB has been continued. JAEA also participated in the virtual table top exercise on NNFL named Galaxy Serpent and has continued to study attribution evaluation methodologies using the data in a NNFL. In the next step of the NNFL project, it is planned to carry out the development items; prototype of radioactive materials database (RMDB), image evaluation tool for microscope images, multivariate analysis tools for seizure analysis and knowledge accumulation system for nuclear forensics analysis. This paper presents the current status and future prospects on the prototype NNFL development at JAEA.

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Language：Japanese   Publishing type：Internal/External technical report, pre-print, etc.  

Nuclear forensics is the analysis of intercepted illicit nuclear or radioactive material and any associated material to provide evidence for nuclear attribution by determining origin, history, transit routes and purpose involving such material. Nuclear forensics activity includes sampling of the illicit material, analysis of the samples and evaluation of the attribution by comparing the analyzed data with database or numerical simulation. Because the nuclear forensics technologies specify the origin of the nuclear materials used illegal dealings or nuclear terrorism, it becomes possible to identify and indict offenders, hence to enhance deterrent effect against such terrorism. Worldwide network on nuclear forensics can contribute to strengthen global nuclear security regime. In this paper, the results of research and development of fundamental nuclear forensics technologies performed in Japan Atomic Energy Agency during the fiscal term of 2011-2013 were reported.

DOI： 10.11484/jaea-technology-2015-001

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Language：English  

In 2010, the Japan Government issued the national statement at Nuclear Security Summit (Washington D.C., USA) to develop technologies related to measurement and detection of nuclear materials for nuclear forensics within three-year timeframe, and to share the products with the international community in order to contribute to strengthening the nuclear security system. In response to this statement, JAEA that possesses sufficient technical capabilities to fulfil this nuclear forensics mission has started a nuclear forensics technology development project since JFY 2011. This paper will present the progress of the development project during JFY 2011 to 2013. This project includes the developments of analytical technologies such as isotope and impurity measurements, morphology analysis, age determination technique, and the prototype of national nuclear forensics library (NNFL). Some future prospects of this project will be also presented in this paper.

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Language：Japanese  

Japan Atomic Energy Agency (JAEA) has initiated R\&D project on nuclear forensics technology such as analytical technologies towards the establishment of nuclear forensics capabilities in Japan. National Nuclear Forensics Library (NNFL) is one of the fundamental nuclear forensics capabilities and a prototype NNFL has been developed as one R\&D topic of the project at JAEA. Main objective of a NNFL is to determine whether a seized nuclear or other radioactive material from nuclear security event (e.g. illicit trafficking) is originated from a country or not. Analytical data of the seized material are compared with the existing materials populated in a NNFL, and its attributions such as origin and history will be identified. This paper describes the current status and future plan on the development of prototype NNFL. The outline and the results of the participation in an international table top exercise on NNFL named "Galaxy Serpent" were also reported in the present paper.

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Language：English  

Japan Atomic Energy Agency (JAEA) that possesses sufficient analytical capabilities to fulfil the mission of nuclear forensics technology development has started R\&D project from JFY 2011. The R\&D of the nuclear forensics technology at JAEA covers the development of analytical technology such as isotope and impurity measurements, morphology analysis, age determination technique, and proto-type of national nuclear forensics library. Each topic of the R\&D has been promoted under the international cooperation with US-DOE. This paper will present the present status and brief results of the R\&D project on nuclear forensics analytical technology and nuclear forensics library at JAEA. Some future plan of the R\&D such as attribute identification of Japanese nuclear materials, data populating plan for existing nuclear materials data in JAEA fuel cycle facilities will be also introduced in the presentation.

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J-GLOBAL

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J-GLOBAL

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Event date： 2025.1

Language：English  

Country：Japan  

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Event date： 2024.9

Language：Japanese  

Country：Japan  

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Event date： 2024.9

Language：Japanese  

Country：Japan  

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Event date： 2024.9

Language：Japanese  

Country：Japan  

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Event date： 2024.5

Language：English  

Venue：Vienna   Country：Austria  

Technical capability-building efforts in nuclear forensics in Japan have been conducted since 2011, following a national statement at the 1st Nuclear Security Summit. Most of those works have been undertaken at the Integrated Support Center for Nuclear Non-proliferation and Nuclear Security (ISCN) of the JAEA in cooperation with other competent authorities. Some of these works have been carried out in cooperation with international partners such as the U.S. Department of Energy and EC Joint Research Center, and the ISCN has contributed to developing and enhancing the technical capabilities by sharing its achievements. Recent efforts by the ISCN have been mainly based on the needs of first responders and investigators and aim to be technical solutions for the nuclear forensics process covering the entire spectrum from crime scene investigations to laboratory analysis and interpretation, which include post-dispersion nuclear forensics, novel signature development, and application of emerging technologies like artificial intelligence. These outcomes are expected to contribute not only to the future laboratory network, including domestic human resource development, but also to capacity building in the international community.

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Event date： 2024.3

Language：Japanese  

Country：Japan  

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Event date： 2023.11

Language：Japanese  

Country：Japan  

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Event date： 2023.10

Language：English  

Venue：Vienna   Country：Austria  

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Event date： 2023.9

Language：Japanese  

Country：Japan  

Collaboration of JAEA and Kanazawa University has verified the analysis accuracy for the establishment of nuclear forensics uranium dating method by alpha-ray spectrometry. In the chemical separation, uranium standards are used to quantify Th-230 produced. In this case, the target for the existence ratio with U-234 is about 1/10000. Therefore, a recovery correction with a tracer was performed and the results were compared with those obtained by a mass spectrometer. In addition, we examined technical issues that contribute to improving analysis accuracy and speeding up analysis time.

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Event date： 2023.8

Language：English  

Venue：Vienna   Country：Austria  

Advancement of the ability of watching nuclear explosive devices or radiological dispersal devices (so-called dirty bomb) in a public space would minimize the risk of nuclear terrorism. The JAEA is conducting a development of radiation detector systems equipped with peripheral technologies such as localization, networking, and remote controlling. An artificial intelligent (AI) program is also under development to eliminate false alert from an obtained gamma-ray spectrum. A pulse-shape-discrimination capable fast neutron detector system is being tested to perform effective neutron source survey. The status of the developments is presented.

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Event date： 2023.5

Language：English  

Venue：Budapest   Country：Hungary  

Nuclear forensic analysis is a technical means to determine the origin and intended use of nuclear and other radioactive materials by characterizing them and by the interpretation of the material characteristics called as nuclear forensics signatures. Many analytical approaches including destructive and non- destructive analysis for the material characterization, as well as the statistical analysis and expertise for the interpretation can contribute as the effective means for determination of the materials of interests in nuclear forensic analysis. Application of a machine learning model, represented by a convolutional neural network (CNN) model, to electron microscopic image analysis has been proposed as one of the novel approaches for the determination of uranium materials in nuclear forensics application. In this study, application of deep metric learning model based on CNN to microscope images analysis for the determination of UOC samples was proposed and discussed.

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Event date： 2023.5

Language：English  

Venue：Budapest   Country：Hungary  

The Integrated Support Center for Nuclear Nonproliferation and Nuclear Security (ISCN) of the JAEA is developing technologies for nuclear forensics to identify the origin and intended use of nuclear and radioactive materials. The Nuclear Forensics International Technical Working Group (ITWG) regularly holds the Collaborative Materials Exercise (CMX) to share the experience on nuclear forensics analysis and to improve analytical methods in the international community. The ISCN participated in the 7th exercise (CMX-7) this time. This paper discusses the experience of the ISCN during the CMX-7 including the results of laboratory analysis and nuclear forensics interpretation, as well as future challenges for laboratory capability at the ISCN. In the CMX-7, under the hypothetical case scenario (illegal transferring of nuclear materials), uranium samples and other conventional forensics evidence were provided for the exercise. During the exercise, participants reported the analytical results according to the timeframes recommended by the Nuclear Forensics Guidelines of the IAEA (24 hours, 1 week, and 2 months from sample receipt). The ISCN reported the physical characteristics and the results NDA analysis on the uranium samples at the first two timeframes, and the results of mass spectrometry with the data interpretation as the 2 months report. The results of uranium isotope ratio and trace elements measurements were exceedingly good, but the results of age dating were significantly deviate from the overall average. Reducing the time for destructive analysis that allows timely provisions of the results, as well as the improvement of the confidence in age dating are future tasks for the nuclear forensics analysis of the ISCN laboratory.

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Event date： 2023.3

Language：Japanese  

Country：Japan  

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Event date： 2023.3

Language：Japanese  

Country：Japan  

The Integrated Support Center for Nuclear Nonproliferation and Nuclear Security (ISCN) of the Japan Atomic Energy Agency (JAEA) is developing technologies for nuclear forensics to identify the origin and intended use of nuclear and radioactive materials. In order to share the experience on nuclear forensics analysis and to improve analytical techniques in the international community, the Nuclear Forensics International Technical Working Group (ITWG) regularly holds the Collaborative Materials Exercise (CMX). The ISCN participated in the 7th exercise (CMX-7) this time. This paper reports the experience of the exercise, and discusses nuclear forensics analytical capability of the ISCN based on the review of the exercise.

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Event date： 2022.4

Language：English  

Venue：Vienna   Country：Austria  

Nuclear and other radioactive materials outside of regulatory control (MORC) can trigger nuclear security events with severe environmental and economic consequences. In order to deal with such threats, it is necessary to strengthen international nuclear security measures, including nuclear forensics. The development of nuclear forensics technology in Japan is led by the Integrated Support Center for Nuclear Non-proliferation and Nuclear Security (ISCN) of the Japan Atomic Energy agency (JAEA) and is being carried out under domestic and international cooperation. By actively disseminating the results of its technology development to the domestic and international communities, ISCN is contributing to the improvement of nuclear forensics capabilities not only in Japan but also internationally. The present paper has discussed the status of the nuclear forensic laboratory capability in the ISCN.

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Event date： 2022.4

Language：English  

Venue：Vienna   Country：Austria  

Any nuclear security event involving nuclear and other radioactive materials outside of regulatory control (MORC) has the potential to have severe consequences for public health, the environment, the economy and society. Each state has a responsibility to develop national nuclear security measures to respond to such an event, and this includes a nuclear forensics capability. In Japan, national nuclear forensics capability building efforts mainly based on research and development have been conducted. Most of that work is undertaken at the Integrated Support Center for Nuclear Non-proliferation and Nuclear Security (ISCN) of the JAEA in close cooperation with other competent authorities. The ISCN has made increased contributions to the enhancement of international nuclear security by establishing technical capabilities in nuclear forensics and sharing the achievements with the international community. In this paper, current status and future prospects on nuclear forensics capability building and technology development by the ISCN has been presented.

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Event date： 2022.3

Language：Japanese  

Country：Japan  

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Event date： 2022.3

Language：Japanese  

Country：Japan  

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Event date： 2021.9

Language：Japanese  

Country：Japan  

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Event date： 2021.9

Language：Japanese  

Country：Japan  

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Event date： 2021.3

Language：Japanese  

Country：Japan  

Integrated Support Center for Nuclear Nonproliferation and Nuclear Security (ISCN) of JAEA has been developing nuclear forensics techniques to identify the origin and intended use of nuclear and radioactive materials, and also conducting uranium age-dating as part of this development. Uranium age-dating at ISCN can estimate when the uranium was refined from its raw material by measuring the $^{230}$Th/$^{234}$ ratio of the uranium sample. In this paper, we report the results of uranium age-dating on uranium standards to verify the applicability of the age-dating method.

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Event date： 2021.3

Language：Japanese  

Country：Japan  

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Event date： 2020.11

Language：Japanese  

Country：Japan  

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Event date： 2020.9

Language：Japanese  

Country：Japan  

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Event date： 2020.9

Language：Japanese  

Country：Japan  

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Event date： 2020.3

Language：Japanese  

Country：Japan  

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Event date： 2020.3

Language：Japanese  

Country：Japan  

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Event date： 2020.2

Language：English  

Venue：Vienna   Country：Austria  

The presentation focuses on ISCN's methodology for needs analysis and curriculum development using the existing nuclear energy cooperation framework. The method applied to develop its nuclear forensics training course.

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Event date： 2020.2

Language：English  

Venue：Vienna   Country：Austria  

Japan Atomic Energy Agency (JAEA) and National Research Institute of Police Science (NRIPS) have been working on technology development to develop the capabilities for responding nuclear security event involving nuclear and other radioactive materials out of regulatory control (MORC) in Japan. Those institutes have information exchange and research cooperation for more effective development and improvement of the national capabilities and strengthening international nuclear security. In this paper, current status and future prospects on technology development by the two institutes for contributing to the response capabilities for nuclear security event involving MORC.

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Event date： 2020.2

Language：English  

Venue：Vienna   Country：Austria  

In response to National statement at 1st Nuclear Security Summit, Integrated Support Center for Nuclear Nonproliferation and Nuclear Security (ISCN) was established in December 2010 in Japan Atomic Energy Agency (JAEA) which is Japan's sole comprehensive research and development institute in the field of nuclear energy. Under domestic and international collaborations, ISCN has been carrying out R\&Ds on innovative technology for measurement and detection of nuclear materials and nuclear forensics technical capabilities since Japanese Fiscal Year of 2011. This paper summarized the 10year-efforts on technology development to strengthen nuclear security.

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Event date： 2019.11

Language：Japanese  

Country：Japan  

A nuclear security event involving nuclear and other radioactive materials out of regulatory control (MORC) has potential severe consequence on public health, environments, economics and society. When a nuclear security event caused by MORC would be occurred, it is essential to identify the hazardous substances such as nuclear materials and radioisotopes as the initial response activity at the event scene. In this study, automated radioisotope identification algorism by Machine-Learning (ML) based gamma-ray spectrum analysis using handheld type detectors have been developed. The training data set for ML-based algorism has been developed based on detector simulation and the usability of the simulation-based data set for ML model training to perform radioisotope identification has been discussed.

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Event date： 2019.4

Language：English  

Venue：Vienna   Country：Austria  

ISCN of JAEA has carried out R\&Ds on nuclear forensics technical capabilities since Japanese Fiscal Year of 2011 and ISCN has also contributed the capacity building of nuclear forensics. ISCN organized a regional training course on nuclear forensics in January 2019. The contents of the training course was developed based on the questionnaire about nuclear forensics capability building provided for Asian countries in 2017, which was one of contribution in Forum for Nuclear Cooperation in Asia (FNCA). The training course provided table top exercises regarding laboratory and interpretation that enables for participants to obtain more practical knowledge on the topics and share experiences of each country. In the present paper, the results of the nuclear forensics questionnare provided for Asian countries are introduced and the experience of the regional training course on nuclear foreniscs organized by ISCN is reported.

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Event date： 2019.4

Language：English  

Venue：Vienna   Country：Austria  

In accordance with Japan's national statement at the Washington Nuclear Security Summit (2010), development of technology related to measurement and detection of nuclear material and nuclear forensics has been initiated in Integrated Support Center for Nuclear Nonproliferation and Nuclear Security (ISCN) of Japan Atomic Energy Agency (JAEA) based on international cooperation for the contribution to the identification of origin and history of nuclear and other radioactive materials out of regulatory control (MORC) or materials used in terrorist attacks. Japan has made increased contributions to the international community by establishing these technologies with more precise and accurate capabilities in detection and forensics and sharing the fruits of these new technologies with the international community. In this paper, current status and future prospects on nuclear forensics technology development in ISCN-JAEA are discussed.

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Event date： 2019.3

Language：Japanese  

Country：Japan  

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Event date： 2018.3

Language：Japanese  

Country：Japan  

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Event date： 2018.3

Language：Japanese  

Country：Japan  

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Event date： 2017.9

Language：English  

Venue：Jeju   Country：Korea, Democratic People's Republic of  

Japan Atomic Energy Agency (JAEA) has been initiated the R\&Ds on nuclear forensics technical capability buildings including developments of measurement methodologies and prototype nuclear forensics library (NFL) since 2011 JFY. The important objective of nuclear forensic analysis is to characterize, categorize, and discriminate nuclear or radioactive materials to identify its origin and history. In this paper, nuclear forensics signatures to identify nuclear materials have been discussed for nuclear source material and irradiated nuclear fuels.

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Event date： 2017.9

Language：Japanese  

Country：Japan  

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Event date： 2017.9

Language：Japanese  

Country：Japan  

Nuclear forensics is effective measure for strengthening nuclear security through the analysis of origin and characteristics of nuclear materials or radio-isotopes collected at the crime scene inspections. In the development of nuclear forensics laboratory/library, "Chain of Custody" should be kept in mind on the view point of juridical process. Each nation should develop own national response plan to stipulate the framework for integrated nuclear forensics activities. Good practices for stipulating national frameworks for nuclear forensics are investigated in advancing nations such as US, EU and Canada. Issues and measures are proposed aiming at improving its framework.

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Event date： 2017.9

Language：Japanese  

Country：Japan  

In the SS expert committee, the interface between safety and security has been investigated since a couple of years ago. In this presentation, the simulator concept for sabotage protection training considering plant safety simulator as well as sabotage damage sequence will be reported.

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Event date： 2017.3

Language：Japanese  

Country：Japan  

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Event date： 2016.12

Language：English  

Venue：Vienna   Country：Austria  

Japan Atomic Energy Agency that possesses sufficient analytical capabilities to fulfil this nuclear forensics mission has started R\&D on nuclear forensics technical capabilities since Japanese Fiscal Year of 2011. This R\&D activity includes development of prototype nuclear forensics library (NFL) for future national NFL (NNFL), including discriminant analysis methodologies as a function of the NFL. In the present paper, current status and future plan of the prototyoe library in JAEA including the development of discriminant analysis methodologies will be presented.

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Event date： 2016.9

Language：Japanese  

Country：Japan  

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Event date： 2016.3

Language：Japanese  

Country：Japan  

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Event date： 2015.9

Language：Japanese  

Country：Japan  

Nuclear forensics is the analysis of intercepted illicit nuclear or radioactive material and any associated material to provide evidence for nuclear attribution by determining origin, history, transit routes and purpose involving such material. Because the nuclear forensics methodologies provide hints of the origin of the nuclear materials used in illegal dealings or nuclear terrorism, it contributes to identify and indict offenders, hence to enhance deterrent effect against such terrorism. In the 59th Symposium on Radiochemistry, the results of research and development of fundamental nuclear forensics technologies (analysis of isotopic composition, impurity analysis, age dating of nuclear material, particle shape analysis by electron microscope, and nuclear forensics library) performed in Japan Atomic Energy Agency are reported. Japan's capability and the role of radiochemistry on nuclear forensics are also discussed in the Symposium.

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Event date： 2014.9

Language：Japanese  

Country：Japan  

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Event date： 2014.9

Language：Japanese  

Country：Japan  

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Event date： 2014.3

Language：Japanese  

Country：Japan  

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Event date： 2013.9

Language：Japanese  

Country：Japan  

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Event date： 2013.7

Language：English  

Venue：Vienna   Country：Austria  

Japan Atomic Energy Agency has been initiated R\&D project on nuclear forensics technology from 2011 JFY. In this presentation, the current status and future plan of the R\&D on nuclear forensics technology was presented.

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Event date： 2013.3

Language：Japanese  

Country：Japan  

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Event date： 2012.10

Language：Japanese  

Country：Japan  

The national statement made by the Japan Government at 2010 Nuclear Security Summit (Washington D.C., U.S.A.) was to develop its nuclear forensics detection and analysis technologies in a three-year period and to share them with the international community to contribute to strengthening the nuclear security regime. The Japan Atomic Energy Agency, the organization that possesses analytical capabilities with the potential to fulfill this nuclear forensics mission, started R\&D on nuclear forensics technology from JFY 2011. The main areas of development are isotopic ratio analysis, impurity analysis, uranium age determination, etc. The cooperation with US-DOE and EC-JRC were also started to effectively promote the technical development. In the presentation reported will be progress in R\&D to establish nuclear forensics analytical capabilities and international cooperation.

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