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Journal Articles

Nuclear fuel cycle, nuclear non-proliferation and nuclear security in Japan, 3; Challenges on technologies for nuclear non-proliferation/nuclear security and progressing credibility

Mochiji, Toshiro; Senzaki, Masao*; Tamai, Hiroshi; Iwamoto, Tomonori*; Ishiguro, Yuzuru*; Kitade, Yuta; Sato, Heigo*; Suehiro, Rie*; Taniguchi, Tomihiro*; Fukasawa, Tetsuo*; et al.

Enerugi Rebyu, 40(8), p.56 - 57, 2020/07

Strict application of IAEA safeguards and nuclear security should be implemented for Japan's full-scale nuclear fuel cycle. Based on the knowledge and experience of research and development in the nuclear fuel cycle, nuclear material management, the effective and efficient promotion of new technologies should be promoted with scientific and demonstrative measures to strengthen the world's nuclear non-proliferation and nuclear security. Development or sophistication of new technologies, human resource development, and reinforcement of the international framework are future challenge in the international community.

Journal Articles

Nuclear fuel cycle, nuclear non-proliferation and nuclear security in Japan, 2; Significance of sustainable progress in plutonium-thermal policy and R&D of fast reactor

Mochiji, Toshiro; Senzaki, Masao*; Tamai, Hiroshi; Iwamoto, Tomonori*; Ishiguro, Yuzuru*; Kitade, Yuta; Sato, Heigo*; Suehiro, Rie*; Taniguchi, Tomihiro*; Fukasawa, Tetsuo*; et al.

Enerugi Rebyu, 40(7), p.58 - 59, 2020/06

Japan have promoted the peaceful use of plutonium with the nuclear non-proliferation commitment based on IAEA safeguards agreement and Japan-US nuclear cooperation agreement, as well as ensuring transparency of the policy that Japan has no plutonium without purpose of use. In promoting the nuclear fuel cycle, adherence to those measures and maintaining plutonium utilization by means of plutonium-thermal, and a fast reactor cycle to achieve large-scale and long-term energy supply and environmental improvement, therefore, further research and development is essential.

Journal Articles

Chapter 2, Peaceful use of nuclear energy and international relations, 2.3 Multi-national approach of nuclear material management / Chapter 5, Peaceful use of Plutonium and Nuclear Non-Proliferation, 5.1 Japan's policy on plutonium usage

Tamai, Hiroshi

Genshiryoku Heiwa Riyo To Kakufukakusan, Kakusekyuriti; NSA/Commentaries, No.25, p.62 - 68, 2020/06

On the viewpoint of strengthening nuclear non-proliferation and nuclear security, historical background and future issues in multi-national approach of nuclear material management are described.

Journal Articles

Human resource development in nuclear non-proliferation and nuclear security; Education at the University of Tokyo

Tamai, Hiroshi; Demachi, Kazuyuki*

Genshiryoku Heiwa Riyo To Kakufukakusan, Kakusekyuriti; NSA/Commentaries, No.25, p.199 - 202, 2020/06

Education on nuclear non-proliferation and nuclear security in the University of Tokyo is provided at the Department of Nuclear Engineering and Management for master's course graduate students and at the Nuclear Professional School for career experts. In this paper, both the courses are introduced and their education contents on nuclear non-proliferation and nuclear security are briefly described.

Journal Articles

Chapter 2, Peaceful use of nuclear energy and international relations, 2.1 History and Current Status of International System for Nuclear Nonproliferation and Nuclear Security, 2.1.4 Initiatives for Nuclear Security / Chapter 8, Human resource development in nuclear nonproliferation and nuclear security field, 8.1 Importance and Challenges of Human Resource Development, 8.2 JAEA's Human Resource Development Initiatives

Naoi, Yosuke

Genshiryoku Heiwa Riyo To Kakufukakusan, Kakusekyuriti; NSA/Commentaries, No.25, p.14 - 20, 2020/06

The paper presents, on the basis of past cases actually occurred, the current status of nuclear and radiation terrorism threats in the world and summarizes how we should prevent acts of nuclear terrorism, how we should do to strengthen nuclear security worldwide, and what measures international communities are actually going to take. The author also addresses the lack of human resources in the nuclear field, presents roles of personnel to be developed with a career path plan and the human resource development activities in the field of nuclear nonproliferation and nuclear security at ISCN, JAEA.

Journal Articles

Chapter 7, Research and development and international cooperation on nuclear non-proliferation and nuclear security

Tomikawa, Hirofumi; Koizumi, Mitsuo; Tamai, Hiroshi

Genshiryoku Heiwa Riyo To Kakufukakusan, Kakusekyuriti; NSA/Commentaries, No.25, p.167 - 174, 2020/06

Japan's efforts for research and development on nuclear material detection and nuclear forensics and international cooperation are introduced focusing on the various aspects implemented in JAEA.

Journal Articles

Nuclear fuel cycle, nuclear non-proliferation and nuclear security in Japan, 1; Peaceful nuclear use and nuclear non-proliferation

Mochiji, Toshiro; Senzaki, Masao*; Tamai, Hiroshi; Iwamoto, Tomonori*; Ishiguro, Yuzuru*; Kitade, Yuta; Sato, Heigo*; Suehiro, Rie*; Taniguchi, Tomihiro*; Fukasawa, Tetsuo*; et al.

Enerugi Rebyu, 40(6), p.58 - 59, 2020/05

In order to promote the peaceful use of nuclear energy, it is important not only to ensure safety but also to ensure nuclear non-proliferation and nuclear security. Japan has contributed to the international community through strengthening nuclear non-proliferation and nuclear security capabilities with technical and human resource development. However, in the wake of the accident at the Fukushima Daiichi Nuclear Power Plant in 2011, Japan's nuclear power plants have not restarted or plutonium use has not progressed smoothly. Concerns have been shown. Towards appropriate steps of Japan's nuclear fuel cycle policy, such concerns are examined and future efforts are summarized.

JAEA Reports

Final report on feasibility study of Pu monitoring and solution measurement of high active liquid waste containing fission product at Reprocessing Facility

Sekine, Megumi; Matsuki, Takuya; Suzuki, Satoshi*; Tsutagi, Koichi; Nishida, Naoki; Kitao, Takahiko; Tomikawa, Hirofumi; Nakamura, Hironobu; LaFleur, A.*; Browne, M.*

JAEA-Technology 2019-023, 160 Pages, 2020/03

JAEA-Technology-2019-023.pdf:9.43MB

The International Atomic Energy Agency (IAEA) has proposed in its Research and Development plan (STR-385), the development of technology to enable real-time flow measurement of nuclear material as a part of an advanced approach to effective and efficient safeguards for reprocessing facilities. To address this, Japan Atomic Energy Agency (JAEA) has been tackling development of a new detector to enable monitoring of Pu in solutions with numerous FPs as a joint research program with U.S. DOE to cover whole reprocessing process. In this study, High Active Liquid Waste (HALW) Storage Facility in Tokai Reprocessing Plant was used as the test field. At first, the design information of HALW storage tank and radiation (type and intensity) were investigated to develop a Monte Carlo N-Particle Transport Code (MCNP) model. And then, dose rate distribution outside/ inside of the concrete cell where the HALW tank is located was measured to design new detectors and check MCNP model applicability. Using the newly designed detectors, gamma rays and neutron were continuously measured at the outside/ inside of the concrete cell to assess the radiation characteristics and to optimize detector position. Finally, the applicability for Pu monitoring technology was evaluated based on the simulation results and gamma-ray/neutron measurement results. We have found that there is possibility to monitor the change of Pu amount in solution by combination both of gamma-ray and neutron measurement. The results of this study suggested the applicability and capability of the Pu motoring to enhance safeguards for entire reprocessing facility which handles Pu with FP as a feasibility study. This is final report of this project.

Journal Articles

Research on factor analysis for achieving denuclearization, 2; South Africa: Denuclearization and verification methods

Kimura, Takashi; Tazaki, Makiko; Shimizu, Ryo; Tamai, Hiroshi; Nakatani, Takayoshi; Suda, Kazunori

Nihon Kaku Busshitsu Kanri Gakkai Dai-40-Kai Nenji Taikai Puroshidhingusu, p.85 - 88, 2019/11

This is the summary of research result of methods for denuclearization and IAEA verification after the denuclearization in South Africa. South Africa had developed and possessed nuclear weapons, and dismantled them including the related facilities and equipment etc. by itself secretly in the past. The method for the denuclearization and the verification is unique in the world. This report could give us the lessons to investigate how to denuclearize and to verify them.

Journal Articles

Research on factor analysis for achieving denuclearisation, 3; Denuclearisation at Libya: Process and success factors

Tamai, Hiroshi; Shimizu, Ryo; Tazaki, Makiko; Kimura, Takashi; Nakatani, Takayoshi; Suda, Kazunori

Nihon Kaku Busshitsu Kanri Gakkai Dai-40-Kai Nenji Taikai Puroshidhingusu, p.89 - 92, 2019/11

Libya's denuclearisation, named 'the Libya model', is regarded as one of good practices in cooperation of the international community and measures that have a sense of speed with the countries and institutions involved. Success factors of the denuclearisation are the Libya's relatively low technological progress despite the procurement of extensive nuclear materials and components due to the delay of detecting the nuclear programme, prompt implementation with the close collaboration of countries concerned, and Libya's cooperation facing to the economic sanctions and the regime collapse by the Iraq war. Precious lessons will be learned towards the prevention and the denuclearisation in other countries.

Journal Articles

Research on factor analysis for achieving denuclearization, 4; Iraq: Characteristics of Iraq's denuclearization

Tazaki, Makiko; Shimizu, Ryo; Kimura, Takashi; Tamai, Hiroshi; Nakatani, Takayoshi; Suda, Kazunori

Nihon Kaku Busshitsu Kanri Gakkai Dai-40-Kai Nenji Taikai Puroshidhingusu, p.93 - 96, 2019/11

Iraq, defeated by the Gulf War, had to accept denuclearization under UN Security Council Resolution (UNSCR) 687, but did not immediately and accurately report all its past nuclear activities to the IAEA. IAEA, as an internationally authorized nuclear inspection and verification organization to Iraqi denuclearization by the UNSCR 687, gradually revealed existence and the whole picture of Iraqi clandestine nuclear activities and verified destruction of weapon related facilities and equipment as well as removal of nuclear materials outside Iraq. Analyzing Iraq's characteristics of denuclearization could serve as a good reference for not only preventing nuclear weapons development but also considering their denuclearization in current and future states.

Journal Articles

Research on factor analysis for achieving denuclearization, 1; South Africa: Motivations for nuclear weapons development, incentives for denuclearization and characteristics of its denuclearization

Tazaki, Makiko; Kimura, Takashi; Shimizu, Ryo; Tamai, Hiroshi; Nakatani, Takayoshi; Suda, Kazunori

Nihon Kaku Busshitsu Kanri Gakkai Dai-40-Kai Nenji Taikai Puroshidhingusu, p.81 - 84, 2019/11

South Africa had developed, manufactured, and possessed nuclear weapons, but later dismantled them all together with related facilities and equipment. After joining Treaty on the Non-Proliferation of Nuclear Weapons as a non-nuclear weapon state and concluding a Comprehensive Safeguards Agreement with the Atomic Energy Agency (IAEA), it started peaceful use of nuclear energy. In that sense, South Africa's denuclearization is one of good examples of past denuclearization in the world, although the South Africa's specific policy of apartheid had been deeply connected with its nuclear weapons development and denuclearization. Analysing South Africa's motivations for nuclear weapons development, incentives for denuclearization, and characteristics of its denuclearization could serve as a good reference for not only preventing nuclear weapons development but also considering their denuclearization in current and future states.

Journal Articles

Research on factor analysis for achieving denuclearization, 5; Iran's nuclear program and Iran nuclear deal

Shimizu, Ryo; Kimura, Takashi; Tazaki, Makiko; Nakatani, Takayoshi; Tamai, Hiroshi; Suda, Kazunori

Nihon Kaku Busshitsu Kanri Gakkai Dai-40-Kai Nenji Taikai Puroshidhingusu, p.97 - 99, 2019/11

Despite international accusations, Iran pursued uranium enrichment capacity. But through unprecedented strong economic sanctions, Iran accepted the restrictions on uranium enrichment capacity and agreed to accept the additional protocol. Nuclear program of Iran and nuclear deal are good precedents for denuclearization that has solved peacefully through multilateral negotiations, its process and lessons are compiled.

Journal Articles

Effective capacity-building development based on good practices from the additional protocol implementation

Rodriguez, P.; Senzaki, Masao; Sekine, Megumi

Proceedings of INMM 60th Annual Meeting (Internet), 9 Pages, 2019/07

The ISCN of the JAEA has been providing assistance, specifically to Asian countries, for the past 8 years, since its establishment in 2010. The ratification of the Protocol Additional (AP) to the safeguards agreement, had involved some changes in the Asian countries resource infrastructures to adhere with the respective States obligations on nuclear non-proliferation. During the 7th FNCA workshop held in Mito, Japan in September 2017, under the Nuclear Security and Safegaurds Project (NSSP), a 3-year plan on the formulation of a generic set of Fundamentals on the Implementation of the Additional Protocol was proposed. To formulate this set of fundamentals, there was a need to prepare a set of Examples of good practices on the implementation of the AP based on the FNCA members experience. The ISCN was tasked to prepare the template and conduct the needed survey among the FNCA members of the project on nuclear security and safeguards. This paper provides a preliminary summary and analysis of the responses received. This paper presents the analysis of the good practices that were implemented in order for the States to satisfy the requirements of the IAEA, as stipulated in the AP. The nuclear fuel cycle characteristics of the involved Asian countries are quite different in several aspects, thus entailing a diverse strategy in resource infrastructure development. This paper describes how every country may have different approaches towards achieving the same objectives. It is worthwhile to look into these various practices, find commonality and share the experience. The objective of formulating a set of fundamentals on AP implementation will be achieved through a compilation and analysis of good practices and shared experiences among its members. The preliminary result on this project was introduced at the 8th FNCA workshop held in Beijing, China in September 2018.

Journal Articles

Development of active non-destructive analysis technologies for nuclear nonproliferation and security of JAEA

Koizumi, Mitsuo

Proceedings of 41st ESARDA Annual Meeting (Internet), p.260 - 267, 2019/05

Journal Articles

The Threats of nuclear and radiological terrorism, and their countermeasures

Naoi, Yosuke

Gekkan Chian Foramu, 25(3), p.51 - 59, 2019/03

This reports describes the status quo of the nuclear and radiological terrorism around the world based on the cases that have actually occurred in the past, and summarizes how nuclear terrorism should be prevented, what should be done in order to internationally enhance nuclear security, and what countermeasures are to be actually taken in the international society.

Journal Articles

International challenge to model the long-range transport of radioxenon released from medical isotope production to six Comprehensive Nuclear-Test-Ban Treaty monitoring stations

Maurer, C.*; Bar$'e$, J.*; Kusmierczyk-Michulec, J.*; Crawford, A.*; Eslinger, P. W.*; Seibert, P.*; Orr, B.*; Philipp, A.*; Ross, O.*; Generoso, S.*; et al.

Journal of Environmental Radioactivity, 192, p.667 - 686, 2018/12

 Times Cited Count:3 Percentile:64.77(Environmental Sciences)

It is very important to understand the impact for CTBT stations caused by radioxenon emitted from medical isotope production facilities for detection of underground nuclear tests. Predictions of the impact on six CTBT radionuclide stations in the Southern Hemisphere of radioxenon emitted from the medical isotope production facility in Australia were carried out by participants from ten nations using ATM (Atmospheric Transport Modeling) based on the emission data of radioxenon from this facility, as part of study on impact of radioxenon emitted from medical isotope production facilities on CTBT radionuclide stations.

Journal Articles

Summary of questions and answers part of the 2018 Japan Society of International Law (JSIL) Annual Conference's Session 1; The 50th Anniversary of the Adoption of the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) and Nuclear Disarmament

Nakanishi, Hiroaki; Nakasone, Suguru*

Kokusaiho Gaiko Zasshi, 117(3), p.642 - 643, 2018/11

Summary of questions and answers part of the 2018 Japan Society of International Law (JSIL) Annual Conference's Session 1: The 50th Anniversary of the Adoption of the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) and Nuclear Disarmament

Journal Articles

Security measures at nuclear fuel facilities, 2; Internal threat countermeasure in cyber-security

Kono, Soma; Yamada, Hiroyuki; Goto, Atsushi*; Yamazaki, Katsuyuki; Nakamura, Hironobu; Kitao, Takahiko

Nihon Kaku Busshitsu Kanri Gakkai Dai-39-Kai Nenji Taikai Rombunshu (Internet), 2 Pages, 2018/11

no abstracts in English

Journal Articles

Study on current US views on bilateral civilian nuclear cooperation agreements

Tazaki, Makiko; Tamai, Hiroshi; Shimizu, Ryo; Kimura, Takashi; Kitade, Yuta; Nakanishi, Hiroaki; Suda, Kazunori

Nihon Kaku Busshitsu Kanri Gakkai Dai-39-Kai Nenji Taikai Rombunshu (Internet), 7 Pages, 2018/11

no abstracts in English

509 (Records 1-20 displayed on this page)