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Journal Articles

Promoting nuclear fuel cycle and ensuring nuclear non-proliferation/nuclear security

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

Dai-41-Kai Nihon Kaku Busshitsu Kanri Gakkai Nenji Taikai Kaigi Rombunshu (Internet), 4 Pages, 2020/11

In light of recent delay of plutonium use in Japan and the increasing criticism of nuclear non-proliferation and nuclear security in the nuclear fuel cycle, the validity of these criticisms will be examined for the sustainable development of the nuclear fuel cycle policy. Issues on the view point of nuclear non-proliferation and nuclear security are examined.

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

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.

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

Overview of activities and outcomes at ISCN related to Japanese commitment at nuclear security summit process

Naoi, Yosuke; Kobayashi, Naoki; Mochiji, Toshiro; Senzaki, Masao; Seya, Michio

Proceedings of 37th ESARDA Annual Meeting (Internet), p.100 - 110, 2015/08

In April 2010 at the Nuclear Security Summit in Washington, D.C., Japan made a commitment to establish a center of excellence on nuclear nonproliferation and security. This center would support capacity building for strengthening nuclear nonproliferation and security mainly in the Asian region and also would engage in development of technology related measurement and detection of nuclear material including nuclear forensics based on international cooperation. According to this statement, Integrated Support Center for Nuclear Nonproliferation and Nuclear Security (ISCN) was established under Japan Atomic Energy Agency (JAEA) in December 2010. Since its establishment four years ago, ISCN has developed its activities, having already conducted 74 training courses for the nuclear nonproliferation and security fields and having trained 2,096 participants from 49 countries (including Japan) and three international organizations. As for technical development on detection and measurement of nuclear material, ISCN has carried out substantial outcome with the international cooperation of U.S. and EU/JRC. It can be said that it is a significant achievement of the Nuclear Security Summit process. This paper will overview the outcome of ISCN's activities over the past four years.

Journal Articles

Current activities and future challenges of FNCA's nuclear security and safeguards project

Senzaki, Masao

Proceedings of INMM 56th Annual Meeting (Internet), 10 Pages, 2015/07

The presentation outlines the role and objectives of Nuclear Security and Safeguards Project (NSSP) as well as FNCA framework and provides activity examples of how NSSP member countries work together to strengthen nuclear security and enhance safeguards effectiveness and raise awareness.

Journal Articles

20 years of achievement and future challenge for international capacity building regardings safeguards and SSAC at Japan Atomic Energy Agency (JAEA)

Senzaki, Masao; Naoi, Yosuke; Kuribayashi, Toshihiro; Okumura, Yukiko

Book of Abstracts, Presentations and Papers of Symposium on International Safeguards; Linking Strategy, Implementation and People (Internet), 8 Pages, 2015/03

JAEA has supported to HRD of mainly Asian countries in the field of SGs and SSAC, and works closely with governmental organizations in Japan, and with the IAEA, the US DOE, EC, the flame work of FNCA, APSN. This paper presents the efforts, contributions and future challenges of JAEA to HRD regarding SGs and SSAC, through international cooperation, which have been taking place for around 20 years.

Journal Articles

To strengthen nuclear security; Challenge of nuclear security summit and future issues

Senzaki, Masao

Enerugi Rebyu, 34(7), p.46 - 49, 2014/07

The 2014 Nuclear Security Summit was held in The Hague on March 24-25, 2014, and included participation from 53 countries and four international organizations. The Summit resulted in the Hague Communiqueacute; that was adopted by all 53 countries present at the Summit. In addition, a number of joint statements were made by other groupings of countries participating in the Summit. This paper describes the results of the Hague summit and future issues as well as the importance of strengthening nuclear security.

Journal Articles

Japan Atomic Energy Agency (JAEA)'s international capacity building regarding safeguards and SSAC; 20 years of achievement and future challenges

Senzaki, Masao; Naoi, Yosuke; Kuribayashi, Toshihiro; Hamada, Kazuko; Okumura, Yukiko

Proceedings of INMM 55th Annual Meeting (Internet), 10 Pages, 2014/07

JAEA has supported to HRD of mainly Asian countries in the field of SGs and SSAC, and works closely with governmental organizations in Japan, and with the IAEA, the U.S. DOE, EC, the flame work of FNCA, APSN. This paper presents the efforts, contributions and future challenges of JAEA to HRD regarding SGs and SSAC, through international cooperation, which have been taking place for around 20 years.

Journal Articles

Activities at the integrated support center for nuclear nonproliferation and nuclear security, and trilateral harmonization among Japan, ROK, and China

Naoi, Yosuke; Kobayashi, Naoki; Senzaki, Masao

Proceedings of INMM 55th Annual Meeting (Internet), 9 Pages, 2014/07

Within the Asian region, China and ROK also committed at the 2010 Security Summit to establishing similar training centers. ROK established one in February 2014, and China started construction on its center in October 2013, aiming to commence activities in 2015. In 2013, the International Atomic Energy Agency (IAEA) started discussions with these three countries for the harmonization of the contents of their centers' training activities. The purpose of these discussions is to avoid duplication of effort, since three centers of a similar kind will be established in the Asian region. In these discussions, ISCN has taken the lead to find ways to make this harmonization a reality. This paper will present the result of ISCN's activities over the past three and a half years; the current situation of the cooperation among the three countries, Japan, China, and ROK; and the future efforts to be made.

Journal Articles

Lessons learned and the prospects of ISCN's nuclear security capacity building support

Hamada, Kazuko; Naoi, Yosuke; Senzaki, Masao

Proceedings of International Conference on Nuclear Security; Enhancing Global Efforts (CD-ROM), 8 Pages, 2014/03

This paper describes challenges to nuclear security capacity building support, introduces ISCN's experience in addressing these challenges, and discusses how to apply lessons learned to advance our nuclear security capacity building support.

Journal Articles

Int'l trends toward strengthening N-security and challenges of Japan

Senzaki, Masao

Plutonium, (80), p.8 - 13, 2013/08

no abstracts in English

Journal Articles

Development of regional training course for physical protection of nuclear material and facilities at Integrated Support Center for Nuclear Nonproliferation and Nuclear Security

Naoi, Yosuke; Kobayashi, Naoki; Hamada, Kazuko; Noro, Naoko; Matsuzawa, Reina; Wakabayashi, Shuji; Nonaka, Nobuyuki; Senzaki, Masao; Scharmer, C.*; Duggan, R.*; et al.

Proceedings of INMM 53rd Annual Meeting (CD-ROM), 10 Pages, 2012/07

At the 2010 Washington Nuclear Security Summit, Japan committed to establish a regional center for the strengthening of nuclear security, mainly in Asia, through capacity building support including human resources training and infrastructure development assistance. In accordance with this statement, the Integrated Support Center for Nuclear Nonproliferation and Nuclear Security (ISCN) was inaugurated in December 2010 in Japan Atomic Energy Agency (JAEA). This paper describes the ISCN training activities and introduces the developing new training course on physical protection.

Journal Articles

Nuclear nonproliferation capacity building support by Integrated Support Center for Nuclear Nonproliferation and Nuclear Security; Modeling the support program for Vietnam and beyond

Hamada, Kazuko; Senzaki, Masao; Okubo, Michiaki; Naoi, Yosuke; Kobayashi, Naoki; Nguyen, N. H. V.*

Proceedings of INMM 53rd Annual Meeting (CD-ROM), 10 Pages, 2012/07

no abstracts in English

Journal Articles

Role of safeguards in proliferation resistance for the future nuclear fuel cycle systems

Kuno, Yusuke; Senzaki, Masao; Seya, Michio; Inoue, Naoko

Proceedings of International Conference on Fast Reactors and Related Fuel Cycles (FR 2009) (CD-ROM), 11 Pages, 2012/00

A large amount of plutonium as well as high $$^{239}$$Pu should be handled in the future fast reactor nuclear fuel cycle (FR-NFC), where very robust measures for nuclear proliferation-resistance (PR) may have to be taken to prevent nuclear proliferation. To find a good balance of extrinsic barrier and intrinsic one will come to be essential for NFC designers to optimize civilian nuclear technology with nuclear non-proliferation. International Safeguards including Comprehensive Safeguards Agreement and Additional Protocol is the most effective institutional barrier among other institutional measures in non-proliferation regime. The advanced Safeguards with high detectability can play a dominant role for PR in the states complying with full institutional controls. In this context, a new concept of differentiation in the intrinsic measures depending upon the level of Safeguards could be applied from the viewpoint of plant design rationalization.

JAEA Reports

Introduction to the Revision 5 of Evaluation Methodology for Proliferation Resistance and Physical Protection of Generation IV Nuclear Energy Systems

Kawakubo, Yoko; Inoue, Naoko; Senzaki, Masao

JAEA-Review 2011-024, 75 Pages, 2011/12

JAEA-Review-2011-024.pdf:3.61MB

Revision 5 of the "Evaluation Methodology for Proliferation Resistance and Physical Protection of Generation IV Nuclear Energy Systems" is also known as the Rev. 5 report. The Rev. 5 report provides an important evaluation framework that was developed with consensus-based discussions, and published by the OECD-NEA in November, 2006. The activities of PR&PP WG has contributed to establish PR&PP culture. Japan has to develop the future nuclear cycle system with sufficient proliferation resistance and physical protection features and demonstrate and explain about its effectiveness to the domestic and international society. For these reasons, and recognizing the usefulness of the Revision-5 Report, it was translated and published here as a Japanese-language edition with the concurrence of the OECD-NEA. The original report in English language can be downloaded at the OECD-NEA website.

Journal Articles

Development programs of cutting-edge technologies for measurement and detection of nuclear material for safeguards and security

Seya, Michio; Wakabayashi, Shuji; Naoi, Yosuke; Okubo, Michiaki; Senzaki, Masao

Kaku Busshitsu Kanri Gakkai (INMM) Nippon Shibu Dai-32-Kai Nenji Taikai Rombunshu (Internet), 9 Pages, 2011/11

The Integrated Support Center for Nuclear Nonproliferation and Nuclear Security (ISCN, hereafter) of Japan Atomic Energy Agency (JAEA) has development programs of cutting-edge technologies for measurement and detection of nuclear materials for nuclear safeguards and security, under the sponsorship of Japanese government (MEXT: Ministry of Education, Culture, Sports, Science and Technology). ISCN started development programs of the following technologies this year. (1) NRF (Nuclear Resonance Fluorescence) NDA technology using laser Compton scattering (LCS) $$gamma$$-rays (2) Alternative to $$^{3}$$He neutron detection technology using inorganic solid scintillator. ISCN is also going to conduct a demonstration test of a spent fuel Pu-NDA system that is to be developed by LANL (Los Alamos National Laboratory) using very sophisticated neutron measurement technologies, under JAEA/USDOE cooperation agreement. This presentation shows the above programs of ISCN.

Journal Articles

JAEA development programs of advanced technologies of measurement and detection of nuclear material for safeguards and security

Seya, Michio; Wakabayashi, Shuji; Senzaki, Masao; Okubo, Michiaki; Naoi, Yosuke

Proceedings of INMM 52nd Annual Meeting (CD-ROM), 10 Pages, 2011/07

The Integrated Support Center for Nuclear Nonproliferation and Nuclear Security (ISCN) of JAEA established in December, 2010 has development programs of cutting-edge technologies for measurement and detection of nuclear materials, in addition to its functions of "assistance for human resources development and capacity buildings", "institutional infrastructure development and technical support" and "international cooperation and collaboration" under the sponsorship of MEXT. ISCN started development programs of "NRF (Nuclear Resonance Fluorescence) NDA technology using laser Compton scattering (LCS) $$gamma$$-rays", "Alternative to $$^{3}$$He neutron detection technology using inorganic solid scintillator". ISCN is also going to conduct a demonstration test of a spent fuel Pu-NDA system using very sophisticated neutron measurement technologies, that are to be developed by LANL after conclusion of a JAEA/US.DOE cooperation agreement. This paper presents the development programs of ISCN.

Journal Articles

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