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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

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

Journal Articles

A Study on the tendencies on the member states from which Broader Conclusion (BC) has been drawn and on those from which BC has not been drawn yet by the International Atomic Energy Agency; Extracting possible requirements for drawing the BC

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

Nihon Kaku Busshitsu Kanri Gakkai Dai-39-Kai Nenji Taikai Rombunshu (Internet), 9 Pages, 2018/11

To extract the possible requirements for the Broader Conclusion (BC) drawn by the IAEA in the Member States, this study is to conduct the comparative analysis of the tendencies on the Member States from which the BC has been drawn and those from which the BC has not been drawn yet.

Journal Articles

Summary of research result of State Level Concept (SLC)

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

Nihon Kaku Busshitsu Kanri Gakkai Dai-39-Kai Nenji Taikai Rombunshu (Internet), 5 Pages, 2018/11

This is the summary of research result of State Level Concept (SLC) which has been developed and conducted by the IAEA and a major purpose of the research reported here is to promote the nuclear operator's understandings for the importance of Broder Conclusion drawn continuously by the IAEA under SLC.

Journal Articles

Study on elements of establishing the regional safeguards

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

Nihon Kaku Busshitsu Kanri Gakkai Dai-39-Kai Nenji Taikai Rombunshu (Internet), 9 Pages, 2018/11

Regional Safeguards is considered as one of the measures for strengthening IAEA safeguards and its concept is recognized at NPT Review Conference and also NSG Guidelines amended in 2011. This Study examines the elements for the proper establishment of Regional Safeguards.

Journal Articles

Analysis of the trends on minimization of proliferation risk

Suda, Kazunori; Shimizu, Ryo; Tazaki, Makiko; Tamai, Hiroshi; Kitade, Yuta

Nihon Kaku Busshitsu Kanri Gakkai Dai-38-Kai Nenji Taikai Rombunshu (Internet), 9 Pages, 2018/04

Since India's nuclear explosion in 1974, there has been continued discussion on nuclear non-proliferation. At first, to prevent proliferation of nuclear weapons, the International Nuclear Fuel Cycle Evaluation (INFCE) was established to discuss reprocessing, plutonium handling, and so on. After that, to respond to the threat of proliferation posed by DPRK, the international community desired to further enhance nuclear non-proliferation by strengthening the IAEA safeguards system. In recent years, some researchers at universities and national laboratories are studying proliferation resistance from the standpoint of nuclear materials that may be inherently self-protecting. This paper discusses minimization of proliferation risk and future prospects based on alternative measures for reprocessing, plutonium handling, and recycling described in INFCE-WG4.

Journal Articles

Study on nuclear nonproliferation conditions required by the US Atomic Energy Act in connection with nuclear cooperation agreements with the US

Tazaki, Makiko; Suda, Kazunori; Shimizu, Ryo; Tamai, Hiroshi; Kitade, Yuta

Nihon Kaku Busshitsu Kanri Gakkai Dai-38-Kai Nenji Taikai Rombunshu (Internet), 9 Pages, 2018/04

no abstracts in English

Journal Articles

Consideration on UK Withdrawal from EURATOM

Tamai, Hiroshi; Tazaki, Makiko; Kitade, Yuta; Shimizu, Ryo; Suda, Kazunori

Nihon Kaku Busshitsu Kanri Gakkai Dai-38-Kai Nenji Taikai Rombunshu (Internet), 6 Pages, 2018/04

The United Kingdom, UK, in March 2017, notified the withdrawal from the European Union, EU. Since EURATOM is managed by the same organisation of EU, the withdrawal from EURATOM is considered to be unavoidable. UK has to define the regulation for the measures covered by EURATOM which include the implementing safeguards in the civil UK nuclear facilities and the nuclear cooperation agreements between EURATOM and third nations. UK experts recognise that such re-arrangements within 2-years are very tough hurdle, so that some alternative measures are proposed by industry side. For peaceful nuclear use in Japan, hindrances on the smooth transfers of nuclear materials and equipment between UK are concerned. This paper will discuss the UK withdrawal from EURATOM focused on the UK's correspondence and the potential influence on cooperation with Japan in view of nuclear non-proliferation.

Oral presentation

Study on non-discrimination in development of verification systems for FMCT

Kitade, Yuta

no journal, , 

FMCT should be "non-discriminatory", "multilateral," and "internationally and effectively verifiable. The GGE report published in 2015 stated that "There was strong support for a non-discriminatory verification regime, under which all States parties are subject to the same obligations". In other words, a single verification objective among states parties is required for FMCT. Therefore, application of safeguards of the same standard is required irrespective of whether or not the state is nuclear-armed. Intrusive on-site verification activities, such as complementary access under the IAEA Model Additional Protocol, should be accepted for nuclear-armed states to achieve the relevant FMCT goals for the purpose of preventing secret and undeclared production of weapon-grade fissile material. From the viewpoint of "non-discrimination", this paper considers whether intrusive inspections should also be required in non-nuclear-weapon states which do not accept such obligations, and also considers problematic issues on this case.

Oral presentation

Study on DPRK's nuclear program and UNSC's sanctions in relation to JCPOA

Shimizu, Ryo; Suda, Kazunori; Tazaki, Makiko; Tamai, Hiroshi; Kitade, Yuta

no journal, , 

In order to deal with Iran's and DPRK's ambitious nuclear programs, the international community has made various efforts, including negotiation within a multilateral framework and UNSC's economic sanctions. As to Iran's nuclear program, EU3+3 successfully reached a JCPOA (Joint Comprehensive Plan of Action) in July 2015 by lifting sanctions as well as limiting Iran's nuclear capacity. On the other hand, the international community has not been successful so far in discouraging DPRK from conducting nuclear and missile tests. Six-Party Talks is still suspended. In this report, various aspects of Iran's and DPRK's nuclear programs are to be precisely delineated, and then discussed in order to develop possible measures against DPRK's nuclear program, together with potential effects on the countries concerned when implementing such measures.

Oral presentation

Transparency of peaceful use in nuclear fuel cycle

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

no journal, , 

Since the early stage of its peaceful nuclear use, Japan has promoted the plutonium management with transparent manner as a main stream of the nuclear fuel cycle policy. This paper briefly reviews good practices of plutonium management transparency and the current trend of plutonium policies in leading countries.

Oral presentation

Synergistic effect of nuclear security and nuclear nonproliferation on nuclear fuel cycle facilities

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

no journal, , 

In order to enhance and promote both nuclear nonproliferation (safeguards) and nuclear security measures, challenges and possible solutions to maximize such effects and to expand feasibility and applicability of detection technologies which could be shared among both 2S in future nuclear fuel cycle facilities are clarified and discussed.

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