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Journal Articles

Research activities for development of CTBT-related technologies in JAERI

Shinohara, Nobuo; Asano, Yoshie; Hirota, Naoki*; Hokida, Takanori; Inoue, Yoji; Kumata, Masahiro; Nakahara, Yoshinori*; Oda, Tetsuzo*; Uchikoshi, Takako*; Yamamoto, Yoichi

Proceedings of International Conference on Nuclear Energy System for Future Generation and Global Sustainability (GLOBAL 2005) (CD-ROM), 3 Pages, 2005/10

Research activities of JAERI related to the CTBT verification regime are presented in the International Conference. The subjects of this presentation are (1) an overview of the CTBT verification regime, (2) construction and operation of the radionuclide monitoring stations of Okinawa (RN37) and Takasaki (RN38) and the certified radionuclide laboratory (RL11), and (3) preparation of the National Data Center at Tokai (JAERI NDC) for radionuclide data. The RN38 station has been certified by the CTBTO/PrepCom and sending the measured data every day. The infrastructures and operational manuals for RN37 and RL11 are now preparing for their operations. The JAERI NDC has experimentally analyzed and evaluated the radionuclide data from all over the world through International Data Center (IDC). As an example of the JAERI NDC works, atmospheric dispersion backtracking system has been developing by using WSPEEDI (Worldwide Version of System for Prediction of Environmental Emergency Dose Information) code to estimate a source location of radionuclide release by nuclear explosion/accident.

JAEA Reports

Recent status of research activities for development of CTBT-related technologies in JAERI

Hirota, Naoki*; Hokida, Takanori; Inoue, Yoji; Kumata, Masahiro; Kurosawa, Yoshiaki; Miyamoto, Yutaka; Nakahara, Yoshinori; Oda, Tetsuzo; Shinohara, Nobuo; Uchikoshi, Takako*; et al.

JAERI-Review 2003-021, 68 Pages, 2003/08

JAERI-Review-2003-021.pdf:9.73MB

This report describes research activities of the R & D Group for Non-Proliferation Technology related to the Comprehensive Nuclear-Test-Ban Treaty (CTBT) verification regime. The main subjects of this report are (1) an overview of the CTBT verification regime, (2) preparation of the National Data Center for radionuclide data, (3) construction and operation of the radionuclide monitoring stations at Takasaki and Okinawa and the certified rarionuclide laboratory at Tokai in Japan. We have participated in an intercomparison test internationally organized for the certified laboratories and the test results are given here. Scientific application of the CTBT-related technologies to environmental researches is also depicted.

Journal Articles

Present state of JAERI National Data Center (NDC) for CTBT verification

Yamamoto, Yoichi; Hokida, Takanori; Hirota, Naoki*; Oda, Tetsuzo; Nakahara, Yoshinori; Kumata, Masahiro; Inoue, Yoji; Uchikoshi, Takako*; Shinohara, Nobuo; Usuda, Shigekazu

Dai-23-Kai Kaku Busshitsu Kanri Gakkai Nihon Shibu Nenji Taikai Rombunshu, p.53 - 60, 2002/12

The Japan Atomic Energy Research Institute (JAERI) has developed the National Data Center (NDC) for radionuclide as part of the international monitoring regime related to the Comprehensive Nuclear-Test-Ban Treaty (CTBT). JAERI NDC already started to input gamma-ray spectrum data obtained from several International Monitoring System (IMS) stations into a database. Data analysis reports made by the International Data Center (IDC) are also stored in the database. Some software tools are under development for the NDC's independent analysis such as investigation of existence of the radionuclides derived from nuclear explosion and presumptive analysis of source location of radionuclide release. The NDC system will also be able to post IMS data and analysis results to the authorized users on the Internet. This paper presents the role, current state of system development and future plan of JAERI NDC.

Journal Articles

The Present status and issues on establishment of the CTBT verification regime

Oda, Tetsuzo; Kumata, Masahiro; Nakahara, Yoshinori; Yamamoto, Yoichi; Hokida, Takanori; Hirota, Naoki*; Uchikoshi, Takako*; Inoue, Yoji; Shinohara, Nobuo

Dai-23-Kai Kaku Busshitsu Kanri Gakkai Nihon Shibu Nenji Taikai Rombunshu, p.29 - 37, 2002/12

The Comprehensive nuclear Test-Ban Treaty(CTBT) bans all nuclear explosions and also calls for a verification regime, which consists of the International Monitoring System(IMS) and On-site Inspection. The primary objectives of the IMS are to deter nuclear explosions in all environments and, if such an explosion does occur, to detect, locate, and identify its source. The CTBT was opened for signature on September 24, 1996 and the Preparatory Commission(PrepCom) for the CTBT Organization was established to prepare for the verification regime in order to monitor compliance with the Treaty. The Preparatory Commission comprises two main organs: a plenary body of all the States Signatories as the highest policy-making organ, and the Provisional Technical Secretariat(PTS). The plenary body has three subsidiary bodies: Working Group A(administrative matters and legal issues), Working Group B(verification issues), and an Advisory Group. This paper presents an overview and mandate of the PrepCom, and status of verification regime, and discusses future activities.

Journal Articles

Density measurement of molten NdCl$$_3$$-NaCl and NdCl$$_3$$-KCl system by $$gamma$$ ray attenuation

Sato, Tadashi; Okamoto, Yoshihiro; Ogawa, Toru

Journal of Nuclear Science and Technology, 39(Suppl.3), p.635 - 637, 2002/11

Densities of molten chlorides mixtures of NdCl$$_3$$-NaCl and NdCl$$_3$$-KCl systems have been measured using $$gamma$$-ray attenuation method as a function of temperature. Gamma ray spectra of Ho-166m radiation source were taken before and after passing through the molten chlorides in a quartz cell by a Ge-detector coupled with muluti-channel analyzer. The density was calculated with observed attenuation factor, cross section data of photons for relevant elements and length of the cell. The measured densities of molten NdCl$$_3$$-NaCl and NdCl$$_3$$-KCl were compared with literature data by dilatometric method.

Journal Articles

Development of an atmospheric dispersion backtracking software for CTBT verification systems

Hokida, Takanori; Yamamoto, Yoichi; Yamazawa, Hiromi

Dai-22-Kai Kaku Busshitsu Kanri Gakkai Nihon Shibu Nenji Taikai Rombunshu, p.149 - 156, 2001/02

no abstracts in English

JAEA Reports

Revised SWAT; The Integrated burnup calculation code system

Suyama, Kenya; Kiyosumi, Takehide*; Mochizuki, Hiroki*

JAERI-Data/Code 2000-027, 88 Pages, 2000/07

JAERI-Data-Code-2000-027.pdf:4.08MB

no abstracts in English

Journal Articles

The Function and role of JAERI National Data Center (NDC) for CTBT vertification

Hokida, Takanori; Oda, Tetsuzo; Yamamoto, Yoichi; Miyamoto, Yutaka; Adachi, Takeo

Dai-21-Kai Kaku Busshitsu kanri Gakkai (INMM) Nihon Shibu Nenji Taikai Rombunshu, p.17 - 24, 2000/00

no abstracts in English

Journal Articles

CTBT international monitoring system on radionuclides and NDC

Takano, Makoto; Oda, Tetsuzo; Nishimura, Hideo; Adachi, Takeo

Kaku Busshitsu Kanri Gakkai Nihon Shibu Dai-20-Kai Kinen Taikai Rombunshu, p.100 - 105, 1999/11

no abstracts in English

JAEA Reports

Integrated burnup calculation code system SWAT

Suyama, Kenya; *; *

JAERI-Data/Code 97-047, 128 Pages, 1997/11

JAERI-Data-Code-97-047.pdf:3.06MB

no abstracts in English

Journal Articles

The 21st international nuclear data committee meeting

Hasegawa, Akira

Nihon Genshiryoku Gakkai-Shi, 39(11), p.957 - 959, 1997/00

no abstracts in English

JAEA Reports

JNDC nuclear data library of fission products; Second version

Tasaka, Kanji; Katakura, Junichi; Ihara, Hitoshi; Yoshida, Tadashi*; Iijima, Shungo*; Nakashima, Ryuzo*; Nakagawa, Tsuneo; Takano, Hideki

JAERI 1320, 253 Pages, 1990/09

JAERI-1320.pdf:10.61MB

no abstracts in English

JAEA Reports

Proceedings of the 1983 Seminar on Nucloar Data

; ; Nakazawa, Masaharu*; *; *; ; ;

JAERI-M 84-010, 426 Pages, 1984/03

JAERI-M-84-010.pdf:11.04MB

no abstracts in English

JAEA Reports

A Survey of Nuclear Data Requirements Through the Uranium Plutonium Fuel Cycle

Umezawa, Hirokazu; *

JAERI-M 9993, 84 Pages, 1982/02

JAERI-M-9993.pdf:2.4MB

no abstracts in English

JAEA Reports

JNDC fission product group constants; Preliminary Version

Kikuchi, Yasuyuki; ; Tasaka, Kanji; ; *; Katsuragi, Satoru

JAERI-M 6001, 80 Pages, 1975/02

JAERI-M-6001.pdf:2.32MB

no abstracts in English

Journal Articles

Report on the Fifth INDC (International Nuclear Data Committee) Meeting

Nihon Genshiryoku Gakkai-Shi, 14(10), p.568 - 569, 1972/00

no abstracts in English

Journal Articles

It Attends the 14th Conference

Nihon Genshiryoku Gakkai, 13(7), p.413 - 415, 1971/00

no abstracts in English

Oral presentation

Japan Atomic Energy Agency's efforts to the CTBT verification regime

Yamamoto, Yoichi; Kijima, Yuichi; Tomita, Yutaka

no journal, , 

As a member of the CTBT National Operation System of Japan (NOSJ), JAEA monitors and evaluates radionuclides derived from nuclear tests. For this purpose, Takasaki and Okinawa radionuclide stations, Tokai radionuclide laboratory, and a national data center already were put in place and have been operated. This presentation introduces outline of NOSJ and each facility, the response to a nuclear test event, JAEA's recent activities etc.

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