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JAEA Reports

The Annual report on the environmental monitoring around the waste rock sites 2012; Tottori

Ito, Kimio; Ono, Takayuki; Ishimori, Yuu; Kawasaki, Satoru

JAEA-Review 2014-024, 19 Pages, 2014/08

JAEA-Review-2014-024.pdf:3.28MB

The Ningyo-toge Environmental Engineering Center of the Japan Atomic Energy Agency performs the environmental monitoring around the Ningyo-toge and the waste rock sites according to the agreements with local governments, Okayama and Tottori prefectures. Each prefectural committee on the environmental monitoring evaluates the monitoring data annually. This report summarized the results of the environmental monitoring in Tottori prefecture in the fiscal year 2012. The results show that the levels of the radiation doses and the radioactive concentrations in the environment were within natural variations, and the waste rock sites have been well maintained. The committee concluded that the environmental impacts from the sites were negligible.

JAEA Reports

The Annual report on the environmental monitoring around the Ningyo-toge, 2011; Okayama

Ito, Kimio; Ono, Takayuki; Ishimori, Yuu; Kawasaki, Satoru

JAEA-Review 2013-020, 44 Pages, 2013/10

JAEA-Review-2013-020.pdf:5.03MB

The Ningyo-toge Environmental Engineering Center of the Japan Atomic Energy Agency (JAEA Ningyo-toge) performs the environmental monitoring around the Ningyo-toge and the waste rock sites according to the agreements with local governments, Okayama and Tottori prefectures. Environmental monitoring of plutonium has been also performed around the Ningyo-toge regarding the practical application study on the reprocessed uranium conversion, which was carried out from 1994 to 1999 at the Ningyo-toge. Each prefectural committee on the environmental monitoring evaluates the monitoring data annually. This report summarized the results of the environmental monitoring in Okayama prefecture in the fiscal year 2011. The results show that the levels of the radiation doses and the radioactive concentrations in the environment were within natural variations, and the committee concluded that the environmental impacts from the sites were negligible. Therefore, the site of the JAEA Ningyo-toge has been well operated, and the waste rock sites have been well maintained.

JAEA Reports

The Annual report on the environmental monitoring around the waste rock sites 2011; Tottori

Ito, Kimio; Ono, Takayuki; Ishimori, Yuu; Kawasaki, Satoru

JAEA-Review 2013-019, 20 Pages, 2013/07

JAEA-Review-2013-019.pdf:1.93MB

The Ningyo-toge Environmental Engineering Center of the Japan Atomic Energy Agency performs the environmental monitoring around the Ningyo-toge and the waste rock sites according to the agreements with local governments, Okayama and Tottori prefectures. Each prefectural committee on the environmental monitoring evaluates the monitoring data annually. This report summarized the results of the environmental monitoring in Tottori prefecture in the fiscal year 2011. The results show that the levels of the radiation doses and the radioactive concentrations in the environment were within natural variations, and the waste rock sites have been well maintained. The committee concluded that the environmental impacts from the sites were negligible.

JAEA Reports

The Annual report on the environmental monitoring around the Ningyo-toge, 2010; Okayama

Ito, Kimio; Ono, Takayuki; Ishimori, Yuu; Kawasaki, Satoru

JAEA-Review 2012-005, 44 Pages, 2012/03

JAEA-Review-2012-005.pdf:3.86MB

The Ningyo-toge Environmental Engineering Center of the Japan Atomic Energy Agency (JAEA Ningyo-toge) performs the environmental monitoring around the Ningyo-toge and the waste rock sites according to the agreements with local governments, Okayama and Tottori prefectures. Environmental monitoring of plutonium has been also performed around the Ningyo-toge regarding the practical application study on the reprocessed uranium conversion, which was carried out from 1994 to 1999 at the Ningyo-toge. Each prefectural committee on the environmental monitoring evaluates the monitoring data annually. This report summarized the results of the environmental monitoring in Okayama prefecture in the fiscal year 2010. The results show that the levels of the radiation doses and the radioactive concentrations in the environment were within natural variations, and the committee concluded that the environmental impacts from the sites were negligible. Therefore, the site of the JAEA Ningyo-toge has been well operated, and the waste rock sites have been well maintained.

JAEA Reports

The Annual report on the environmental monitoring around the waste rock sites, 2010; Tottori

Ito, Kimio; Ono, Takayuki; Ishimori, Yuu; Kawasaki, Satoru

JAEA-Review 2012-004, 20 Pages, 2012/03

JAEA-Review-2012-004.pdf:1.57MB

The Ningyo-toge Environmental Engineering Center of the Japan Atomic Energy Agency performs the environmental monitoring around the Ningyo-toge and the waste rock sites according to the agreements with local governments, Okayama and Tottori prefectures. Each prefectural committee on the environmental monitoring evaluates the monitoring data annually. This report summarized the results of the environmental monitoring in Tottori prefecture in the fiscal year 2010. The results show that the levels of the radiation doses and the radioactive concentrations in the environment were within natural variations, and the waste rock sites have been well maintained. The committee concluded that the environmental impacts from the sites were negligible.

JAEA Reports

The Annual report on the environmental monitoring around the waste rock sites, 2009; Tottori

Ito, Kimio; Soma, Susumu; Ono, Takayuki; Ishimori, Yuu; Kawasaki, Satoru

JAEA-Review 2011-011, 20 Pages, 2011/03

JAEA-Review-2011-011.pdf:1.59MB

The Ningyo-toge Environmental Engineering Center of the Japan Atomic Energy Agency performs the environmental monitoring around the Ningyo-toge and the waste rock sites according to the agreements with local governments, Okayama and Tottori prefectures. Each prefectural committee on the environmental monitoring evaluates the monitoring data annually. This report summarized the results of the environmental monitoring in Tottori prefecture in the fiscal year 2009. The results show that the levels of the radiation doses and the radioactive concentrations in the environment were within natural variations, and the waste rock sites have been well maintained. The committee concluded that the environmental impacts from the sites were negligible.

JAEA Reports

The Annual report on the environmental monitoring around the Ningyo-toge, 2009; Okayama

Ito, Kimio; Soma, Susumu; Ono, Takayuki; Ishimori, Yuu; Kawasaki, Satoru

JAEA-Review 2011-010, 44 Pages, 2011/03

JAEA-Review-2011-010.pdf:2.5MB

The Ningyo-toge Environmental Engineering Center of the Japan Atomic Energy Agency (JAEA Ningyo-toge) performs the environmental monitoring around the Ningyo-toge and the waste rock sites according to the agreements with local governments, Okayama and Tottori prefectures. Environmental monitoring of plutonium has been also performed around the Ningyo-toge regarding the practical application study on the reprocessed uranium conversion, which was carried out from 1994 to 1999 at the Ningyo-toge. Each prefectural committee on the environmental monitoring evaluates the monitoring data annually. This report summarized the results of the environmental monitoring in Okayama prefecture in the fiscal year 2009. The results show that the levels of the radiation doses and the radioactive concentrations in the environment were within natural variations, and the committee concluded that the environmental impacts from the sites were negligible. Therefore, the site of the JAEA Ningyo-toge has been well operated, and the waste rock sites have been well maintained.

Journal Articles

Report of IAEA Radiation Safety Standards Committee (RASSC) 29th Meeting

Ito, Kimio

Hoken Butsuri, 46(1), p.79 - 82, 2011/03

Outline of IAEA/RASSC29 Meeting held during 12/7/2010-12/10/2010.

Journal Articles

Report of IAEA Radiation Safety Standards Committee(RASSC) 27th Meeting

Ito, Kimio

Hoken Butsuri, 45(1), p.86 - 89, 2010/03

Summary report of IAEA/RASSC (Radiation Safety Standards Committee) 27th Meeting that was held on 16-19 Nov. 2009. Main agenda was the revision of BSS (International Basic Safety Standards fro Protection against Ionizing Radiation and fro the Safety of Radiation Sources).

Journal Articles

Report of IAEA Radiation Safety Standards Committee (RASSC) 26th meeting

Ito, Kimio

Hoken Butsuri, 44(4), p.426 - 430, 2009/12

Summary report of IAEA/RASSC26(Radiation Safety Standard Committee) that was held from 29th June to 3rd July in 2009. Main issue of the meeting was revision of BSS(International Basic Safety Standards for Protection against Ionizing Radiation and for the Safety of Radiation Sources).

JAEA Reports

Detaching test on an irradiated mock-up contaminated with tritium from the core of JMTR

Tomita, Kenji; Tsuchiya, Kunihiko; Onuma, Yuichi; Inoue, Shuichi; Watanabe, Hiroyuki; Saito, Takashi; Kikuchi, Taiji; Hayashi, Kimio; Kitajima, Toshio

JAEA-Technology 2008-036, 61 Pages, 2008/06

JAEA-Technology-2008-036.pdf:7.47MB

The second in-situ irradiation experiment using a mock-up (ORIENT-II, JMTR capsule Number: 99M-54J) with a tritium breeder (Li$$_{2}$$TiO$$_{3}$$) pebble bed in the Japan Materials Testing Reactor (JMTR) was finished on Aug. 1, 2006. Consideration on the detaching procedure of the irradiated mock-up contaminated with tritium with pebble bed and a detaching test of this mock-up was carried out. The tritium removal properties were examined in the irradiated mock-up, the sweep gas tube, the protective tube and the junction box, for the decreasing of the tritium release to the area of detaching test. Melting/enclosed tests of sealing plug were also carried out for the prevention of tritium leakage from sweep gas lines of pebble bed. Then, the detaching test of the pebble bed was carried out. This report describes the results of tritium removal tests, examination of the detaching procedure, and the detaching test, as well as knowledge obtained from these tests and works.

Journal Articles

1st Report of expert group on ICRP new human alimentary tract model; Review of ICRP publication 100; About attachments

Ito, Kimio

Nihon Hoken Butsuri Gakkai Senmon Kenkyukai Hokokusho Shirizu (Internet), 6(2), p.77 - 86, 2008/04

no abstracts in English

Journal Articles

Recent work of IAEA/RASSC

Ito, Kimio

Hoeikyo Nyusu, (54), p.16 - 17, 2008/01

no abstracts in English

Journal Articles

Practical action levels for chelation therapy in plutonium inhalation using nose swab

Kurihara, Osamu; Takada, Chie; Takasaki, Koji; Ito, Kimio; Momose, Takumaro; Miyabe, Kenjiro

Radiation Protection Dosimetry, 127(1-4), p.411 - 414, 2007/11

 Times Cited Count:7 Percentile:46.54(Environmental Sciences)

Practical action levels for beginning chelation therapy to remove plutonium in the body are now under discussion in Japan since there has been no experience in administrating agents to a subject in accidental intake in Japan although a first commercial reprocessing plant is about to start operation. Recently, International Commission on Radiological Protection (ICRP) proposed some medical intervention levels for chelation therapy on ICRP Publication 96. These levels are determined based on internal dose however common monitoring methods such as lung counting or excreta analysis are not necessarily suitable in terms of both sensitivity and promptness. As an alternative, the authors paid attention to nose swabs and introduced the practical action levels.

Journal Articles

REIDAC; A Software package for retrospective dose assessment in internal contamination of radionuclides

Kurihara, Osamu; Hato, Shinji; Kanai, Katsuta; Takada, Chie; Takasaki, Koji; Ito, Kimio; Ikeda, Hiroshi*; Oeda, Mikihiro*; Kurosawa, Naohiro*; Fukutsu, Kumiko*; et al.

Journal of Nuclear Science and Technology, 44(10), p.1337 - 1346, 2007/10

 Times Cited Count:0 Percentile:0.00(Nuclear Science & Technology)

In the case of internal contamination of radionuclides, it is necessary to perform internal dose assessment for radiation protection. For this purpose, the ICRP has given the dose coefficients and the retention and excretion rates for various radionuclides. However, these dosimetric quantities are calculated only in typical conditions, therefore, are not necessarily covered enough in the case of dose assessment in which specific information on the incident or/and individual biokinetic characteristics should be taken into account retrospectively. This paper describes a developed PC-based package of software REIDAC to meet the needs in retrospective dose assessment. REIDAC was verified by comparisons with dosimetric quantities given on the ICRP publications and several examples of practical use were also shown.

Journal Articles

In-situ tritium recovery behavior from Li$$_{2}$$TiO$$_{3}$$ pebble bed under neutron pulse operation

Tsuchiya, Kunihiko; Kikukawa, Akihiro*; Hoshino, Tsuyoshi; Nakamichi, Masaru; Yamada, Hirokazu*; Yamaki, Daiju; Enoeda, Mikio; Ishitsuka, Etsuo; Kawamura, Hiroshi; Ito, Haruhiko; et al.

Journal of Nuclear Materials, 329-333(Part2), p.1248 - 1251, 2004/08

 Times Cited Count:10 Percentile:55.22(Materials Science, Multidisciplinary)

no abstracts in English

JAEA Reports

Acceleration irradiation test of first-loading fuel of High Temperature Engineering Test Reactor (HTTR) up to high burnup (Joint research)

Sawa, Kazuhiro; Sumita, Junya; Ueta, Shohei; Takahashi, Masashi; Tobita, Tsutomu*; Hayashi, Kimio; Saito, Takashi; Suzuki, Shuichi*; Yoshimuta, Shigeharu*; Kato, Shigeru*

JAERI-Research 2002-012, 39 Pages, 2002/06

JAERI-Research-2002-012.pdf:3.12MB

no abstracts in English

Journal Articles

Measurements and Evaluation of Radon from Closed Uranium Mine

Furuta, Sadaaki; Ito, Kimio; Ishimori, Yuu

International Workshop on Distribution and Specia, 0 Pages, 2002/00

None

Journal Articles

Measurements and Evaluation of Radon from Closed Mine

Furuta, Sadaaki; Ito, Kimio; Ishimori, Yuu

International Workshop on Distribution and Speciat, 0 Pages, 2002/00

None

Journal Articles

Measurements of radon around closed uranium mines

Furuta, Sadaaki; Ito, Kimio; Ishimori, Yuu

Journal of Environmental Radioactivity, 62(1), p.97 - 114, 2002/00

 Times Cited Count:17 Percentile:37.21(Environmental Sciences)

None

44 (Records 1-20 displayed on this page)