Atomic Energy Society of Japan最新文献_第4页

Role of the French Parliamentary Office in Changing Nuclear Energy Policy 法国议会办公室在改变核能政策中的作用

Atomic Energy Society of Japan Pub Date : 2018-01-01 DOI: 10.3327/TAESJ.J17.011

K. Kimura, H. Kimura

引用次数: 0

Neutron Radiography Characteristics of Transfer Exposure Method Using X-ray Imaging Plate x射线显像板转移曝光法的中子照相特性

Atomic Energy Society of Japan Pub Date : 2018-01-01 DOI: 10.3327/TAESJ.J17.002

Hiroyuki Uno, Ryuji Uemoto, K. Nittoh, Shiro Sogabe, Yukio Sonoda, Masatoshi Kawashima

引用次数: 0

Decontamination of Radioactive Concrete Waste and Reuse of Aggregate Using Pulsed Power Technology 脉冲功率技术对放射性混凝土废料的净化及骨料再利用

Atomic Energy Society of Japan Pub Date : 2018-01-01 DOI: 10.3327/TAESJ.J16.037

H. Sakamoto, Y. Akagi, Kazuo Yamada, Y. Tachi, Daisuke Fukuda, Koichi Ishimatsu, M. Matsuda, Nozomi Saito, Jitsuya Uemura, T. Namihira, M. Shigeishi

{"title":"Decontamination of Radioactive Concrete Waste and Reuse of Aggregate Using Pulsed Power Technology","authors":"H. Sakamoto, Y. Akagi, Kazuo Yamada, Y. Tachi, Daisuke Fukuda, Koichi Ishimatsu, M. Matsuda, Nozomi Saito, Jitsuya Uemura, T. Namihira, M. Shigeishi","doi":"10.3327/TAESJ.J16.037","DOIUrl":"https://doi.org/10.3327/TAESJ.J16.037","url":null,"abstract":"Concrete debris contaminated with radioactive cesium and other nuclides has been generated by the accident in the Fukushima Dai-ichi nuclear power plant. Moreover, there is concern that a large amount of radioactive concrete waste will be generated by the decommissioning of nuclear power plants in the future. Although conventional techniques are effective in decontaminating concrete with ﬂat surfaces such as ﬂoors and walls, it is not clear what techniques to apply for decontaminating radioactive concrete debris. In this study, focusing on a pulsed power discharge technique, fundamental experimental work was carried out and the applicability of the technique to decontaminating radioactive concrete debris associated with the accident in the Fukushima Dai-ichi nuclear power plant was evaluated. The decontamination of concrete by applying the aggregate recycling technique using the pulsed power discharge technique was evaluated by measuring the radioactivity concentration of the divided aggregate and sludge from the contaminated concrete using a Ge-semiconductor detector. It indicated a reduction of the radioactivity concentration in the recovered aggregate and an increase in the radioactivity concentration in the sludge. These ﬁndings suggest that the division of the contaminated concrete debris into aggregate and sludge could result in the decontamination and reuse of the aggregate, which would reduce the amount of contaminated concrete debris.","PeriodicalId":8595,"journal":{"name":"Atomic Energy Society of Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72732348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Study on Enhancing the Effectiveness of Periodic Safety Review of Nuclear Power Plants 提高核电厂定期安全审查有效性的研究

Atomic Energy Society of Japan Pub Date : 2018-01-01 DOI: 10.3327/TAESJ.J16.038

A. Yamamoto, N. Sekimura

{"title":"A Study on Enhancing the Effectiveness of Periodic Safety Review of Nuclear Power Plants","authors":"A. Yamamoto, N. Sekimura","doi":"10.3327/TAESJ.J16.038","DOIUrl":"https://doi.org/10.3327/TAESJ.J16.038","url":null,"abstract":"The Periodic Safety Review （ PSR ） is a continuous safety enhancement process to improve overall plant safety. The report on the Fukushima Daiichi accident issued by the IAEA indicated that the ap-proach to PSR in Japan was not fully in line with guidance from the IAEA. PSR was originally an ef ﬁ cient means of improving the safety level of installations, and to make a decision on the continuation of the reactor operation for the next decade. In order to achieve the objectives of PSR, plant operators need to review their operating experience as well as reassess their past review and identify ﬁ ndings which lead to improvements of plant safety. It is also important that regulators participate in the pre-paratory work of the review to identify the issues and the outcome of the review. To improve the ef ﬁ ciency and effectiveness of this activity, the regulators need to develop a technical information base re ﬂ ecting the safety inspection carried at the sites to identify issues. The plant operator also needs to reassess the past PSR to verify the validity of the review. Regulators and plant operators should con-tinue to make bilateral efforts through PSR and deliver improvements of safety throughout the plant life.","PeriodicalId":8595,"journal":{"name":"Atomic Energy Society of Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80081872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Measurement Example of Radiation Dose Rate in Private Premises Contaminated by the Fukushima Nuclear Power Plant Accident 受福岛核电站事故污染的私人处所辐射剂量率的测量实例

Atomic Energy Society of Japan Pub Date : 2018-01-01 DOI: 10.3327/TAESJ.J17.003

Kunio Ito

引用次数: 1

Dependence of dose rate measurement in the environment on crystal configuration of scintillation detectors 环境中剂量率测量与闪烁探测器晶体结构的关系

Atomic Energy Society of Japan Pub Date : 2018-01-01 DOI: 10.3327/TAESJ.J16.039

S. Tsuda, M. Tanigaki, Tadayoshi Yoshida, R. Okumura, Kimiaki Saito

{"title":"Dependence of dose rate measurement in the environment on crystal configuration of scintillation detectors","authors":"S. Tsuda, M. Tanigaki, Tadayoshi Yoshida, R. Okumura, Kimiaki Saito","doi":"10.3327/TAESJ.J16.039","DOIUrl":"https://doi.org/10.3327/TAESJ.J16.039","url":null,"abstract":"Ambient dose equivalent （ H ＊（ 10 ）） rates in the environment in Fukushima prefecture were measured by NaI （ Tl ） and CsI （ Tl ） scintillation detectors whose crystal shapes are different. The indicated values of H ＊（ 10 ） measured by a CsI （ Tl ） scintillation detector with a rectangular parallelepiped crystal （ 13 × 13 × 20 mm 3 ） were approximately 40 ％ higher than those of a CsI （ Tl ） scintillation detector with a rectangular parallelepiped crystal （ 38 × 38 × 25 mm 3 ） and 20 ％ higher than those of a NaI （ Tl ） scintillation detector with a cylindrical crystal （ 25.4 mm in diameter and height ） in the case where G （ E ） functions were used in parallel irradiation geometry. It was found that cylindrical crystals are more appropriate than rectangular parallelepiped crystals with respect to directional dependence in environmental dose rate monitoring. However, using a spectrum-dose conversion operator determined in a rotational irradiation geometry, the values of H ＊（ 10 ） agreed within 10 ％ among all the detectors. These results indicate that the directional dependence of scintillation detectors should be carefully considered for H ＊（ 10 ） dose rate monitoring in the environment.","PeriodicalId":8595,"journal":{"name":"Atomic Energy Society of Japan","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81436231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Current Status on First Principles Calculation and its Progress of Application on Nuclear Energy Field 第一性原理计算的现状及其在核能领域的应用进展

Atomic Energy Society of Japan Pub Date : 2017-07-24 DOI: 10.3327/jaesjb.60.9_552

M. Machida

引用次数: 0

三次元中性子輸送・燃焼計算に基づくBWR使用済燃料内の中性子源核種242Cm・244Cm組成および中性子放出率の分布基于三维中子输送和燃烧计算的BWR已使用燃料内中子源核素242cm和244cm组成及中子释放率分布

Atomic Energy Society of Japan Pub Date : 2017-07-21 DOI: 10.3327/TAESJ.J16.020

大貴渡辺, 高範亀山

引用次数: 0

抽出剤–［C2mim］［Tf2N］混合相を用いた協同効果を伴う燃料デブリ由来の放射性核種の抽出挙動の基礎研究提取剂—使用[C2mim] [Tf2N]混合相的协同效应从燃料碎片提取放射性核素行为的基础研究

Atomic Energy Society of Japan Pub Date : 2017-06-27 DOI: 10.3327/TAESJ.J16.025

Yuji Yada, T. Arai

引用次数: 0

R&D for accuracy improvement of neutron nuclear data on minor actinides 改进微量锕系元素中子核数据精度的研究与开发

Atomic Energy Society of Japan Pub Date : 2017-01-23 DOI: 10.1051/EPJCONF/20159306001

A. Kimura

引用次数: 4