Refine your search:     
Report No.
 - 
Search Results: Records 1-14 displayed on this page of 14
  • 1

Presentation/Publication Type

Initialising ...

Refine

Journal/Book Title

Initialising ...

Meeting title

Initialising ...

First Author

Initialising ...

Keyword

Initialising ...

Language

Initialising ...

Publication Year

Initialising ...

Held year of conference

Initialising ...

Save select records

Journal Articles

Upgrade of the 3-MeV linac for testing of accelerator components at J-PARC

Kondo, Yasuhiro; Hirano, Koichiro; Ito, Takashi; Kikuzawa, Nobuhiro; Kitamura, Ryo; Morishita, Takatoshi; Oguri, Hidetomo; Okoshi, Kiyonori; Shinozaki, Shinichi; Shinto, Katsuhiro; et al.

Journal of Physics; Conference Series, 1350, p.012077_1 - 012077_7, 2019/12

 Times Cited Count:0 Percentile:100

We have upgraded a 3-MeV linac at J-PARC. The ion source is same as the J-PARC linac's, and the old 30-mA RFQ is replaced by a spare 50-mA RFQ, therefore, the beam energy is 3 MeV and the nominal beam current is 50 mA. The main purpose of this system is to test the spare RFQ, but also used for testing of various components required in order to keep the stable operation of the J-PARC accelerator. The accelerator has been already commissioned, and measurement programs have been started. In this paper, present status of this 3-MeV linac is presented.

Journal Articles

Introduction and implementation of physical protection measures including trustworthiness program at Tokai Reprocessing Facilities

Nakamura, Hironobu; Kimura, Takashi; Yamazaki, Katsuyuki; Kitao, Takahiko; Tasaki, Takashi; Iida, Toru

Proceedings of International Conference on Physical Protection of Nuclear Material and Nuclear Facilities (Internet), 9 Pages, 2018/09

After the accident of Fukushima Daiichi Nuclear Power Station, to develop effective security measures based on the lesson learned from such crisis and to meet the IAEA Nuclear Security Recommendations (INFCIRC/225/Rev.5), NRA in Japan made a partial amendment of the regulations concerning the reprocessing activity in 2012. The Tokai reprocessing facility implemented all of those security measures by the end of March 2014. Those new measures help us to keep high degree of security level and contributed to our planned operations to reduce the potential risk of the plant. On the other hand, the trustworthiness program was newly introduced in 2016, based on the trustworthiness policy determined by NRA. The implementing entity of the program is JAEA for the Tokai Reprocessing Facility and is required for both the persons afford unescorted access to Category I and II, CAS/SAS, and the persons afford access to the sensitive information. Those who are involved this program will be judged before engaging the work whether they might act as insider to cause or assist radiological sabotage or unauthorized removal of nuclear material, or leak sensitive information. The program is expected as a measure against insider at reprocessing facilities, and is expected to be enforced around the autumn of 2017. As well as the establishment of security measures, the promoting nuclear security culture for all employees was a big challenge. The Tokai reprocessing facility have introduced several security culture activities, such as case study education of security events done by a small group and putting up the security culture poster and so on. This paper presents introduction and implementation with effectiveness of security measures in the Tokai reprocessing facilities and the future security measures applied to the reprocessing facilities are discussed.

Journal Articles

Discussion of effective insider threat mitigation method at reprocessing plant

Nakamura, Hironobu; Kitao, Takahiko; Yamada, Hiroyuki; Kono, Soma; Kimura, Takashi; Tasaki, Takashi

Proceedings of INMM 59th Annual Meeting (Internet), 9 Pages, 2018/07

Journal Articles

Report on activities related to fostering nuclear security culture in Tokai Reprocessing Facility

Kitao, Takahiko; Takeuchi, Yoshikatsu; Kimura, Takashi; Kojima, Junji; Shioya, Satoshi; Tasaki, Takashi; Nakamura, Hironobu

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

In order to ensure and strengthen nuclear security measures, an active cultivation of nuclear security culture implemented by both entire organization and individual persons is vitally essential. Tokai reprocessing facility has conducted various activities such as case study education and training, yearly posters and patrolling the site by upper-level management that all employees hold a deep rooted belief that there is a credible insider and outsider threat, and that nuclear security is important. These activities are conducted in order to establish the foundation of beliefs and attitudes of effective nuclear security culture based on the IAEA guideline. This report introduces our activities fostering nuclear security culture in Tokai reprocessing facility that the evaluation and the continuous improvement of bidirectional activities by both top-down from multiple management levels and bottom-up from individual employee, and our challenges need to be worked on for the future.

JAEA Reports

Report on the research through the U.S. DOE "The International Search and Consequence Management Workshop (ISCM-WS)"

Kawakami, Takeshi; Tasaki, Takashi

JAEA-Review 2011-028, 47 Pages, 2011/12

JAEA-Review-2011-028.pdf:3.25MB

The International Search and Consequence Management Workshop (ISCM-WS) that was organized by the U.S. Department of Energy (DOE) took place from May 17th to May 20th, 2010. The Aim of this Workshop is to build and enhance the global capacity to prevent and respond to nuclear and radiological emergencies, and it directly supports the aims of global initiative to combat nuclear terrorism. DOE brought together 92 officials from 26 countries and 3 officials from IAEA in this Workshop. DOE introduced two matters in USA, First is response against nuclear and radiological terrorisms and second is technology, systems, activity for consequence management. This review report summarized the observation in the ISCM-WS including activity of DOE/NNSA's Search Response Team and activity of consequence management.

Journal Articles

Development of a spin flipper for an application of a neutron magnetic device

Oku, Takayuki*; Sakai, Kenji*; Adachi, Tomohiro*; Ikeda, Kazuaki*; Shimizu, Hirohiko*; Maruyama, Ryuji*; Hino, Masahiro*; Tasaki, Seiji*; Kiyanagi, Yoshiaki*; Kamiyama, Takashi*; et al.

Physica B; Condensed Matter, 335(1-4), p.226 - 229, 2003/07

 Times Cited Count:7 Percentile:58.72

no abstracts in English

Journal Articles

Recent activities and progress on PORE reflectometer

Takeda, Masayasu; Torikai, Naoya*; Ino, Takashi*; Tasaki, Seiji*

KENS Report-XIV, p.205 - 206, 2003/00

no abstracts in English

Journal Articles

EARLY FECAL EXCRETION OF INHALED PLUTONIUM

Kurihara, Osamu; Tasaki, Takashi; Momose, Takumaro; Hayashi, Naomi; Shinohara, Kunihiko

Radiation Protection Dosimetry, 102(2), p.137 - 141, 2002/00

 Times Cited Count:7 Percentile:52.93(Environmental Sciences)

None

Journal Articles

EARLY FAECAL EXCRETION OF INHALED PLUTONIUM

Takasaki, Koji; Kurihara, Osamu; Tasaki, Takashi; Momose, Takumaro; Maruo, Yoshihiro; Shinohara, Kunihiko

THE 47TH ANNUAL CONFERENCE ON BIOASSAY,ANALYTICAL & ENVIRONMENTAL RADIOCHEMISTRY, 0 Pages, 2002/00

None

JAEA Reports

Study on Evaluation of Internal Exposure Dose

Miyahara, H.*; Narita, N.*; Ikeda, Keiichi*; Kato, Y.*; Fujiki, K.*; Momose, Takumaro; Tasaki, Takashi; Kurihara, Osamu; Hayashi, Naomi

JNC-TY8400 2001-002, 81 Pages, 2001/07

JNC-TY8400-2001-002.pdf:2.35MB

no abstracts in English

JAEA Reports

None

Ishida, Junichiro; ; ; Tasaki, Takashi

PNC-TN8410 95-078, 42 Pages, 1995/01

PNC-TN8410-95-078.pdf:0.99MB

None

JAEA Reports

None

Ishida, Junichiro; Ninomiya, Kazushige; Tasaki, Takashi; Koike, Yuji*; *

PNC-TN8410 95-041, 32 Pages, 1994/12

PNC-TN8410-95-041.pdf:0.77MB

None

JAEA Reports

None

Ishida, Junichiro; ; ; Tasaki, Takashi; *

PNC-TN8410 93-290, 20 Pages, 1993/07

PNC-TN8410-93-290.pdf:0.9MB

None

Oral presentation

Nuclear security measures at nuclear fuel facilities, 1; Trust worthiness program for insider mitigation method

Yamada, Hiroyuki; Kono, Soma; Tasaki, Takashi; Kojima, Junji; Kitao, Takahiko; Nakamura, Hironobu

no journal, , 

no abstracts in English

14 (Records 1-14 displayed on this page)
  • 1