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Journal Articles

Arrangements for telephone consultation on radiation health effects in a nuclear emergency in Japan; Lessons learned from the nuclear accident in Fukushima, Japan, 2011

Okuno, Hiroshi; Kawakami, Takeshi; Watanabe, Fumitaka; Horikoshi, Hidehiko*

Journal of Disaster Research, 18(8), p.911 - 917, 2023/12

In response to residents' concerns about the radiation health effects following the nuclear accidents at the Fukushima Daiichi Nuclear Power Station of the Tokyo Electric Power Company in March 2011, the Japan Atomic Energy Agency (JAEA) established a telephone consultation system. Eight toll-free telephone lines were prepared, and employees with knowledge of radiation health effects were assigned for consultation. Approximately 35,000 consultations were conducted from March 17, 2011, to September 18, 2012. The results of the text mining analysis revealed that the greatest source of anxiety was the impact on children's health from radiation. The JAEA's system for telephone consultation was improved following this telephone consultation experience. The description of telephone hotlines in the International Atomic Energy Agency (IAEA) guide, GSG-14, was discussed for further improvements of the JAEA's telephone consultation system.

Journal Articles

Calculations of safe distance from the point of a severe accident during transportation of a package containing spent nuclear fuels

Watanabe, Fumitaka; Okuno, Hiroshi

Proceedings of 18th International Symposium on the Packaging and Transport of Radioactive Materials (PATRAM 2016) (DVD-ROM), 9 Pages, 2016/09

This paper shows our calculations on the effects of a radiological release by assuming a severe accident in nuclear material transportation. Following recalculations of safe distance from the point of a severe accident during transportation of a transportation cask TN12 typically used in France containing spent nuclear fuel, and calculations to replicate the "Regulatory Guide: Emergency Preparedness for Nuclear Facilities", a similar calculation was made for a spent fuel transportation cask NFT-14P that was typically utilized in Japan instead of TN12. The safe distance was calculated to be about 30 m. The above calculations were made with the HotSpot codes which adopted the Gauss plume model and had been developed by the USA. Some additional calculations were made with EyesAct, which was developed and used in Japan, adopting also the Gauss plume model, to compare calculation results.

JAEA Reports

Annual report of Nuclear Emergency Assistance and Training Center (April 1, 2009 - March 31, 2010)

Kanamori, Masashi; Shirakawa, Yusuke; Yamashita, Toshiyuki; Okuno, Hiroshi; Terunuma, Hiroshi; Ikeda, Takeshi; Sato, Sohei; Terakado, Naoya; Nagakura, Tomohiro; Fukumoto, Masahiro; et al.

JAEA-Review 2010-037, 60 Pages, 2010/09

JAEA-Review-2010-037.pdf:3.11MB

When a nuclear emergency occurs in Japan, the Japan Atomic Energy Agency (JAEA) provides technical support to the National government, local governments, police, fire station and license holder etc. They are designated public organizations conforming to the basic law on emergency preparedness and the basic plan for disaster countermeasures. The Nuclear Emergency Assistance & Training Center (NEAT) of JAEA provides a comprehensive range of technical support activities to an off-site center in case of a nuclear emergency. Specifically, NEAT gives technical advice and information, provides for the dispatch of specialist as required, supplies emergency equipments and materials to the national government and municipal office. NEAT provide various lectures and training course concerning nuclear disaster prevention for those personnel taking an active part in emergency response organizations at normal time. And NEAT researches on nuclear disaster prevention and also cooperate with international organizations. This annual report summarized the activities of JAEA/NEAT in the fiscal year 2009.

Journal Articles

Emergency response to terrorist attack with radiological dispersal device within urban area

Nagai, Haruyasu; Watanabe, Fumitaka; Endo, Kuniaki

Nihon Genshiryoku Gakkai-Shi ATOMO$$Sigma$$, 51(11), p.816 - 818, 2009/11

It is important to consider and develop countermeasures against Radiological Dispersal Device (RDD) incident in an urban environment. In the U.S. functions of countermeasure against terrorist attack has been developed, maintained and disseminated to the public by conducting regular emergency exercises. Here, we review the full-scale emergency exercise against RDD incident in an urban environment (EMPIRE09) held at Albany in the State of New York in June 2009. The National Response Framework of the U.S. for nuclear and radiological incidents is also explained. Finally, as our recommendation to the domestic countermeasures against terrorist attack, analyses on the difference of emergency response frameworks between Japan and the U.S. and important items to be considered are provided for consideration of the state of countermeasure against RDD incident in an urban environment.

JAEA Reports

Annual report of Nuclear Emergency Assistance and Training Center (April 1, 2008 - March 31, 2009)

Kanamori, Masashi; Hashimoto, Kazuichiro; Terunuma, Hiroshi; Ikeda, Takeshi; Omura, Akiko; Terakado, Naoya; Nagakura, Tomohiro; Fukumoto, Masahiro; Watanabe, Fumitaka; Yamamoto, Kazuya; et al.

JAEA-Review 2009-023, 61 Pages, 2009/09

JAEA-Review-2009-023.pdf:8.49MB

When a nuclear emergency occurs in Japan, the Japan Atomic Energy Agency (JAEA) provides technical support to the National government, local governments, police, fire station and license holder etc. They are Designated Public Organizations conforming to the Basic Law on Emergency Preparedness and the Basic Plan for Disaster Countermeasures. The Nuclear Emergency Assistance and Training Center (NEAT) of JAEA provides a comprehensive range of technical support activities to an Off-Site Center in case of a nuclear emergency. Specifically, NEAT gives technical advice and information, provides for the dispatch of specialist as required, supplies emergency equipments and materials to the Joint Council of Nuclear Disaster Countermeasures, which meets at the Off-Site Center. NEAT provide various lectures and training course concerning nuclear disaster prevention for those personnel taking an active part in emergency response organizations at normal time. And NEAT researches on nuclear disaster prevention and also cooperate with international organizations. This annual report summarized the activities of JAEA/NEAT in the fiscal year 2008.

JAEA Reports

Development of emergency information clearinghouse for nuclear emergency management

Watanabe, Fumitaka; Yamamoto, Kazuya; Sajiki, Kenjiro; Yasu, Sadanori*; Igarashi, Miyuki*

JAEA-Technology 2008-025, 63 Pages, 2008/03

JAEA-Technology-2008-025.pdf:2.71MB

The larger the scale of an accident, the more closely cooperation is needed between concerned parties for appropriate and timely response, especially if they are located apart from each other. The past nuclear accidents revealed that they failed to share important information with each other and such a situation caused unnecessary confusion in public information. Based on lessons learned from accidents, JAEA developed the Emergency Information Clearinghouse (ECHO). Information is fed into a secured server from each PC. Unified information on the server can be chronologically listed through a web browser. This web-based system enables separately located parties to share proper information in a timely manner and minimize the load of managing a great deal of information. The ECHO has been in operation 24/7 on a network for nuclear emergency response and connects nationwide 22 off-site centers, and several authorities concerned. The system has been used during for training and drills.

Journal Articles

Improvement of Emergency Information Clearinghouse (ECHO) for nuclear emergency management

Watanabe, Fumitaka

Proceedings of 2nd International Joint Topical Meeting on Emergency Preparedness and Response and Robotics and Remote Systems (CD-ROM), p.9 - 14, 2008/03

The JCO criticality accident in 1999 revealed that parties concerned had no effective tools to share important information about the accident with each other and such a situation caused unnecessary confusion and unease in society. Based on lessons learned from the accident, the Japan Atomic Energy Agency (JAEA) developed the Emergency Information Clearinghouse (ECHO) in 2002. ECHO is in operation as an information tool on a dedicated-line network for nuclear emergency response. ECHO connects nationwide 22 off-site centers, central government emergency operations centers, and the Nuclear Emergency Assistant and Training Center (NEAT) of JAEA. Various points to be improved have been suggested through the practical use in nuclear emergency drills. ECHO has become an efficient information sharing tool through several improvements. The system enables the parties separately located to share proper information in a timely manner and minimize the load of managing a large amount of information.

Journal Articles

Activity of the nuclear emergency assistance and training center; Strengthening Co-operation with parties in normal circumstances

Watanabe, Fumitaka; Matsui, Tomoaki; Nomura, Tamotsu

Proceedings of International Conference on Nuclear Energy System for Future Generation and Global Sustainability (GLOBAL 2005) (CD-ROM), 4 Pages, 2005/10

None

JAEA Reports

Inquiry Report about the Nuclear Emergency Response System and Public Information in the United States

Yamamoto, Kazuya; Watanabe, Fumitaka; Matsuoka, Toshio*; Kozawa, Toshikatsu*

JNC TN1420 2005-001, 366 Pages, 2005/06

JNC-TN1420-2005-001.pdf:27.16MB

In relation to

Journal Articles

Study on Tracking System for Radioactive Material Transport

; ; Nomura, Tamotsu; Nakagome, Yoshihiro*

Dai-14-Kai Hoshasei Busshitsu No Yuso Yoki To Yuso Ni Kansuru Kokusai Shimpojiumu, 0 Pages, 2004/00

The application of the fluoride volatility process in the reprocessing of fuel from the fast breeder reactor is regarded as one of the economical methods. Plutonium hexafluoride (PuF6), however, reacting with fluorine (F2) and plutonium dioxide (PuO2) as the raw material, is in an unstable condition and tends to remain as a solid compound in the process after decomposing into plutonium tetrafluoride (PuF4). Suitable conditions should be established for the practical use of this process. One of them is to enhance the stability of PuF6. The behaviour of plutonium fluorination and relevant chemical reactions were investigated by referring to sundry literature and by thermodynamic calculation. It was then compared with recent data from laboratory scale experiments for this paper. Results from the theoretical analysis agreed with experimental observation that PuF6 could be formed stably under a high temperature condition (approx.1000 K) with over supply of figher concentration of F2.

JAEA Reports

None

Oshima, Hirofumi; Hayashi, Naomi; ; Muto, Shigeo; ; ;

JNC TN8420 99-003, 46 Pages, 1998/11

JNC-TN8420-99-003.pdf:8.16MB

None

JAEA Reports

None

*; ; ;

JNC TY1520 98-001, 72 Pages, 1998/10

JNC-TY1520-98-001.pdf:2.99MB

no abstracts in English

Journal Articles

None

Sudo, Toshiyuki; ; ;

Donen Giho, (66), p.77 - 81, 1988/06

no abstracts in English

Oral presentation

Radioactive terrorist events and these countermeasure; Current circumstance

Watanabe, Fumitaka

no journal, , 

no abstracts in English

Oral presentation

Improvement of emergency information for nuclear emergency management

Watanabe, Fumitaka

no journal, , 

JCO accident revealed that parties concerned had no effective tools to quickly share important information about the accident with each other. Some application examples of the network-based information system for emergency management have been employed. Based on lessons, the Japan Atomic Energy Agency (JAEA) developed the Emergency Information Clearinghouse (ECHO) in 2002. ECHO has been in operation 24/7 as an information tool on a dedicated-line network for nuclear emergency response and connects nationwide 22 off-site centers, 3 central government emergency operations centers and our organization named NEAT. ECHO has been used for trainings and drills for dozens of times to date. ECHO has evolved to become an efficient information sharing tool through several improvements. The system enables to unify information, enables to the separately located parties to share proper information in a timely manner and enables to minimize the load of managing a great deal of information.

Oral presentation

The Recent security issues of nuclear and radioactive materials

Watanabe, Fumitaka

no journal, , 

On April, 2010, President Obama hosted a Nuclear Security Summit in Washington D.C., and IAEA also emphasize to prevent nuclear terrorism and to enhance international cooperation. In this talk session, two guests, Mr. Jun Yoshino, counselor for atomic energy, cabinet office and I discuss about the recent security issues of nuclear and radioactive materials and installations. I also introduce my observation report of the latest radioactive dispersion devise consequence management exercise in the U.S. named as "Empire 09".

Oral presentation

Key features of radioactive material transport emergency response and preparedness in Japan, and its comparison with major countries

Watanabe, Fumitaka

no journal, , 

Radioactive and nuclear material is used in Japan extensively in industry, medicine, electrical power generation and nuclear fuel cycle. Also many packages of containing radioactive and nuclear material are consigned for transport. In the near future, there are expected to expand the use and to increase in the frequency of incidents. We have researched for emergency preparedness and response of radioactive material transport in major countries, and made a comparison with Japan. Referring international aspects and recent trends, we considered some features to enhance emergency response capability in Japan.

Oral presentation

The Basic knowledge and the protection of nuclear and radioactive material

Watanabe, Fumitaka

no journal, , 

NBC management seminar for local officer will be held by Tokyo Metropolitan Government. The presenter will introduce some information, such as the basic knowledge of nuclear and radioactive material, the present status of the Fukushima accident, and recent RDD exercise in the US, to local staff who will participate with protecting measure for public in actual incident.

Oral presentation

The Concept of the IAEA safety culture and security culture

Watanabe, Fumitaka

no journal, , 

The concept of the IAEA nuclear safety culture and nuclear security culture are illustrated by giving several examples.

Oral presentation

The Radiation monitoring technology in case of nuclear emergency

Watanabe, Fumitaka

no journal, , 

The radiation measurement technology that is applied in case of nuclear emergency is illustrated with some overseas advanced examples.

22 (Records 1-20 displayed on this page)