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JAEA Reports

Proceedings of 3rd JAERI-JNC Joint Conference on Nuclear Safety Research; July 29, 2005, Tokyo

Secretariat of Third JAERI-JNC Joint Conference on Nuclear Safety Research

JAEA-Conf 2006-002, 103 Pages, 2006/03

JAEA-Conf-2006-002.pdf:8.36MB

The present report is the proceedings of third JAERI-JNC joint conference on nuclear safety research held on July 29, 2005 in Tokyo before integration of JAERI and JNC to JAEA. The conference was held for those who are relevant to nuclear industries and regulatory organizations, and general public. The nuclear safety research has been conducted in both institutes according to the Five-Year Program for Nuclear Safety Research established periodically by the Nuclear Safety Commission (NSC) and needs from the regulatory organizations. The objectives of the conference are to present its recent results and to collect views and opinions from the participants for its future program through the discussion after each presentation and panel discussion on how to conduct efficiently the nuclear safety research in the New Organization. A total of 234 people participated in the conference mainly from the nuclear industries and regulatory organizations. Through vigorous exchange of views in the panel discussion and descriptions on the questionnaires, it was obviously expressed that expectation to the safety research of the New Organization was very strong. Moreover, many valuable views were given for carrying out the nuclear safety research in the new organization and for holding a conference in future. Based on these results, it was believed that the objectives of this conference were almost achieved.

JAEA Reports

Proceedings of 2nd JAERI-JNC Joint Conference on Nuclear Safety Research; February 6, 2004, Tokyo

Secretariat of Second JAERI-JNC Joint Conference on Nuclear Safety Research

JAERI-Conf 2004-013, 97 Pages, 2004/08

JAERI-Conf-2004-013.pdf:18.89MB

no abstracts in English

Journal Articles

Analysis of radiation streaming experiment through a labyrinth at TIARA HIR1

Oguri, Tomomi*; Nakashima, Hiroshi; Tanaka, Susumu; JAERI-University Collaboration Group for Accelerator Shielding Study

Journal of Nuclear Science and Technology, 41(Suppl.4), p.54 - 57, 2004/03

http://www.tandfonline.com/doi/abs/10.1080/00223131.2004.10875635

In shielding design of proton accelerator facilities, it applies simplified formulae and Monte Carlo calculation methods to calculation radiation streaming of access way and duct. A radiation streaming experiment was carried out in order to validate accuracy of intermediate energy region in labyrinth of access way connected to the 1st heavy ion room in TIARA at JAERI. In this paper, it is described comparing of measured data and calculations by MCNP-4B Monte Carlo code and simplified formulae. In Monte Carlo calculations, HILO86 constant set and LA150 was used for cross section data. The results of this experimental analysis show the accuracy of 50% errors for Monte Carlo calculations overall and a factor of 3 for simplified formulae. So applicability for these calculation methods in region of intermediate energy is validated.

JAEA Reports

Proceedings of the Symposium on the Joint Research Project between JAERI and Universities "Backend Chemistry for Fuel Cycle" and "Advanced Radiation Application Research"; Results of the 4th Phase Joint Research Project and the Future Plan, February 18, 2003, The University of Tokyo, Sanjyo Hall

Committee for the Joint Research Project between JAERI and Universities; Committee for the Universities' JAERI Collaborative Research

JAERI-Conf 2003-015, 103 Pages, 2003/11

JAERI-Conf-2003-015.pdf:8.92MB

The present report describes the Proceedings of the Symposium on the Joint Research Project between JAERI and Universities - Results of the 4th Phase Joint Research Project and the Future Plan -, held at the University of Tokyo on February 18, 2003. The joint research project composed of the backend chemistry project and the advanced radiation application project was to be concluded in the end of March 2003. Hence the symposium was held in order to review the results obtained in the 4th phase project and to exchange ideas on the effective measures for the future joint collaboration in view of the past activities.

JAEA Reports

Proceedings of JAERI-JNC Joint Conference on Nuclear Safety Research; March 7, 2003, Tokyo

Secretariat of JAERI-JNC Joint Conference on Nuclear Safety Research

JAERI-Conf 2003-013, 110 Pages, 2003/08

JAERI-Conf-2003-013.pdf:10.97MB

no abstracts in English

JAEA Reports

Investigation report on the ruptured glove of ash removing room in the waste treatment building No.1 in JAERI Tokai Research Establishment

JAERI's Internal Investigation Group on the Ruptured Glove; Department of Decommissioning and Waste Management

JAERI-Review 2002-017, 121 Pages, 2002/09

JAERI-Review-2002-017.pdf:13.36MB

On November 21st, 2001, the glove rupture arose at an incinerator of Waste Treatment Building No.1 in JAERI Tokai Research Establishment. In order to examine the cause and recurrence prevention measure of the rupture, JAERI's Internal Investigation Group on the Ruptured Glove investigated the conditions of the incinerator including ash removing equipment and the glove, types and properties of waste which was incinerated on that day, and background factor of the trouble in cooperation with Department of Decommissioning and Waste Management.As the result, the causes of the rupture were that the solidification of liquid scintillator waste was insufficient, that the protective cover of the glove does not have pressure resistance and the degraded glove was used. For preventing the recurrence of the trouble, the direct confirmation of the solidification condition, the installation of protective cover for the glove, the improvement of the management of the glove, review of manuals and education and training were carried out.

JAEA Reports