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Research Reactor Utilization Division
JAERI-Review 2005-034, 450 Pages, 2005/09
JAERI-Review-2005-034.pdf:38.93MB
no abstracts in English
JRR-4 Operation Division; Research Reactor Utilization Division
JAERI-Tech 2005-042, 58 Pages, 2005/07
Japan Research Reactor No.4 (JRR-4) was shut down manually, due to the control rod insertion failure occurred during the rated power (3,500kW) operation on June 10, 2005. It became evident by the investigation that a screw bolt at the control rod support got loose and blocked the control rod insertion. The failure was recovered through replacement with the new screw bolt. Considering the importance of this event, we decided to inspect all screw bolts over the core that may cause a control rod insertion failure. Furthermore, we decided to carry out periodical inspection about these screw bolts whether they were tightened enough or not. This report describes the result of inspection carried out as the preventive measures.
Takahashi, Toshiyuki; Research Reactor Utilization Division
JAERI-Review 2004-016, 542 Pages, 2004/08
JAERI-Review-2004-016.pdf:74.07MB
no abstracts in English
Research Reactor Utilization Division
JAERI-Review 2003-019, 484 Pages, 2003/07
JAERI-Review-2003-019.pdf:29.68MB
no abstracts in English
Research Reactor Utilization Division
JAERI-Tech 2001-004, 49 Pages, 2001/03
JAERI-Tech-2001-004.pdf:5.55MB
no abstracts in English
Research Reactor Utilization Division
JAERI-Tech 2000-064, 76 Pages, 2000/11
JAERI-Tech-2000-064.pdf:6.61MB
no abstracts in English
JRR-3 Operation Division; Research Reactor Utilization Division
JAERI-Tech 2000-027, p.194 - 0, 2000/03
JAERI-Tech-2000-027.pdf:8.47MB
no abstracts in English