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Takemoto, Noriyuki; Kimura, Nobuaki; Ooka, Makoto; Ishitsuka, Etsuo; Kaminaga, Masanori; Ishihara, Masahiro; Suzuki, Masahide
no journal, ,
In order to support global expansion of nuclear power industry, the nuclear Human Resource Development (HRD) is addressed one of urgent issues because of the lack of nuclear engineers. In this situation, the training course for foreign young researchers and engineers was held at JMTR in JFY 2012, and 16 trainees from Indonesia, Kazakhstan, Malaysia, Thailand and Poland had studied for 3 weeks. The training course contains basic lecture and practice on the neutronic and thermal calculations for irradiation tests in the JMTR, training of reactor operation by a simulator for materials testing reactors, lecture for Fukushima Dai-ichi NPP accident, etc. The nuclear HRD initiative program sponsored by the MEXT, the training course using the JMTR and the related facilities, has also been carried out in every year since JFY 2010 for domestic students and engineers. The 4th training course with 20 trainees and the 5th training course with 15 trainees were held in JFY 2012.
Takemoto, Noriyuki; Kimura, Nobuaki; Ooka, Makoto; Kaminaga, Masanori; Hotta, Koji*; Tamura, Kazuo*
no journal, ,
A simulator for materials testing reactors was developed in order to utilize for a nuclear human resource development and to promote the partnership with developing countries which have a plan to introduce nuclear power plant and/or experimental research reactor. The simulator is designed based on JMTR, and simulates normal, transient and accident conditions, and also irradiation tests such as material testing under BWR condition. The simulator is composed of a computer system, control panels with large-size displays for reactor control, process control, irradiation facility control and an instruction. In the simulation, the reactor is operated with cooling system for 30 days a cycle at 50 MWth same as the JMTR. Outputs, such as neutron flux, temperature and flow rate in the core are shown in real time in collaboration with Excel.
Kaminaga, Masanori; Tanimoto, Masataka; Ooka, Makoto; Ishihara, Masahiro; Kusunoki, Tsuyoshi; Komori, Yoshihiro; Suzuki, Masahide
no journal, ,
The Japan Materials Testing Reactor (JMTR) in Japan Atomic Energy Agency (JAEA) is a light water cooled tank type reactor with 50 MW thermal power. From its first criticality in March 1968, the JMTR has been utilized for fuel/material irradiation examinations of LWRs, HTGR, fusion reactor as well as for RI productions. In August 2006, the JMTR operation was once stopped in order to have a check & review for the reoperation which was discussed by internal as well as external committees. As a result of the national discussion, the JMTR was determined, finally, to restart after necessary refurbishment works. The refurbishment was started from the beginning of JFY 2007, and replaced were motors of primary and secondary cooling pumps, nuclear instrumentation system, process control system, safety protection system and so on. The refurbishment was finished in March 2011 taking four years as planned schedule. Unfortunately, at the end of the JFY 2010 on March 11, the Great-Eastern-Japan-Earthquake occurred, and functional tests before the JMTR restart, such as cooling system, reactor control system and so on, were delayed by the earthquake. Moreover, a detail inspection found some damages such as small cracks in the concrete structure. Consequently, the restart of the JMTR will delay from June 2011 to this year. Now, the safety evaluation after the earthquake disaster is being carried out aiming at the restart of the JMTR. The renewed JMTR will be started from JFY 2012 and operated for a period of about 20 years until around JFY 2030. Expected utilization fields after reoperation will be a safety research of LWRs for materials/fuels, basic research for nuclear engineering such as HTGR fuels/materials, fusion reactor materials, industrial use such as production of Mo-99 for medical use, and education & training of nuclear scientists and engineers.