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Inaba, Yoshitomo; Sakamoto, Taichi; Yamaura, Takayuki
JAEA-Technology 2009-080, 22 Pages, 2010/02
JAEA-Technology-2009-080.pdf:7.06MB
The power transient tests for the fuels of light water reactors are to be carried out in the Japan Materials Testing Reactor (JMTR) using capsule-type test facilities, and the integrity of the fuels is to be investigated by the tests. Prior to the irradiation tests of the fuels, the out-of-pile test facility, which had an electric heater pin instead of a test fuel pin, was designed and fabricated to simulate the capsules used in the power transient tests. Using this facility, necessary tests for the planning of the test methods were carried out. In the present report, the outline of the out-of-pile test facility, the test plan and the tests simulating natural convection capsule were described. As a result of the tests, it was found that the power of the heater pin with a diameter of 9.5 mm can achieve to 600 W/cm without transition from nucleate boiling to film boiling under BWR and PWR coolant pressure conditions.
Iimura, Koichi; Sakamoto, Taichi; Kanno, Masaru; Hori, Naohiko
FAPIG, (178), p.14 - 18, 2009/02
At Oarai Research and Development Center, Japan Atomic Energy Agency (JAEA) advances the plan of refurbishing Japan Materials Testing Reactor (JMTR) to start the operation in fiscal 2011. As part of effective use for JMTR, JAEA is planning to product 
Mo, which is a parent nuclide of 
Tc. Tc is most commonly used as a radiopharmaceutical in the field of nuclear medicine. Currently the supplying of Mo is only depend on imports from foreign countries, so JAEA is aiming at domestic production of a part of Mo in cooperation with the industrial circles. In this article, JAEA introduced the Conceptual Plan about the choice and fabric of the irradiation facilities for Mo production, and commercializing equipment after irradiation for Mo production.
Hosokawa, Jinsaku; Kanno, Masaru; Sakamoto, Taichi
JAEA-Technology 2008-038, 24 Pages, 2008/06
JAEA-Technology-2008-038.pdf:2.95MB
At Oarai Research and Development Center, Japan Atomic Energy Agency (JAEA) advances the plan of refurbishing Japan Materials Testing Reactor (JMTR) to start the operation in fiscal 2011. Silicon Semiconductor is used in every Country and every industrial field. Nowadays, the demand of large diameter Silicon Semiconductors are increasing. At JMTR in JAEA Oarai, the production of Silicon Semiconductors utilizing NTD (Neutron Transmutation Doping) Method is investigated. Particularly, this report describes the installation of Silicon Semiconductors producing facility on JMTR. This Report described the Conceptual Study for Silicon Semiconductor Irradiation Facility in JMTR.
Mo production facility in JMTRIimura, Koichi; Hosokawa, Jinsaku; Kanno, Masaru; Kitajima, Toshio; Nakagawa, Tetsuya; Sakamoto, Taichi; Hori, Naohiko; Kawamura, Hiroshi
JAEA-Technology 2008-035, 47 Pages, 2008/06
JAEA-Technology-2008-035.pdf:7.91MB
At Oarai Research and Development Center, Japan Atomic Energy Agency (JAEA) advances the plan of refurbishing Japan Materials Testing Reactor (JMTR) to start the operation in fiscal 2011. As part of effective use for JMTR, JAEA is planning to product Mo, which is a parent nuclide of Tc. Tc is most commonly used as a radiopharmaceutical in the field of nuclear medicine. Currently the supplying of Mo is only depend on imports from foreign countries, so JAEA is aiming at domestic production of a part of Mo in cooperation with the industrial circles. In this article, JAEA described the process, the choice and fabric of the irradiation facilities for Mo production, the technical study of commercializing equipment after irradiation, and the cost study for Mo production.