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Horiguchi, Hironori; Nakamura, Takemi; Motohashi, Jun; Kashimura, Takanori; Ichimura, Shigeju; Sasajima, Fumio
JAEA-Technology 2012-003, 38 Pages, 2012/03
JAEA-Technology-2012-003.pdf:2.55MB
Clinical trials of boron neutron capture therapy (BNCT) for malignant brain tumors and head and neck cancers have been performed at the research reactor JRR-4. BNCT is a kind of radiation therapy using a nuclear reaction with thermal neutrons and boron (
B) elements administered to a patient. The design specifications of all types of reflector elements were changed due to a trouble of a reflector element in JRR-4. In the production of the new reflector elements, they were designed with the influence for the neutron beam facility by the analytical calculation. After the installation of the new reflector elements, the performance of the neutron beam facility was verified by measurement such as a free air experiment and a water phantom experiment. The calculation error used in the treatment planning for BNCT can be estimated by comparing the results of our calculation with the corresponding experimental data.
Kishi, Toshiaki; Ichimura, Shigeju; Kinase, Masami; Wada, Shigeru
JAEA-Conf 2008-010, p.146 - 158, 2008/12
The Department of Research Reactor and Tandem Accelerator operates three research reactors, JRR-3, JRR-4 and NSRR. JRR-3 was operated for 180 days in Japanese Fiscal Year 2007. The neutron bender system was installed on the cold neutron guide tube. As a result, the cold beam intensity has increased by about 10 times. JRR-4 was operated for 93 days in Japanese Fiscal Year 2007. Boron neutron capture therapy was carried out 25 times. The trouble of reflector occurred in December 2007. At present, the reactor has stopped to replace the reflectors. NSRR has been built for the investigation of light water reactor fuel behavior during off-normal conditions such as reactivity-initiated accident. Recently the investigation is performed for the behavior of high burnup fuel and mixed oxide fuel. At present, the NSRR experiments with the new capsule are continuing for high burnup fuels of 59, 67 and 71 GWd/t.
Sasajima, Fumio; Sawahata, Hiroyuki*; Onizawa, Koji*; Ichimura, Shigeju; Otomo, Akitoshi; Ito, Yasuo*; Takayanagi, Masaji
JAERI-Tech 2000-073, 49 Pages, 2000/12
JAERI-Tech-2000-073.pdf:4.43MB
no abstracts in English
Yonezawa, Chushiro; Ichimura, Shigeju; *; Matsue, Hideaki
JAERI-Tech 98-046, 79 Pages, 1998/11
no abstracts in English
Yonezawa, Chushiro; Ichimura, Shigeju; *; Matsue, Hideaki
Bunseki Kagaku, 47(9), p.613 - 620, 1998/00
no abstracts in English
; Torii, Yoshiya; ; Ichimura, Shigeju; *; Sasajima, Fumio; *; *; *; Takahashi, Hidetake
JAERI-M 94-058, 45 Pages, 1994/03
no abstracts in English
Ichimura, Shigeju
no journal, ,
In Kyoto university research reactor institute special workshop in 2006 fiscal year "Workshop concerning the utilization of the overall medical treatment using neutron and particle beam" where a lot of researchers who are related to domestic medical medical treatment irradiation will be gathered to carry out the medical treatment irradiation in JRR-4 in the coming year smoothly, the operation schedule of the reactor and notes of the utilization procedure etc. are explained.
