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Yasuda, Ryo; Matsubayashi, Masahito; Nakata, Masahito; Harada, Katsuya; Amano, Hidetoshi; Sasajima, Fumio; Nishi, Masahiro; Horiguchi, Yoji
IEEE Transactions on Nuclear Science, 52(1), p.313 - 316, 2005/02
Times Cited Count：14 Percentile：67.84(Engineering, Electrical & Electronic)Neutron radiography is useful to inspect macroscopic change in nuclear fuels before and after irradiation. We have been investigated the practicality of neutron imaging plate and neutron CT methods for the inspection of the spent fuels. A fresh UO2 fuel rod was examined by those methods. The test results of those samples are available to develop the system of those methods for the spent fuels and to determine the specifications of the system. Some good images of those samples are obtained by those examinations. The shape of the pellets in the fuel rod is clearly recognized in the image. Those images are analyzed to estimate the size of some parts in the fuel pellets.
biological effectiveness of JRR-4 epithermal neutron beam; Experiment under free air beam and in water phantom (Cooperative research)Yamamoto, Tetsuya*; Yamamoto, Kazuyoshi; Matsumura, Akira*; Kumada, Hiroaki; Kishi, Toshiaki; Hori, Naohiko; Torii, Yoshiya; Horiguchi, Yoji; Nose, Tadao*
JAERI-Research 2002-011, 56 Pages, 2002/05
JAERI-Research-2002-011.pdf:3.17MB
The surviving curve and RBE of dose components generated in boron neutron capture therapy (BNCT) were separately determined in neutron beams at JRR-4. Surviving fraction of V79 cell with or without 
B was obtained using an epithermal neutron beam (ENB), a mixed thermal-epithermal neutron beam (TNB-1), and a thermal neutron beam(TNB-2), which were used or planned to use for clinical trial. The cell killing effect of these beams depended highly on the neutron beam used, according to the epithermal and fast neutron content in the beam. RBE of the boron capture were 3.99
0.24, 3.040.19 and 1.430.08, RBE of the high-LET dose components based were 2.500.32, 2.340.30 and 2.170.28 for ENB, TNB-1 and TNB-2, respectively. The experimental determination of biological effectiveness factor outlined in this paper is applicable to the dose calculation for each dose component of the neutron beams and contribute to an accurate RBE as comparison with a neutron beam at a different facility employed in ongoing and planned BNCT clinical trials.
Kumai, Toshio; Liem, P. H.*; Horiguchi, Yoji
JAERI-Tech 2002-023, 49 Pages, 2002/03
no abstracts in English
Yasuda, Ryo; Matsubayashi, Masahito; Nakata, Masahito; Harada, Katsuya; Amano, Hidetoshi; Ando, Hitoshi*; Sasajima, Fumio; Nishi, Masahiro; Horiguchi, Yoji
JAERI-Tech 2002-001, 23 Pages, 2002/02
JAERI-Tech-2002-001.pdf:3.79MB
Advanced neutron radiography techniques such as neutron imaging plate (NIP) and Computed Tomography (CT) methods have been investigated the practicality for Post Irradiation Examination (PIE). In this work, an unirradiated fuel rod was examined by NIP and CT methods in order to collect the fundamental data for applying these techniques to PIE.The fuel rod is composed of seven-enriched UO2 pellet and two-natural UO2 pellet that are loaded into a Zircaloy tube. There are somewhat difference in the size and shape among those UO2 pellets. A transmitted and cross-sectional images were obtained by NIP and CT methods, respectively.In the NIP image, the difference in the size, shape, and enrichment among the UO2 pellets is obviously recognized. In the case of CT method, the images clearly show the detailed shape of the cross section in the pellets, in addition, the difference in the enrichment between the natural and enriched pellets is recognized.
Sakurai, Fumio; Horiguchi, Yoji; Kobayashi, Shinsho; Takayanagi, Masaji
Physica B; Condensed Matter, 311(1-2), p.7 - 13, 2002/01
Times Cited Count：9 Percentile：45.24(Physics, Condensed Matter)no abstracts in English
Torii, Yoshiya; Yamamoto, Kazuyoshi; Hori, Naohiko; Kumada, Hiroaki; Horiguchi, Yoji
JAERI-Conf 2001-017, p.352 - 356, 2001/11
no abstracts in English
Kumada, Hiroaki; Yamamoto, Kazuyoshi; Torii, Yoshiya; Matsumura, Akira*; Yamamoto, Tetsuya*; Nakagawa, Yoshinobu*; Horiguchi, Yoji
JAERI-Conf 2001-017, p.357 - 362, 2001/11
no abstracts in English
Yamamoto, Kazuyoshi; Yamamoto, Tetsuya*; Kumada, Hiroaki; Torii, Yoshiya; Kishi, Toshiaki; Matsumura, Akira*; Nose, Tadao*; Horiguchi, Yoji
JAERI-Tech 2001-017, 38 Pages, 2001/03
no abstracts in English
-ray analysis of JRR-4Yamamoto, Kazuyoshi; Kishi, Toshiaki; Hori, Naohiko; Kumada, Hiroaki; Torii, Yoshiya; Horiguchi, Yoji
JAERI-Tech 2001-016, 34 Pages, 2001/03
JAERI-Tech-2001-016.pdf:1.56MB
no abstracts in English
Yamamoto, Kazuyoshi; Kumada, Hiroaki; Torii, Yoshiya; Kishi, Toshiaki; Horiguchi, Yoji
JAERI-Tech 2001-015, 43 Pages, 2001/03
JAERI-Tech-2001-015.pdf:4.95MB
no abstracts in English
Moriai, Atsushi; Kogawa, Hiroyuki; Yamamoto, Kazuyoshi; Kaminaga, Masanori; Minakawa, Nobuaki; Horiguchi, Yoji
Nihon Zairyo Gakkai Dai-37-Kai X Sen Zairyo Kyodo Ni Kansuru Shimpojiumu Koen Rombunshu, p.35 - 37, 2001/00
no abstracts in English
Torii, Yoshiya; Yamamoto, Kazuyoshi; Kishi, Toshiaki*; Hori, Naohiko; Kumada, Hiroaki; Horiguchi, Yoji
Proceedings of 9th International Symposium on Neutron Capture Therapy for Cancer, p.241 - 242, 2000/10
no abstracts in English
Nakajima, Teruo; Bamba, Masao; ; ; Horiguchi, Yoji; Kaieda, Keisuke
Proc. of 6th Meeting of the Int. Group on Research Reactors, p.51 - 56, 1998/00
no abstracts in English
Torii, Yoshiya; Horiguchi, Yoji; ; ; ; Shigemoto, Masamitsu; Isshiki, Masahiko
UTNL-R-0333, 0, p.9.1 - 9.10, 1996/00
no abstracts in English
