Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Gerard Bengua"'
Autor:
Kenichi Tanaka, Tsuyoshi Kajimoto, Aruma Mitsuyasu, Yuto Ito, Shin-ichiro Hayashi, Yoshinori Sakurai, Hiroki Tanaka, Takushi Takata, Gerard Bengua, Satoru Endo
Publikováno v:
Journal of Physics: Conference Series. 2167:012006
The spatial distributions of neutrons and gamma rays in the epithermal mode of the Kyoto University Reactor were measured using a MAGAT-type polymer gel detector doped with LiCl at 6Li concentrations of 0, 10, 100 ppm. Reasonable distributions for th
Autor:
Yoshinori Sakurai, Kenichi Tanaka, Gerard Bengua, Takushi Takata, Tsuyoshi Kajimoto, Ryohei Uchida, Hiroki Tanaka, Satoru Endo, Shin-ichiro Hayashi
Publikováno v:
Applied Radiation and Isotopes. 127:253-259
This study investigated the optimum composition of the MAGAT polymer gel which is to be used in the quality assurance measurement of the thermal neutron, fast neutron and gamma ray components in the irradiation field used for boron neutron capture th
Publikováno v:
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. 164
The
Publikováno v:
Applied Radiation and Isotopes. 164:109227
The 9Be(γ,n) neutrons with the energies at 21–24 keV generated by 1.691 MeV photons from 124Sb was investigated as a source of epithermal neutrons for BNCT, using PHITS code. A beam shaping assembly composed of 13 mm thick Be target, a gamma ray s
Autor:
Gerard Bengua, Osamu Asanuma, Masakazu Hori, Kenichi Tanaka, Kunihiko Tateoka, Takahiro Hayashi, Iori Sumida, Yutaka Takahashi, Ken-ichi Kamo, Tsuyoshi Kajimoto, Satoru Endo, Koh-ichi Sakata
Publikováno v:
Journal of Radiation Research
This study aims to demonstrate the feasibility of a method for estimating the strength of a moving brachytherapy source during implantation in a patient. Experiments were performed under the same conditions as in the actual treatment, except for one
Autor:
Koh-ichi Sakata, Jun Takada, Kaori Sato, Masaru Takagi, Kenichi Tanaka, Masakazu Hori, Ken-ichi Kamo, Hiromitsu Takeda, Gerard Bengua, Osamu Asanuma, Masato Hareyama, Kunihiko Tateoka, Satoru Endo
Publikováno v:
Journal of Radiation Research
This study sought to demonstrate the feasibility of estimating the source strength during implantation in brachytherapy. The requirement for measuring the strengths of the linked sources was investigated. The utilized sources were (125)I with air ker
Autor:
Noriyosu Hayashizaki, Kenichi Tanaka, Noriaki Nakao, Gerard Bengua, Tooru Kobayashi, Kazuaki Kosako, Tatsuya Katabuchi
Publikováno v:
Applied Radiation and Isotopes. 88:221-224
The near threshold (7)Li(p,n)(7)Be neutrons generated by incident proton energy having Gaussian distribution with mean energies from 1.85 to 1.95MeV, were studied as a practical neutron source for BNCT wherein an RFQ accelerator and a thick Li-target
Autor:
Gerard Bengua, Kenichi Tanaka, Tatsuya Katabuchi, Masanori Aritomi, Noriyosu Hayashizaki, Tooru Kobayashi, Minoru Takahashi
Publikováno v:
IFMBE Proceedings ISBN: 9783642293047
A feasibility study of using a liquid lithium target was performed. The candidate configurations for the neutron generation target was adapted for the 7Li(p,n)7Be assuming a proton beam which is 30 mm in diameter and with an energy and current of up
Autor:
Hiroki Shirato, Masayori Ishikawa, Norio Katoh, Rikiya Onimaru, Masakazu Hasegawa, Shinichi Shimizu, Gerard Bengua, Tohru Shiga, Koichi Yasuda, Nagara Tamaki
Publikováno v:
International journal of radiation oncology, biology, physics. 82(4):e671-e676
We compared two treatment planning methods for stereotactic boost for treating nasopharyngeal carcinoma (NPC): the use of conventional whole-body bismuth germanate (BGO) scintillator positron emission tomography (PET(CONV)WB) versus the new brain (BR
Autor:
Gerard Bengua, Masayori Ishikawa, Seishin Takao, Hiroshi Taguchi, Shigeru Tadano, Ryusuke Suzuki, Hiroki Shirato, Rikiya Onimaru, Koichi Yasuda
Publikováno v:
International Journal of Radiation Oncology*Biology*Physics. 81:871-879
Purpose To establish a method for the accurate acquisition and analysis of the variations in tumor volume, location, and three-dimensional (3D) shape of tumors during radiotherapy in the era of image-guided radiotherapy. Methods and Materials Finite