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Nagai, Yuki; Shinohara, Yasushi*; Futamura, Yasunori*; Sakurai, Tetsuya*
Journal of the Physical Society of Japan, 86(1), p.014708_1 - 014708_9, 2017/01
Times Cited Count:8 Percentile:54.81(Physics, Multidisciplinary)no abstracts in English
Shimizu, Noritaka*; Utsuno, Yutaka; Futamura, Yasunori*; Sakurai, Tetsuya*; Mizusaki, Takahiro*; Otsuka, Takaharu*
Physics Letters B, 753, p.13 - 17, 2016/02
Times Cited Count:19 Percentile:81.03(Astronomy & Astrophysics)Nuclear level density plays an important role in applications to nuclear energy and nuclear astrophysics, dominating neutron-capture cross sections. In this paper, we propose a new, practical and accurate method of estimating nuclear level density within the framework of the nuclear shell model, and show its feasibility and usefulness. This method is based on the idea that the level density is obtained by the number of eigenstates that is represented as a contour integral in the complex plane. We first confirm the feasibility of this method using a small system in which the exact eigenstates are available, and then calculate parity-dependent level density in Ni, which cannot be calculated with direct eigenstate counting. We succeed in reproducing the experimental result that the
and
level densities are almost identical in low-energy regions, which cannot be obtained with conventional methods of estimating level densities.
Kobayashi, Nobuyuki*; Nakamura, Takashi*; Kondo, Yosuke*; Tostevin, J. A.*; Utsuno, Yutaka; Aoi, Nori*; Baba, Hidetada*; Barthelemy, R.*; Famiano, M. A.*; Fukuda, Naoki*; et al.
Physical Review Letters, 112(24), p.242501_1 - 242501_5, 2014/06
Times Cited Count:83 Percentile:94.26(Physics, Multidisciplinary)no abstracts in English
Nakamura, Takashi*; Kobayashi, Nobuyuki*; Kondo, Yosuke*; Sato, Yoshiteru*; Tostevin, J. A.*; Utsuno, Yutaka; Aoi, Nori*; Baba, Hidetada*; Fukuda, Naoki*; Gibelin, J.*; et al.
Physical Review Letters, 112(14), p.142501_1 - 142501_5, 2014/04
Times Cited Count:59 Percentile:91.02(Physics, Multidisciplinary)no abstracts in English
Nagai, Yuki; Shinohara, Yasushi*; Futamura, Yasunori*; Ota, Yukihiro*; Sakurai, Tetsuya*
Journal of the Physical Society of Japan, 82(9), p.094701_1 - 094701_10, 2013/09
Times Cited Count:17 Percentile:68.73(Physics, Multidisciplinary)no abstracts in English
Yanagie, Hironobu*; Kumada, Hiroaki*; Nakamura, Takemi; Higashi, Shushi*; Ikushima, Ichiro*; Morishita, Yasuyuki*; Shinohara, Atsuko*; Fujiwara, Mitsuteru*; Suzuki, Minoru*; Sakurai, Yoshinori*; et al.
Proceedings of 14th International Congress on Neutron Capture Therapy (ICNCT-14) (CD-ROM), p.157 - 160, 2010/10
Nakamura, Takashi*; Kobayashi, Nobuyuki*; Kondo, Yosuke*; Sato, Yoshiteru*; Aoi, Nori*; Baba, Hidetada*; Deguchi, Shigeki*; Fukuda, Naoki*; Gibelin, J.*; Inabe, Naoto*; et al.
Physical Review Letters, 103(26), p.262501_1 - 262501_4, 2009/12
Times Cited Count:192 Percentile:97.52(Physics, Multidisciplinary)no abstracts in English
Harada, Kosaku*; Nonaka, Tetsuo*; Hamada, Nobuyuki*; Funayama, Tomoo; Sakurai, Hideyuki*; Sakashita, Tetsuya; Wada, Seiichi*; Kawamura, Hidemasa*; Hasegawa, Masatoshi*; Kobayashi, Yasuhiko; et al.
JAEA-Review 2006-042, JAEA Takasaki Annual Report 2005, P. 102, 2007/02
Ishikawa, Masayori*; Ono, Koji*; Matsumura, Akira*; Yamamoto, Tetsuya*; Hiratsuka, Junichi*; Miyatake, Shinichi*; Kato, Itsuro*; Sakurai, Yoshinori*; Kobayashi, Toru*; Kumada, Hiroaki; et al.
Proceedings of 12th International Congress on Neutron Capture Therapy (ICNCT-12), p.397 - 400, 2006/10
An ultraminiature thermal neutron monitor which was named SOF detector (Scintillator with Optical Fiber detector) had been developed for BNCT treatment. We had been experienced 15 clinical trials using SOF detector until the end of 2005, some measurements got good results, and some got unacceptable results. One reason of the unacceptable results was due to dislocation of the detector during treatment. This is because it is difficult to fix the SOF detector on patient's skin without strong sticker. To overcome this problem, a loop-type SOF probe was developed. By using the loop-type SOF detector, fixing on the patient's skin was much easier.
Matsumura, Akira*; Zhang, T.*; Nakai, Kei*; Endo, Kiyoshi*; Kumada, Hiroaki; Yamamoto, Tetsuya*; Yoshida, Fumiyo*; Sakurai, Yoshinori*; Yamamoto, Kazuyoshi; Nose, Tadao*
Journal of Experimental and Clinical Cancer Research, 24(1), p.93 - 98, 2005/03
no abstracts in English
Yamamoto, Tetsuya*; Matsumura, Akira*; Nakai, Kei*; Shibata, Yasushi*; Endo, Kiyoshi*; Sakurai, Fumio; Kishi, Toshiaki; Kumada, Hiroaki; Yamamoto, Kazuyoshi; Torii, Yoshiya
Applied Radiation and Isotopes, 61(5), p.1089 - 1093, 2004/11
Times Cited Count:53 Percentile:94.56(Chemistry, Inorganic & Nuclear)no abstracts in English
Zhang, T.*; Matsumura, Akira*; Yamamoto, Tetsuya*; Yoshida, Fumiyo*; Sakurai, Yoshinori*; Kumada, Hiroaki; Yamamoto, Kazuyoshi; Nose, Tadao*
Research and Development in Neutron Capture Therapy, p.819 - 824, 2002/09
From present study, the irradiation effect by using combination of Boron and Gd, showed various irradiation effects (additive effect, less than additive effect, non additive effect), which depend on Gd concentration. The additive effect will be occurred when using a combination of Gd and Boron with low concentration, however, adding Gd to high concentration will reduce additive effect resulting in less than additive to finally non-additive effect. This result indicate that achieving suitable concentrations of Gd and Boron together in tumors may increase the therapy effect, but achieving excess concentration of Gd with Boron together in tumor may cause negative therapeuitic effect.
Nakagawa, Yoshinobu*; Pooh, K. H.*; Kageji, Teruyoshi*; Uyama, Shinichi*; Kobayashi, Toru*; Sakurai, Yoshinori*; Matsumura, Akira*; Yamamoto, Tetsuya*; Kumada, Hiroaki
Research and Development in Neutron Capture Therapy, p.1113 - 1116, 2002/09
To make a new protocol using epithermal neutron beam for high-grade glioma patients, we elucidated the relationship between the radiation dose, histological tumor grade, and clinical outcome. One hundred and eighty-three patients with kinds of brain tumors were treated by BNCT since 1968, however, we performed a retrospective study of 105 patients with glial tumors treated in Japan between 1978 and 1997. As for the radiation side effect, we analyzed all patients(n=159) treated between 1977 and 2001. Ten patients with glioblastoma were treated according to the new protocol using epithermal neutron.
Yamamoto, Tetsuya*; Matsumura, Akira*; Shibata, Yasushi*; Nose, Tadao*; Yamamoto, Kazuyoshi; Kumada, Hiroaki; Hori, Naohiko; Torii, Yoshiya; Ono, Koji*; Kobayashi, Toru*; et al.
Proceedings of 9th International Symposium on Neutron Capture Therapy for Cancer, p.205 - 206, 2000/10
no abstracts in English
Harada, Kosaku*; Nonaka, Tetsuo*; Sakurai, Hideyuki*; Kawamura, Hidemasa*; Hasegawa, Masatoshi*; Nakano, Takashi*; Hamada, Nobuyuki*; Wada, Seiichi*; Kobayashi, Yasuhiko; Funayama, Tomoo; et al.
no journal, ,
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Harada, Kosaku*; Nonaka, Tetsuo*; Hamada, Nobuyuki*; Funayama, Tomoo; Sakurai, Hideyuki*; Wada, Seiichi*; Sakashita, Tetsuya; Hasegawa, Masatoshi*; Kobayashi, Yasuhiko; Nakano, Takashi*
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Al-Jahdari, W. S.*; Suzuki, Yoshiyuki*; Yoshida, Yukari*; Hamada, Nobuyuki*; Noda, Shinei*; Shirai, Katsuyuki*; Funayama, Tomoo; Sakashita, Tetsuya; Sakurai, Hideyuki*; Kobayashi, Yasuhiko; et al.
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Agui, Akane; Unno, Tetsuya*; Matsumoto, Sayaka*; Suzuki, Kosuke*; Sakurai, Hiroshi*
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Nagai, Yuki; Shinohara, Yasushi*; Futamura, Yasunori*; Ota, Yukihiro; Sakurai, Tetsuya*
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Nagai, Yuki; Shinohara, Yasushi*; Futamura, Yasunori*; Sakurai, Tetsuya*
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Nagai, Yuki; Shinohara, Yasushi*; Yamada, Susumu; Futamura, Yasunori*; Imamura, Toshiyuki*; Sakurai, Tetsuya*
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no abstracts in English