Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Akinori Takemoto"'
Autor:
Hiroshi Nakashima, Yoshihiro Asano, Masashi Yamaguchi, Shuji Miyamoto, Yoichi Kirihara, Toshiro Itoga, Toshiya Sanami, Yoshihito Namito, Akinori Takemoto
Publikováno v:
Journal of Nuclear Science and Technology. 57:444-456
The neutron-emission spectrum from a 197Au target excited with a 16.6 ±0.2 MeV, monoenergetic, linearly polarized photon beam was measured using the time-of-flight method at the NewSUBARU-BL01. Two...
Performance measurement of HARPO: A time projection chamber as a gamma-ray telescope and polarimeter
Autor:
Sho Amano, Philippe Gros, A. Delbart, Haruo Ohkuma, Shuji Miyamoto, P. Poilleux, M. Frotin, Y. Geerebaert, Akinori Takemoto, R. Yonamine, Y. Minamiyama, S. Daté, D. Baudin, P. Bruel, M. Louzir, D. Horan, S. Wang, Masashi Yamaguchi, D. Gotz, I. Semeniouk, P. Baron, Frédéric Magniette, P. Sizun, Satoshi Hashimoto, D. Calvet, D. Bernard, David Attié, B. Giebels, Takuya Kotaka, Paul Colas
Publikováno v:
Astropart.Phys.
Astropart.Phys., 2018, 97, pp.10-18. ⟨10.1016/j.astropartphys.2017.10.008⟩
Astropart.Phys., 2018, 97, pp.10-18. 〈10.1016/j.astropartphys.2017.10.008〉
Astropart.Phys., 2018, 97, pp.10-18. ⟨10.1016/j.astropartphys.2017.10.008⟩
Astropart.Phys., 2018, 97, pp.10-18. 〈10.1016/j.astropartphys.2017.10.008〉
We analyse the performance of a gas time projection chamber (TPC) as a high-performance gamma-ray telescope and polarimeter in the e$^+$e$^-$ pair creation regime. We use data collected at a gamma-ray beam of known polarisation. The TPC provides two
Autor:
M. Louzir, P. Sizun, M. Frotin, Ph. Gros, Y. Minamiyama, S. Daté, A. Delbart, D. Calvet, D. Gotz, P. Colas, P. Poilleux, David Attié, I. Semeniouk, B. Giebels, Akinori Takemoto, Shuji Miyamoto, Takuya Kotaka, P. Bruel, Masashi Yamaguchi, D. Bernard, Satoshi Hashimoto, Sho Amano, Y. Geerebaert, Haruo Ohkuma, D. Horan, S. Wang
Publikováno v:
Nucl.Instrum.Meth.A
14th Vienna Conference on Instrumentation
14th Vienna Conference on Instrumentation, Feb 2016, Vienna, Austria. pp.228-232, ⟨10.1016/j.nima.2016.06.031⟩
14th Vienna Conference on Instrumentation, Feb 2016, Vienna, Austria. Nucl.Instrum.Meth.A, 845, pp.228-232, 2017, 〈10.1016/j.nima.2016.06.031〉
14th Vienna Conference on Instrumentation
14th Vienna Conference on Instrumentation, Feb 2016, Vienna, Austria. pp.228-232, ⟨10.1016/j.nima.2016.06.031⟩
14th Vienna Conference on Instrumentation, Feb 2016, Vienna, Austria. Nucl.Instrum.Meth.A, 845, pp.228-232, 2017, 〈10.1016/j.nima.2016.06.031〉
Current {\gamma}-ray telescopes based on photon conversions to electron-positron pairs, such as Fermi, use tungsten converters. They suffer of limited angular resolution at low energies, and their sensitivity drops below 1 GeV. The low multiple scatt
Autor:
G. T. Fan, Toshiyuki Shizuma, Masashi Yamaguchi, S. Miyamoto, Takehito Hayakawa, K. Nakai, M. Nishimura, M. Fujiwara, Noriyuki Takahashi, Akinori Takemoto
Publikováno v:
Physics of Particles and Nuclei. 48:124-133
99m Tc with a 6 hour half-life is one of the most important medical isotopes used for the Single-Photon Emission Computed Tomography (SPECT) inspection in hospitals of US, Canada, Europe and Japan. 99m Tc isotopes are extracted by the milking method
Autor:
P. Baron, Masashi Yamaguchi, P. Poilleux, R. Yonamine, I. Semeniouk, Y. Geerebaert, M. Frotin, Philippe C. Gros, Denis Bernard, Frédéric Magniette, S. Hashimoto, Diego Götz, David Attié, A. Delbart, Y. Minamiyama, B. Giebels, D. Bauduin, S. Miyamoto, S. Wang, M. Louzir, Paul Colas, P. Sizun, T. Kotaka, D. Horan, S. Daté, Haruo Ohkuma, Akinori Takemoto, P. Bruel, D. Calvet, Sho Amano
Publikováno v:
PoS
35th International Cosmic Ray Conference
35th International Cosmic Ray Conference, Jul 2017, Busan, South Korea. pp.818, ⟨10.22323/1.301.0818⟩
Scopus-Elsevier
35th International Cosmic Ray Conference
35th International Cosmic Ray Conference, Jul 2017, Busan, South Korea. pp.818, ⟨10.22323/1.301.0818⟩
Scopus-Elsevier
International audience; Access to the photon polarisation in the 1-100 MeV energy range is a challenge for the next generation of space telescopes. The current telescopes in space are almost blind in this energy range, mainly due to the degradation o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8405a927870543b4dac77793d9997f8a
https://hal.archives-ouvertes.fr/hal-01890896
https://hal.archives-ouvertes.fr/hal-01890896
Autor:
P. Poilleux, M. Frotin, R. Yonamine, Satoshi Hashimoto, Y. Minamiyama, D. Horan, D. Baudin, D. Calvet, I. Semeniouk, H. Ohkuma, P. Baron, S. Miyamoto, A. Delbart, P. Sizun, Masashi Yamaguchi, D. Gotz, P. Bruel, Philippe Gros, M. Louzir, D. Bernard, D. Attié, S. Wang, Paul Colas, B. Giebels, Takuya Kotaka, S. Daté, Akinori Takemoto, Y. Geerebaert, Sho Amano
Publikováno v:
Springer Proc.Phys.
4th International conference on Technology and Instrumentation in Particle Physics
4th International conference on Technology and Instrumentation in Particle Physics, May 2017, Beijing, China. pp.27-30, ⟨10.1007/978-981-13-1313-4_6⟩
Springer Proceedings in Physics ISBN: 9789811313127
4th International conference on Technology and Instrumentation in Particle Physics
4th International conference on Technology and Instrumentation in Particle Physics, May 2017, Beijing, China. pp.27-30, ⟨10.1007/978-981-13-1313-4_6⟩
Springer Proceedings in Physics ISBN: 9789811313127
International audience; We investigate the feasibility of gaseous TPC as a telescope and a polarimeter for cosmic gamma-rays, focussing on the energy range from 1 to 100 MeV. Our beam results show the angular resolution can reach a factor of 2 better
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba4402cd27dc766246ddfca5125e73bf
https://hal.archives-ouvertes.fr/hal-01863380
https://hal.archives-ouvertes.fr/hal-01863380
Autor:
Toshiyuki Shizuma, Hidetoshi Akimune, Shuji Miyamoto, Takehito Hayakawa, Sho Amano, Kazuyuki Ogata, Masashi Yamaguchi, Ken Horikawa, Satoshi Chiba, Mamoru Fujiwara, Akinori Takemoto
Publikováno v:
Proceedings of the 14th International Symposium on Nuclei in the Cosmos (NIC2016).
Autor:
Denis Bernard, S. Miyamoto, M. Louzir, M. Frotin, Sho Amano, Philippe C. Gros, D. Horan, Masashi Yamaguchi, S. Daté, Satoshi Hashimoto, P. Colas, D. Calvet, Y. Minamiyama, Y. Geerebaert, David Attié, P. Bruel, I. Semeniouk, B. Giebels, Takuya Kotaka, Akinori Takemoto, Shaobo Wang, Frédéric Magniette, D. Gotz, A. Delbart, R. Yonamine, P. Baron, D. Baudin, P. Sizun, P. Poilleux, Haruo Ohkuma
Publikováno v:
J.Phys.Conf.Ser.
8th Symposium on Large TPCs for Low-Energy Rare Event Detection
8th Symposium on Large TPCs for Low-Energy Rare Event Detection, Dec 2016, Paris, France. pp.012003, ⟨10.1088/1742-6596/1029/1/012003⟩
8th Symposium on Large TPCs for Low-Energy Rare Event Detection
8th Symposium on Large TPCs for Low-Energy Rare Event Detection, Dec 2016, Paris, France. pp.012003, ⟨10.1088/1742-6596/1029/1/012003⟩
International audience; We presented in 2014 the very first data from a polarised gamma-ray beam between 1.7 and 74MeV. We now show the results of their analysis, and in particular the polarimetry measurements. With these results, we are establishing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9e05b246ba961de8ff212f8e3591c6c
https://hal.archives-ouvertes.fr/hal-01839688
https://hal.archives-ouvertes.fr/hal-01839688
Publikováno v:
IFAC Proceedings Volumes. 46:378-383
This study aims for agricultural production systemized techniques centered on decision support with a computer that provides timely advice along the direction where an operator aims to by transforming the information related to tacit knowledge, growi
Autor:
M. Frotin, P. Colas, D. Calvet, Philippe Gros, Haruo Ohkuma, M. Louzir, D. Bernard, David Attié, B. Giebels, Takuya Kotaka, A. Delbart, P. Sizun, P. Bruel, I. Semeniouk, D. Gotz, P. Poilleux, Sho Amano, S. Wang, D. Horan, Masashi Yamaguchi, Y. Minamiyama, Y. Geerebaert, Satoshi Hashimoto, Akinori Takemoto, Shuji Miyamoto, S. Daté
Publikováno v:
SPIE Astronomical Telescopes + Instrumentation
SPIE Astronomical Telescopes + Instrumentation, Jun 2016, Edinburgh, France. pp.99052R
SPIE Astronomical Telescopes + Instrumentation, Jun 2016, Edinburgh, France. pp.99052R
Current γ-ray telescopes suffer from a gap in sensitivity in the energy range between 100 keV and 100 MeV, and no polarisation measurement has ever been done on cosmic sources above 1 MeV. Past and present e+e- pair telescopes are limited at lower e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7be8f3a503d936a8d57c55c20f29fa85
http://hal.in2p3.fr/in2p3-02003344
http://hal.in2p3.fr/in2p3-02003344