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Okumura, Takuma*; Azuma, Toshiyuki*; Bennet, D. A.*; Caradonna, P.*; Chiu, I.-H.*; Doriese, W. B.*; Durkin, M. S.*; Fowler, J. W.*; Gard, J. D.*; Hashimoto, Tadashi; et al.
IEEE Transactions on Applied Superconductivity, 31(5), p.2101704_1 - 2101704_4, 2021/08
Times Cited Count：1 Percentile：10.62(Engineering, Electrical & Electronic)A superconducting transition-edge sensor (TES) microcalorimeter is an ideal X-ray detector for experiments at accelerator facilities because of good energy resolution and high efficiency. To study the performance of the TES detector with a high-intensity pulsed charged-particle beam, we measured X-ray spectra with a pulsed muon beam at the Japan Proton Accelerator Research Complex (J-PARC) in Japan. We found substantial temporal shifts of the X-ray energy correlated with the arrival time of the pulsed muon beam, which was reasonably explained by pulse pileup due to the incidence of energetic particles from the initial pulsed beam.
X raysOkumura, Takuma*; Azuma, Toshiyuki*; Bennet, D. A.*; Caradonna, P.*; Chiu, I. H.*; Doriese, W. B.*; Durkin, M. S.*; Fowler, J. W.*; Gard, J. D.*; Hashimoto, Tadashi; et al.
Physical Review Letters, 127(5), p.053001_1 - 053001_7, 2021/07
Times Cited Count：15 Percentile：80.44(Physics, Multidisciplinary)We observed electronic X rays emitted from muonic iron atoms using a superconducting transition-edge-type sensor microcalorimeter. The energy resolution of 5.2 eV in FWHM allowed us to observe the asymmetric broad profile of the electronic characteristic 
and 
X rays together with the hypersatellite X rays around 6 keV. This signature reflects the time-dependent screening of the nuclear charge by the negative muon and the 
-shell electrons, accompanied by electron side-feeding. Assisted by a simulation, this data clearly reveals the electronic - and -shell hole production and their temporal evolution during the muon cascade process.
F from 
O
?Tang, T. L.*; Uesaka, Tomohiro*; Kawase, Shoichiro; Beaumel, D.*; Dozono, Masanori*; Fujii, Toshihiko*; Fukuda, Naoki*; Fukunaga, Taku*; Galindo-Uribarri, A.*; Hwang, S. H.*; et al.
Physical Review Letters, 124(21), p.212502_1 - 212502_6, 2020/05
Times Cited Count：14 Percentile：73.46(Physics, Multidisciplinary)The structure of a neutron-rich F nucleus is investigated by a quasifree (
) knockout reaction. The sum of spectroscopic factors of 
orbital is found to be 1.0 
0.3. The result shows that the O core of F nucleus significantly differs from a free O nucleus, and the core consists of 
35% O
, and 65% excited O. The result shows that the O core of F nucleus significantly differs from a free O nucleus. The result may infer that the addition of the 
proton considerably changes the neutron structure in F from that in O, which could be a possible mechanism responsible for the oxygen dripline anomaly.
Kawachi, Naoki; Watanabe, Shigeki; Sato, Takahiro; Arakawa, Kazuo; Takeda, Shinichiro*; Ishikawa, Shinnosuke*; Aono, Hiroyuki*; Watanabe, Shin*; Yamaguchi, Mitsutaka*; Takahashi, Tadayuki*; et al.
2008 IEEE Nuclear Science Symposium Conference Record (CD-ROM), p.1540 - 1543, 2008/10
Takeda, M.*; Okawa, Yoshinao; Akutsu, Yoichi; Suzuki, Hideyuki; *; *
Nihon Kenchiku Gakkai Taikai Gakujutsu Koen Kogaishu, 0, p.45 - 46, 1994/09
no abstracts in English
Takeda, Hideyuki; Usami, Masayuki; Hirosawa, Naonori; Fujita, Yoshihisa; Kodani, Yoshiki; Komata, Kazuhiro*
no journal, ,
no abstracts in English
Takeda, Hideyuki
no journal, ,
no abstracts in English
Kawachi, Naoki; Watanabe, Shigeki; Sato, Takahiro; Matsuhashi, Shimpei; Arakawa, Kazuo; Takeda, Shinichiro*; Ishikawa, Shinnosuke*; Aono, Hirofumi*; Watanabe, Shin*; Takahashi, Tadayuki*; et al.
no journal, ,
no abstracts in English
Kawachi, Naoki; Watanabe, Shigeki; Fujimaki, Shu; Ishioka, Noriko; Sato, Takahiro; Kamiya, Tomihiro; Arakawa, Kazuo; Watanabe, Shin*; Takeda, Shinichiro*; Ishikawa, Shinnosuke*; et al.
no journal, ,
Yamaguchi, Mitsutaka*; Arakawa, Kazuo; Aono, Hiroyuki*; Ishikawa, Shinnosuke*; Kamiya, Tomihiro; Kawachi, Naoki; Odaka, Hirokazu*; Sakurai, Hideyuki*; Sato, Takahiro; Shimada, Hirofumi*; et al.
no journal, ,
Yoshida, Yukari*; Shimada, Hirofumi*; Kawachi, Naoki; Takeda, Shinichiro*; Ishikawa, Shinnosuke*; Aono, Hiroyuki*; Suzuki, Yoshiyuki*; Sakurai, Hideyuki*; Watanabe, Shin*; Yamaguchi, Mitsutaka*; et al.
no journal, ,
Suzuki, Yoshiyuki*; Yoshida, Yukari*; Shimada, Hirofumi*; Kato, Hiroyuki*; Sakurai, Hideyuki*; Kawachi, Naoki; Takeda, Shinichiro*; Ishikawa, Shinnosuke*; Aono, Hiroyuki*; Watanabe, Shin*; et al.
no journal, ,
no abstracts in English
Yamaguchi, Mitsutaka; Kawachi, Naoki; Watanabe, Shigeki; Sato, Takahiro; Arakawa, Kazuo; Kojima, Takuji; Kamiya, Tomihiro; Watanabe, Shin*; Takeda, Shinichiro*; Odaka, Hirokazu*; et al.
no journal, ,
no abstracts in English
Kawachi, Naoki; Yamaguchi, Mitsutaka; Sato, Takahiro; Kamiya, Tomihiro; Arakawa, Kazuo*; Watanabe, Shigeki; Ishioka, Noriko; Takeda, Shinichiro*; Ishikawa, Shinnosuke*; Aono, Hiroyuki*; et al.
no journal, ,
no abstracts in English
Nakamura, Hironobu; Takeda, Seiichi; Shimizu, Yasuyuki; Takeda, Hideyuki; Aoki, Rie; Shirafuji, Masaya; Kitao, Takahiko; Miyaji, Noriko
no journal, ,
In the consultancy meeting "Safeguards Guidelines for post-accident facilities and associated waste management facilities" held in IAEA, decommissioning activities, and the relevant safeguards activities in TRP/PCDF are reported. In general, the facility after accident with access limitation, operator decides to conduct decommissioning. Therefore, our report regarding the decommissioning plan and the relevant safeguards activities are very helpful to be considered. The nuclear material remove and waste management (storage/treatment) are essential work in the normal accessible facility as well as post-accident facility. Otherwise, in the case of post accident facility, alternative safeguards measures is required according to the access situation because normal safeguards activities might not be taken appropriately. In this report, we would present that outline of decommissioning plan in the TRP/PCDF and the relevant safeguards and nuclear material accountancy.
