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Cu and 
Cu via the Zn(n, p)Cu and 
Zn(n, np/d)Cu reactions using accelerator neutronsKawabata, Masako*; Motoishi, Shoji*; Ota, Akio*; Motomura, Arata*; Saeki, Hideya*; Tsukada, Kazuaki; Hashimoto, Shintaro; Iwamoto, Nobuyuki; Nagai, Yasuki*; Hashimoto, Kazuyuki*
Journal of Radioanalytical and Nuclear Chemistry, 330(3), p.913 - 922, 2021/12
Times Cited Count：7 Percentile：75.99(Chemistry, Analytical)Both Cu and Cu are promising radionuclides in nuclear medicine. Production yields of these radionuclides were quantified by irradiating 55.4 g of natural zinc with accelerator neutrons. Clinically suitable Cu and Cu yields were estimated by experimental based numerical simulations using 100 g of enriched Zn and Zn, respectively, and elevated neutron fluxes from 40 MeV, 2 mA deuterons. A combined thermal- and resin-separation method was developed to isolate Cu and Cu from zinc, resulting in 73% separation efficiency and 97% zinc recovery. Such methods can provide large scale production of Cu and Cu for clinical applications.
Nagai, Yasuki; Hashimoto, Kazuyuki; Hatsukawa, Yuichi; Saeki, Hideya; Motoishi, Shoji; Sonoda, Nozomi; Kawabata, Masako; Harada, Hideo; Kin, Tadahiro*; Tsukada, Kazuaki; et al.
Journal of the Physical Society of Japan, 82(6), p.064201_1 - 064201_7, 2013/06
Times Cited Count：43 Percentile：85.32(Physics, Multidisciplinary)Ota, Masahisa*; Tatsuda, Sayuki*; Yamamoto, Kazuyuki*; Asano, Tomomasa*; Wada, Takahiro*; Hashizume, Kazuaki*; Sumiyoshi, Kosuke*; Otsuki, Kaori*; Kajino, Toshitaka*; Koura, Hiroyuki; et al.
Nuclear Physics A, 805(2), p.558 - 560, 2008/02
The data base for the fission fragment mass distribution used in the r-process network calculation is constructed. The differences appeared in the final element abundance calculated with and without fission process are demonstrated and the mass region modified by the fission products is presented.
Tatsuda, Sayuki*; Hashizume, Kazuaki*; Wada, Takahiro*; Ota, Masahisa*; Sumiyoshi, Kosuke*; Otsuki, Kaori*; Kajino, Toshitaka*; Koura, Hiroyuki; Chiba, Satoshi; Aritomo, Yoshihiro*
AIP Conference Proceedings 891, p.423 - 426, 2007/03
We investigate the fission-fragment mass distribution on about 2000 nuclides, which should have a critical impact on the r-process nucleosynthesis through fission (
). The mass distribution of fission fragment is thought to be one of the most important elements on some astrophysical conditions for the theoretical estimation of the r-process abundance pattern. We calculated the potential energy surface (PES) by means of the liquid-drop model with the shell energy correction by the Two-Center shell model in 3-dimensional parameter space. We derive fission-fragment mass distribution by considering the location and the depth of the valley of PES near the saddle point and the scission point of nuclei with the use of the Langevin calculation. We determine the fission asymmetry by examining the valley depth and its location in the deformation parameter space. The consistency of our mass asymmetry with available experimental data is discussed.
Fujine, Sachio; Usuda, Shigekazu; Morita, Yasuji; Yoshida, Zenko; ; Furuta, Teruo; Tone, Tatsuzo; *; Nishimura, Kenji*; *
JAERI-M 93-211, 87 Pages, 1993/11
no abstracts in English
Seki, Masami; Ikeda, Yoshitaka; *; Imai, Tsuyoshi; ; Yokokura, Kenji; Sawahata, Masayuki; Suganuma, Kazuaki; Sato, Minoru; *; et al.
Fusion Technology 1990, p.1060 - 1064, 1991/00
no abstracts in English
Nishio, Katsuhisa; Nagayama, Tatsuro*; Nishinaka, Ichiro; Mitsuoka, Shinichi; Makii, Hiroyuki; Ota, Shuya*; Furutaka, Kazuyoshi; Tsukada, Kazuaki; Asai, Masato; Ishii, Tetsuro; et al.
no journal, ,
no abstracts in English
Nishio, Katsuhisa; Hirose, Kentaro; Nishinaka, Ichiro; Makii, Hiroyuki; Ota, Shuya; Nagayama, Tatsuro*; Chiba, Satoshi; Tsukada, Kazuaki; Asai, Masato; Ishii, Tetsuro; et al.
no journal, ,
no abstracts in English
Hirose, Kentaro; Nishio, Katsuhisa; L
guillon, R.; Makii, Hiroyuki; Nishinaka, Ichiro; Orlandi, R.; Smallcombe, J.; Ishii, Tetsuro; Tsukada, Kazuaki; Asai, Masato; et al.
no journal, ,
Cu using thermoseparation for cancer therapyOta, Akio*; Kawabata, Masako*; Motoishi, Shoji*; Saeki, Hideya*; Hashimoto, Kazuyuki*; Tsukada, Kazuaki; Hatsukawa, Yuichi*; Nagai, Yasuki*
no journal, ,
Cu and Cu are recognized to be promising radioisotopes for cancer therapy and diagnosis in nuclear medicine. It is possible to produce both Cu and Cu using accelerator neutrons from the zinc sample with different isotopic enrichment level, therefore the same separation procedure can be applied for both radioisotopes. Three-step-column separation chemistry was previously reported to separate Cu from the irradiated zinc sample. This paper reports that newly developed thermo-separation system to remove the bulk zinc from the sample using a difference in vapor pressure between Zn and Cu.
Tsukada, Kazuaki; Hashimoto, Kazuyuki*; Hashimoto, Shintaro; Asai, Masato; Hatsukawa, Yuichi*; Saeki, Hideya*; Kawabata, Masako*; Ota, Akio*; Motomura, Arata*
no journal, ,
no abstracts in English
