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ZnO using polyethylene by accelerator neutronsTsukada, Kazuaki; Nagai, Yasuki*; Hashimoto, Shintaro; Minato, Futoshi; Kawabata, Masako*; Hatsukawa, Yuichi*; Hashimoto, Kazuyuki*; Watanabe, Satoshi*; Saeki, Hideya*; Motoishi, Shoji*
Journal of the Physical Society of Japan, 89(3), p.034201_1 - 034201_7, 2020/03
Times Cited Count：2 Percentile：21.72(Physics, Multidisciplinary)We found anomalously large yields of 
Ga, 
Ga, 
Zn and 
Cu by neutron irradiation on a ZnO sample in a polyethylene shield. Neutron beams are generated from the 
Be(
) reaction for 50 MeV deuterons. The yields obtained were more than 20 times larger than those in the unshielded sample. On the other hand, the yields of Ga, Ga, Zn and Cu from a metallic Zn sample and the yields of Cu, 
Ni and Zn from the ZnO and Zn samples were almost insensitive to the shield conditions. This finding would provide us a unique capability of accelerator neutrons to simultaneously produce a large amount of several radioisotopes, including proton induced reaction products, by using a single sample. The experimental data were compared with the yields estimated by using the Particle and Heavy Ion Transport code System and the result was discussed.
Mo yield using large sample mass of MoO
for sustainable production of MoTsukada, Kazuaki; Nagai, Yasuki*; Hashimoto, Kazuyuki*; Kawabata, Masako*; Minato, Futoshi; Saeki, Hideya*; Motoishi, Shoji*; Ito, Masatoshi*
Journal of the Physical Society of Japan, 87(4), p.043201_1 - 043201_5, 2018/04
Times Cited Count：10 Percentile：59.94(Physics, Multidisciplinary)Cu suitable for both cancer diagnosis and therapyNagai, Yasuki*; Tsukada, Kazuaki
Isotope News, (753), p.28 - 32, 2017/10
no abstracts in English
Tsukada, Kazuaki; Sato, Nozomi*; Watanabe, Satoshi; Ishioka, Noriko; Hatsukawa, Yuichi; Hashimoto, Kazuyuki; Kin, Tadahiro*; Takeda, Shinsaku*; Kawabata, Masako; Saeki, Hideya; et al.
no journal, ,
A new system has been proposed for the generation of radioisotopes with accelerator neutrons by deuterons, especially the production of Mo-99, Y-90, Cu-67, and Cu-64. Enriched Mo-100, Zr-90, Zn-68 and Zn-64 oxide samples were irradiated with neutrons, which were obtained by the 
C(d,n) and Be(d,n) using 40 MeV deuterons provided from the TIARA cyclotron. Mo-99, Y-90, Cu-67, and Cu-64 were successfully produced via the (n, x) reactions, and we clearly observed the 
-rays. Particularly, yields of impurity radionuclides were much smaller than that of Mo-99 and Cu-67, and therefore radioactive waste produced during chemical processing would be reduced compared with other proposed reaction systems. The present results demonstrate that the radioisotopes, Mo-99, Y-90, Cu-67, and Cu-64, can be produced by using fast neutrons, and strongly suggest that the reaction system is one of the most promising routes to produce high quality medical radioisotope.
Tsukada, Kazuaki; Watanabe, Satoshi*; Ishioka, Noriko*; Hatsukawa, Yuichi*; Hashimoto, Kazuyuki*; Sugo, Yumi*; Sato, Nozomi*; Kin, Tadahiro*; Kawabata, Masako*; Saeki, Hideya*; et al.
no journal, ,
A new system has been proposed for the generation of radioisotopes with accelerator neutrons by deuterons, especially the production of Mo-99, Y-90, Cu-67, and Cu-64. Enriched Mo-100, Zr-90, Zn-68 and Zn-64 oxide samples were irradiated with neutrons, which were obtained by the C(d,n) and Be(d,n) using 12 - 50 MeV deuterons provided from the TIARA cyclotron and the JAEA tandem accelerator. Mo-99, Y-90, Cu-67, and Cu-64 were successfully produced via the (n, x) reactions, and we clearly observed the -rays. The present results demonstrate that the radioisotopes, Mo-99, Y-90, Cu-67, and Cu-64, can be produced by using fast neutrons, and strongly suggest that the reaction system is one of the most promising routes to produce high quality medical radioisotope.
Tsukada, Kazuaki; Hashimoto, Kazuyuki*; Hatsukawa, Yuichi*; Kawabata, Masako*; Saeki, Hideya*; Minato, Futoshi; Iwamoto, Nobuyuki; Nagai, Yasuki*; Sugo, Yumi*; Watanabe, Satoshi*; et al.
no journal, ,
no abstracts in English
Cu for cancer therapy, produced with accelerator neutrons by deuteronsHashimoto, Kazuyuki*; Kawabata, Masako*; Saeki, Hideya*; Sato, Shunichi*; Tsukada, Kazuaki; Sugo, Yumi*; Nagai, Yasuki*; Hatsukawa, Yuichi*; Ishioka, Noriko*
no journal, ,
no abstracts in English
Mo production yield by the acceleration neutronTsukada, Kazuaki; Nagai, Yasuki*; Hashimoto, Kazuyuki*; Kawabata, Masako*; Minato, Futoshi; Saeki, Hideya*; Motoishi, Shoji*; Watanabe, Satoshi*; Ito, Masatoshi*
no journal, ,
no abstracts in English
Tsukada, Kazuaki; Hashimoto, Kazuyuki*; Hashimoto, Shintaro; Asai, Masato; Hatsukawa, Yuichi*; Saeki, Hideya*; Kawabata, Masako*; Ota, Akio*; Motomura, Arata*
no journal, ,
no abstracts in English
