Details

Autor(en) / Beteiligte

• NAKAMURA, Satoshi
• IMAMICHI, Shoji
• MASUMOTO, Kazuyoshi
• ITO, Masashi
• WAKITA, Akihisa
• OKAMOTO, Hiroyuki
• NISHIOKA, Shie
• IIJIMA, Kotaro
• KOBAYASHI, Kazuma
• ABE, Yoshihisa
• IGAKI, Hiroshi
• KURITA, Kazuyoshi
• NISHIO, Teiji
• MASUTANI, Mitsuko
• ITAMI, Jun

Titel

Evaluation of radioactivity in the bodies of mice induced by neutron exposure from an epi-thermal neutron source of an accelerator-based boron neutron capture therapy system

Ist Teil von

• Proceedings of the Japan Academy, Series B, 2017/12/11, Vol.93(10), pp.821-831

Ort / Verlag

Japan: The Japan Academy

Erscheinungsjahr

2017

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• This study aimed to evaluate the residual radioactivity in mice induced by neutron irradiation with an accelerator-based boron neutron capture therapy (BNCT) system using a solid Li target. The radionuclides and their activities were evaluated using a high-purity germanium (HP-Ge) detector. The saturated radioactivity of the irradiated mouse was estimated to assess the radiation protection needs for using the accelerator-based BNCT system. 24Na, 38Cl, 80mBr, 82Br, 56Mn, and 42K were identified, and their saturated radioactivities were (1.4 ± 0.1) × 102, (2.2 ± 0.1) × 101, (3.4 ± 0.4) × 102, 2.8 ± 0.1, 8.0 ± 0.1, and (3.8 ± 0.1) × 101 Bq/g/mA, respectively. The 24Na activation rate at a given neutron fluence was found to be consistent with the value reported from nuclear-reactor-based BNCT experiments. The induced activity of each nuclide can be estimated by entering the saturated activity of each nuclide, sample mass, irradiation time, and proton current into the derived activation equation in our accelerator-based BNCT system.