A protective subsurface container for holding and temporary storage of activated targets

Springer Science and Business Media LLC - Tập 53 - Trang 883-885 - 2010
B. F. Bayanov1, Ya. Z. Kandiev2, E. A. Kashaeva2, G. N. Malyshkin2, S. Yu. Taskaev1, V. Ya. Chudaev1
1Budker Institute of Nuclear Physics, Siberian Division, Russian Academy of Sciences, Novosibirsk, Russia
2Zababakhin All-Russia Research Institute of Technical Physics, Russian Federal Nuclear Center, Snezhinsk, Chelyabinsk oblast, Russia

Tóm tắt

An accelerator-driven source of epithermal neutrons has been developed by the Budker Institute of Nuclear Physics for carrying out investigations into neutron capture therapy of malignant tumors. Safe handling of targets with 7Be radionuclide accumulated in them is one of the problems encountered in generation of neutrons in the 7Li(p, n)7Be reaction. It is proposed that targets will be decontaminated in a natural course, being placed in a subsurface container located in the room of the accelerating facility. The maximum activity of the targets enclosed in the container after scheduled generation of neutrons at the facility is estimated. Analytical estimates and Monte Carlo calculation of γ-ray transport are performed to determine the optimum container size, such that the γ-ray flux from its contents is reduced to the acceptable level. The preliminary design of the container and its embodiment are presented.

Tài liệu tham khảo

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