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2014 Article BSA designs Dosimetry Physics

Optimum design of a moderator system based on dose calculation for an accelerator driven Boron Neutron Capture Therapy

Applied Radiation and Isotopes, 2014

Authors:   Inoue R., Hiraga F., Kiyanagi Y.
Journal: Applied Radiation and Isotopes
https://doi.org/10.1016/j.apradiso.2013.12.017
Abstract: An accelerator based BNCT has been desired because of its therapeutic convenience. However, optimal design of a neutron moderator system is still one of the issues. Therefore, detailed studies on materials consisting of the moderator system are necessary to obtain the optimal condition. In this study, the epithermal neutron flux and the RBE dose have been calculated as the indicators to look for optimal materials for the filter and the moderator. As a result, it was found that a combination of MgF2 moderator with Fe filter gave best performance, and the moderator system gave a dose ratio greater than 3 and an epithermal neutron flux over 1.0×109 cm?2 s?1.

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