High-Intensity Fission-Converter-Based Epithermal Neutron Beam for Neutron Capture Therapy
Some results from a neutronic design study of a fission-converter-based epithermal beam for neutron capture therapy at the 5 MW MIT Research Reactor are presented. It is shown that a high-intensity beam, with ~1010 epithermal neutrons/cm2-s and low background\(\widetilde < \)2×10−11 cGy-cm2 of fast neutrons or gamma rays can be implemented at the Massachusetts Institute of Technology Research Reactor (MITR-II). This beam is capable of delivering single-fraction treatments in a few minutes. The fission-converter concept appears to be well suited to research reactors with large area thermal neutron sources of \(\widetilde < \)0.5 m2 and \(\widetilde < \)1011 n/cm2-s. There are a relatively large number of potentially suitable reactors worldwide, e.g. in the USA there are more than 15 suitable reactors.
KeywordsFast Neutron Research Reactor Boron Neutron Capture Therapy Epithermal Neutron Neutron Dose
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