Abstract
A neutron-beam-shaping assembly consisting of a moderator, a reflector, and an absorber is used to form a therapeutic neutron beam for the boron neutron-capture therapy of malignant tumors at accelerator neutron sources. A new structure of the moderator and reflector is proposed in the present article, and the results of a numerical simulation of the neutron spectrum and of the absorbed dose in a modified Snyder head phantom are presented. The application of a compositemoderator and of a composite reflector and the implementation of neutron production at the proton energy of 2.3MeVare shown to permit obtaining a high-quality therapeutic neutron beam.
Original language | English |
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Pages (from-to) | 60-66 |
Number of pages | 7 |
Journal | Physics of Atomic Nuclei |
Volume | 80 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1 Jan 2017 |