Abstract
Proton-induced reactions on the 9Be target are considered as a neutron source, and dependence of neutron yield on target thicknesses is investigated. The optimal thickness of the 9Be target with the design and optimization characteristics of a beam shaping assembly (BSA) for neutron flux from the thick target is studied with the GEANT4 program. To create the realistic model of the experiment, there are inserted two physics lists for nuclear and electromagnetic reactions. To get a high flux of neutrons had taken into account usage of special materials as moderators on the base of (n, 2n) nuclear reactions, as well as, moderators which will decrease the energy of neutrons to achieve the appropriate thermal/epithermal neutron flux. The creation of the system, which must be made from reflectors and moderators, is a necessity to explore the possibility of an appropriate neutron flux achievement for medical purposes, especially for boron neutron capture therapy (BNCT). GEANT4 simulations of this scientific paper describe the study of IBA’s C18/18 cyclotron-based neutron sources and its possible usage for therapies.
Highlights
IntroductionTaylor, where the capture process has resulted in the nuclear fission of the 11B nuclei into 4He (alpha particles) and 7Li ions
An ability of 10B nuclei to capture thermal neutrons was shown first time by H.J
The main goal of this work is the design of the beam shaping assembly (BSA) using the software package GEANT4, which will be useful for medical purposes, for boron neutron capture therapy (BNCT)
Summary
Taylor, where the capture process has resulted in the nuclear fission of the 11B nuclei into 4He (alpha particles) and 7Li ions Right after this discovery, G.L. Locher suggested that the neutron capture process could be used to treat cancer. Locher suggested that the neutron capture process could be used to treat cancer Later it was called boron neutron capture therapy (BNCT) and became a promising method of treatment of malignant tumors. After the loss of energy during passage through tissue, neutrons are absorbed by the capture agent, which subsequently emits alpha particles. These charged particles can selectively kill tumor cells in which a sufficient amount of 10B is concentrated
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