Neutron-beam-shaping assembly for boron neutron-capture therapy
| Autor: | G. N. Malyshkin, Tatiana Sycheva, S. A. Frolov, S. I. Lezhnin, E. A. Kashaeva, S. I. Samarin, L. Zaidi, S. Yu. Taskaev |
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| Rok vydání: | 2017 |
| Předmět: |
Physics
Nuclear and High Energy Physics business.industry Astrophysics::High Energy Astrophysical Phenomena Quantitative Biology::Tissues and Organs Nuclear Theory Physics::Medical Physics chemistry.chemical_element Reflector (antenna) Neutron radiation Atomic and Molecular Physics and Optics Imaging phantom 030218 nuclear medicine & medical imaging 03 medical and health sciences Neutron capture 0302 clinical medicine Optics chemistry 030220 oncology & carcinogenesis Absorbed dose Neutron source Neutron Nuclear Experiment business Boron |
| Zdroj: | Physics of Atomic Nuclei. 80:60-66 |
| ISSN: | 1562-692X 1063-7788 |
| DOI: | 10.1134/s106377881701015x |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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