Altieri, S. and Fatemi, S. and Bortolussi, S. and Magni, C. and Postuma, I. and Protti, N. (2018) Preliminary Monte Carlo study of CZT response to BNCT (n+γ) background. Il nuovo cimento C, 41 (6). pp. 1-8. ISSN 1826-9885
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Abstract
Boron Neutron Capture Therapy (BNCT) effectiveness depends on the therapeutic dose delivered in tumour when targeted by a sufficient amount of 10B atoms and exposed to a proper flux of thermal neutrons. Presently these quantities are measured indirectly. The availability of an in vivo and real time dose monitoring tool would be a tremendous achievement to fully exploit BNCT. To this end, a Single-Photon Emission Computed Tomography (SPECT) can measure the 478keV γ-ray emitted after 94% of 10B capture reactions. Presently, the Italian National Institute of Nuclear Physics (INFN) is supporting the 3CaTS project whose aim is to develop a dedicated BNCT-SPECT based on CdZnTe (CZT) semiconductor detectors. A BNCT-SPECT must operate in a highly intense (n + γ) radiation field. Thus, it is important to study the response of CZT detectors when working in such challenging conditions. In the present work we focused on three main aspects: i) the spectra of the radiation background expected in an accelerator-based BNCT treatment room; ii) the interaction of the thermal neutrons with cadmium present in the crystal; iii) the estimation of the recorded photon counts spectrum when a 478keV photon source is simulated inside a tissue equivalent phantom.
| Item Type: | Article |
|---|---|
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 27 Nov 2020 09:37 |
| Last Modified: | 27 Nov 2020 09:37 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/20345 |
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