中子俘获
硼
核医学
放射化学
中子
辐射
辐射暴露
内照射剂量
核工程
材料科学
医学
医学物理学
核物理学
物理
化学
工程类
作者
Ryosuke Narita,Yoshinori Sakurai
出处
期刊:Radiation Protection Dosimetry
[Oxford University Press]
日期:2024-03-25
摘要
Abstract Although boron neutron capture therapy (BNCT) causes minor damage to normal cells owing to the nuclear reactions induced by neutrons with major elements of tissues such as hydrogen and nitrogen, it is useful to estimate the accurate exposure dose for radiation protection. This study aims to estimate the contribution of internal exposure in radiation exposure dose for BNCT. The study was performed by referring to clinical studies at a reactor-based BNCT facility on the basis of computational dosimetry. Five irradiation regions of head and neck were selected for the estimation. The results suggest that external exposure occurred primarily in and around the irradiation field. Furthermore, during the exposure dose estimation in BNCT, internal exposure was found to be not negligible, implying that the irradiation regions in treatment planning must be considered for avoiding damage to certain critical organs that are susceptible to internal exposure.
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