摘要
简述了一个模拟质子、α粒子的蒙特卡罗径迹结构模型 ,考虑了质子、α粒子在水中输运时的电离、激发等非弹性散射机制 ,模拟计算了质子、α粒子在水蒸气 (密度为 1g cm3 )中的径迹 ,质子、α粒子的能量范围为 0 3— 5MeV u .考虑了产生的大量低能电子 (能量下限为 1eV)在水介质中的输运 .计算得到的射程、径向剂量等参数 ,与实验数据符合得较好 .
Taking into account of inelastic scattering process, such as ionization, excitation et al., a Monte Carlo track structure model of the proton and α particle in water has been described. In the simulation, the energy range of proton and α particle is about 0.3—5MeV/u. The cutoff energy of secondary energy electron is taken as 1eV. Tracks were analyzed to provide confirmation on the reliability of the code and the information on physical parameters, such as range, radial dose profiles. Our Model calculation shows the good agreement with the experimental data.
出处
《高能物理与核物理》
CSCD
北大核心
2004年第4期377-381,共5页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金 ( 10 175 0 95 )资助~~
