| 应用Geant4模拟放疗、诊断和防护线质下的X射线能谱 |
| |
| 引用本文： | 李明生,欧向明,赵士安,程金生.应用Geant4模拟放疗、诊断和防护线质下的X射线能谱[J].中国辐射卫生,2012,21(1):3-5. |
| |
| 作者姓名： | 李明生 欧向明 赵士安 程金生 |
| |
| 作者单位： | 中国疾病预防控制中心辐射防护与核安全医学所,北京,100088 |
| |
| 基金项目： | 卫生行业科研专项:中国CDC辐射防护与核安全医学所所长基金(901118) |
| |
| 摘 要： | 目的获得放疗、诊断和防护线质下的X射线能谱。方法应用Geant4对于不同的过滤片和管电压组合进行了蒙特卡洛模拟，得到了相应条件下的X射线能谱。模拟时考虑了电子与靶碰撞发生的康普顿效应、光电效应、瑞利散射、轫致辐射和电离等物理过程。结果得到了放疗、诊断和防护线质下的X射线能谱与平均能量值。结论应用Geant4可以准确模拟放疗、诊断和防护线质下的X射线能谱。
|
| 关 键 词： | 蒙卡程序Geant4 X射线能谱 放疗线质 诊断线质 防护线质 |
Simulating the X - Ray Spectrum Under Radiotherapy, Diagnosis and Protection Fields with Geant4 |
| |
| LI Ming-sheng
,
OU Xiang-ming
,
ZHAO Shi-an
,
CHENG Jin-sheng.Simulating the X - Ray Spectrum Under Radiotherapy, Diagnosis and Protection Fields with Geant4[J].Chinese Journal of Radiological Health,2012,21(1):3-5. |
| |
| Authors: | LI Ming-sheng OU Xiang-ming ZHAO Shi-an CHENG Jin-sheng |
| |
| Institution: | . National Institute for Radiological Protection,Chinese Center for Disease Control and Prevention,Beijing 100088 China. |
| |
| Abstract: | ObjectiveTo get the X-ray spectrum under radiotherapy,diagnosis and protection fields.MethodsThe simulations were performed using different combinations of filters and tube Voltages with Geant4.All the relevant physical processes were included in the calculations: Compton scattering,photoelectric effect,Rayleigh scattering,bremsstrahlung and ionization.ResultsThe X-ray spectrum and mean values of the spectrum under radiotherapy,diagnosis and protection fields.ConclusionThe X-ray spectrum under radiation,diagnostic and protection fields can be acuately simulted with Geant4. |
| |
| Keywords: | Geant4 X-ray Spectrum Radiotherapy Field Diagnosis Field Protection Field |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
