In the gamma knife treatment planning system, the calculation of radiation dose distributions must be done precisely and rapidly.
在伽玛刀治疗计划系统中,必须准确快速地计算辐射吸收剂量,制定出治疗计划。
2
By using conditional moments, the author characterized the Gamma, Negative Binomial, Generalized Mixed Exponential and Geometric distributions respectively.
利用条件矩的性质特征刻画伽玛分布,负二项分布,广义混合指数分布,广义混合几何分布。
3
We use EGS4 code to simulate the electron-gamma shower of high-energy electrons in a medium, optimize target thickness, and analyze positron distributions in phase space.