Calculation of photon dose distributions in an inhomogeneous medium using convolutions.
Calculation of photon dose distributions in an inhomogeneous medium using convolutions.
复制标题
使用卷积计算非均匀介质中的光子剂量分布。
作者：
Boyer,AL;Mok,EC
单能光子输运问题的一个公式是以一系列卷积的形式在具有不变核的主注量分布上进行的。提出了一种利用不变校正核补偿散射剂量分布中的体素间衰减的方法。结果应用配方to60钴分布在存在板和块的不均匀性。
A formulation of the single energy photon transport problem is cast in the form of a series of convolutions over the primary fluence distribution with invariant kernels. A method is developed for compensating for the variant intervoxel attenuation in the scattered dose distribution by means of an invariant correction kernel. Results of applying the formulation to60Co distributions in the presence of slab and block inhomogeneities are presented.