Boyer A L, Mok E C
Med Phys. 1986 Jul-Aug;13(4):503-9. doi: 10.1118/1.595964.
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 to 60Co distributions in the presence of slab and block inhomogeneities are presented.
单能光子输运问题的一种表述形式是以一系列对具有不变核的初级注量分布进行卷积的形式给出的。开发了一种方法,通过一个不变校正核来补偿散射剂量分布中体素间变化的衰减。给出了将该表述应用于存在平板和块状不均匀性情况下的钴 - 60分布的结果。