Mackie T R, Scrimger J W, Battista J J
Med Phys. 1985 Mar-Apr;12(2):188-96. doi: 10.1118/1.595774.
Arrays were generated using the Monte Carlo method representing the energy absorbed throughout waterlike phantoms from charged particles and scatter radiation set in motion by primary interactions at one location. The resulting "dose spread arrays" were normalized to the collision fraction of the kinetic energy released by the primary photons. These arrays are convolved with the relative primary fluence interacting in a phantom to obtain three-dimensional dose distributions. The method gives good agreement for the 15-MV x-ray dose in electronic disequilibrium situations, such as the buildup region, near beam boundaries, and near low-density heterogeneities.
使用蒙特卡罗方法生成阵列，该阵列表示在一个位置处由初级相互作用引发的带电粒子和散射辐射在类水模体中吸收的能量。所得的“剂量分布阵列”根据初级光子释放的动能碰撞分数进行归一化。这些阵列与在模体中相互作用的相对初级注量进行卷积，以获得三维剂量分布。该方法对于电子非平衡情况下（如积累区、射束边界附近以及低密度不均匀性附近）的15兆伏X射线剂量给出了很好的一致性。
