Dedicated calculation method using GP-GPU to dose distribution in particle therapy.

研究了一种计算粒子治疗中三维剂量分布的新算法，并利用图形处理单元上的通用计算对计算速度进行了研究。该模型的计算过程非常简单，几乎涵盖了质子能量沉积的所有基本过程。通过包含这些过程，新方法的精度看起来与蒙特卡罗方法相似。研究了不同存储容量下并行处理的效率。

A new algorithm to calculate 3 dimensional dose distribution in particle therapy is investigated, and the calculating speed is studied by using the general-purpose computing on graphics processing units. The model, with a very simple calculation procedure, includes almost all of the fundamental processes of proton energy deposition. By the inclusion of the processes, the accuracy of the new method looks similar to that of Monte Carlo method. The efficiency of the parallel processing was studied for different sizes of memory for the calculation.