反射边界条件下的指向概率方法研究

Research of Next Event Estimation for Reflecting Surfaces

本文针对反射边界条件,改进了指向概率法,使其能有效计算带反射边界条件的问题。基于改进的指向概率法,在蒙特卡洛输运程序NPTS上开发了点注量率与针孔成像计算功能,并通过典型含反射边界条件的模型验证了新方法与NPTS新增计算功能的正确性。

This paper presents a modified next event estimation method, which could be used with reflecting surfaces. The point flux and the flux image by pinhole calculated by the Monte Carlo transport code NPTS are based on this new method. Several numerical cases with reflecting surfaces are chosen to verify the new method and the new functions of NPTS in this paper.