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点通量计数广泛应用于探测区域远小于系统的模型中。对于平行面源，MCNP5计算源粒子的直穿贡献有bug，导致点通量计算结果F5与体通量F4差异较大。此外，MCNP程序（包括MCNP5和MCNP4c）对平行面源的直穿贡献进行多次重复计算，浪费计算资源，通过算法简化，使计算时间大幅度缩短。
对MCNP程序中平行面源直穿贡献算法的改进
【摘 要】
：
点通量计数广泛应用于探测区域远小于系统的模型中。对于平行面源，MCNP5计算源粒子的直穿贡献有bug，导致点通量计算结果F5与体通量F4差异较大。此外，MCNP程序（包括MCNP5和MCN
【机 构】
：
北京应用物理与计算数学研究所,北京,100094
【出 处】
：
第十一届全国蒙特卡罗方法及其应用学术交流会
【发表日期】
：
2012年6期
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