Approximate calculation of neutron escape probabilities for cylindrical shell 圆柱壳中子泄漏几率的近似计算
So it is of great significance to diagnose ρ R. There are many methods to diagnose ρ R. But now the diagnostics are mostly based on the neutron information because neutrons can escape from the largest and densest target core. 诊断ρR的方法很多,由于中子可以从目前即使是最大、最密的靶芯中逃出,所以测量面密度主要是基于中子信息。