石墨量热计测量相对论电子能谱的数值模拟

Numerical simulation of relativistic electron energy spectrum measurement based on graphite slices calorimeter

采用数值实验的方法对石墨量热计测量电子能谱的过程进行了模拟,并对解谱方法进行了研究。使用MCNP软件建立了实验模型,根据不同能量入射电子能量沉积分布情况确立了入射电子能量-沉积能量的传递函数,研究确定合适的函数求解方法,并采用添加人为扰动的方式对该函数求解方法的可靠性进行分析,最终得到了有效的解谱方法。

Graphite slices calorimeter is a traditional device for the energy diagnosis of the relativistic electron beams.The measurement of the electron energy spectrum is simulated through a series of numerical experiments,and a spectrum skipping method is investigated.With an MCNP experiment model,transfer functions between the input electron energy and the deposited energy are established for different electron deposited energy distributions.In addition,a method for solving the transfer functions is proposed,and its reliability is investigated by introducing human disturbances.