Monte Carlo simulation for bremsstrahlung and photoneutron yields in high-energy x-ray radiography  

作　　者：许海波 彭现科 陈朝斌 

机构地区：[1]Institute of Applied Physics and Computational Mathematics

出　　处：《Chinese Physics B》2010年第6期213-220,共8页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No.10576006);the Foundation of China Academy of Engineering Physics (Grant Nos.2007A01001 and 2009B0202020)

摘　　要：This paper reports on the results of calculations using a Monte Carlo code （MCNP5） to study the properties of photons, electrons and photoneutrons obtained in the converted target and their transportations in x-ray radiography. A comparison between measurements and calculations for bremsstrahlung and photoneutrons is presented. The radiographic rule and the effect of the collimator on the image are studied with the experimental model. The results provide exact parameters for the optimal design of radiographic layout and shielding systems.This paper reports on the results of calculations using a Monte Carlo code （MCNP5） to study the properties of photons, electrons and photoneutrons obtained in the converted target and their transportations in x-ray radiography. A comparison between measurements and calculations for bremsstrahlung and photoneutrons is presented. The radiographic rule and the effect of the collimator on the image are studied with the experimental model. The results provide exact parameters for the optimal design of radiographic layout and shielding systems.

关 键 词：x-ray radiography BREMSSTRAHLUNG PHOTONEUTRON energy spectrum angular distribution 

分 类 号：O434.1[机械工程—光学工程]