Thin-film approximate point scattered function and its application to neutron radiography  

作　　者：Jun Qin Jia-Yu Ni Lin-Feng Ye De-Hong Gao Wei-Jun Jiang 

机构地区：[1]Department of Nuclear Engineering and New Energy Technology,The College of Engineering and Technology of Chengdu University of Technology,Leshan 614000,Sichuan,China [2]Society for Theoretical and Computational Physics,The College of Engineering and Technology of Chengdu University of Technology,Leshan 614000,Sichuan,China

出　　处：《Nuclear Science and Techniques》2022年第9期1-9,共9页核技术（英文）

基　　金：the College Foundation Project,the College of Engineering and Technology of Chengdu University of Technology(No.C122018029)。

摘　　要：A simpler and improved utility approximate point scattered function for thin-film converters currently used in neutron photographic devices is proposed as a correction method to produce clearer,more realistic images.The validity of the model was demonstrated through a simulation experiment.Based on the results,an error analysis was carried out,certain corrections were made to the original model,and the final model achieved a very low relative error in the simulation experiment.The model can also be optimized for quantitative neutron photographic analysis using iterative algorithms to obtain realistic neutron photographic images more quickly.At the end of the article,the model is extended to consider the case of energy spectrum hardening by introducing a temperature correction parameter.

关 键 词：Neutron radiography Point scattered function Image processing 

分 类 号：O571.5[理学—粒子物理与原子核物理] TP391.41[理学—物理]