Application of wavelet transform in-ray spectra analysis  

作　　者：YU GuoLiang GU JianZhong HOU Long LI ZhenYu WANG YanZhao ZHANG YiYun 

机构地区：[1]Department of Mathematics and Physics,North China Electric Power University [2]Department of Nuclear Physics,China Institute of Atomic Energy [3]School of Physics and Electronic Sciences,Guizhou Normal College [4]Department of Mathematics and Physics,Shijiazhuang Tiedao University [5]College of Physical Science and Technology,Si Chuan University

出　　处：《Science China(Physics,Mechanics & Astronomy)》2013年第9期1735-1739,共5页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the Fundamental Research Funds for the Central Universities (Grant No.13QN50);the National Natural Science Foundation of China (Grant No.11275271)

摘　　要：The frequency distribution of different ingredients in-ray spectra,e.g.,photo-peak,fluctuations of counts and Compton region,is separately analyzed.After wavelet transform of-ray spectra,the wavelet coefficients of a photo-peak increase with transforming scales and these coefficients show direct proportion with intensity of peak at determinate scale.A novel algorithm based on wavelet transform is proposed and studied.The results indicate that most of the photo-peaks in multi-spectra can be determined accurately,the-rays energy and intensity of the peak can also be determined.This method has the prospect of being applied in on-line multi-spectra analysis in such fields as radioprotection and nuclear safety monitoring.The frequency distribution of different ingredients in-ray spectra,e.g.,photo-peak,fluctuations of counts and Compton region,is separately analyzed.After wavelet transform of-ray spectra,the wavelet coefficients of a photo-peak increase with transforming scales and these coefficients show direct proportion with intensity of peak at determinate scale.A novel algorithm based on wavelet transform is proposed and studied.The results indicate that most of the photo-peaks in multi-spectra can be determined accurately,the-rays energy and intensity of the peak can also be determined.This method has the prospect of being applied in on-line multi-spectra analysis in such fields as radioprotection and nuclear safety monitoring.

关 键 词：wavelet transform -ray spectra photo-peak 

分 类 号：TL751[核科学技术—辐射防护及环境保护]