Calibration and Monte Carlo simulation of a single-photon counting charge-coupled device for single-shot X-ray spectrum measurements  

作　　者：闫永宏 魏来 温贤伦 吴玉迟 赵宗清 张博 朱斌 洪伟 曹磊峰 姚泽恩 谷渝秋 

机构地区：[1]Science and Technology on Plasma Physics Laboratory,Research Center of Laser Fusion,China Academy of Engineering Physics [2]School of Nuclear Science and Technology,Lanzhou University

出　　处：《Chinese Optics Letters》2013年第11期9-12,共4页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.10975121,10905051,10902051,and 11174259);the Foundation of CAEP(Nos.2009A0102003 and 2011B0102021);the Foundation of Science and Technology on Plasma Physics Laboratory(No.9140C6802041004)

摘　　要：A Princeton Instruments PI-LCX 1300 charge-coupled device （CCD） camera used for X-ray spectrum measurements in laser-plasma experiments is calibrated using three radioactive sources and investigated with the Monte Carlo code Geant4. The exposure level is controlled to make the CCD work in single photon counting mode. A summation algorithm for obtaining accurate X-ray spectra is developed to reconstruct the X-ray spectra, and the results show that the developed algorithm effectively reduces the low-energy tail caused by split pixel events. The obtained CCD energy response shows good linearity. The detection efficiency curves from both Monte Carlo simulations and the manufacturer agree well with the experimental results. This consistency demonstrates that event losses in charge collection processes are negligible when the developed summation algorithm of sDlit Dixel events is emDloved.A Princeton Instruments PI-LCX 1300 charge-coupled device （CCD） camera used for X-ray spectrum measurements in laser-plasma experiments is calibrated using three radioactive sources and investigated with the Monte Carlo code Geant4. The exposure level is controlled to make the CCD work in single photon counting mode. A summation algorithm for obtaining accurate X-ray spectra is developed to reconstruct the X-ray spectra, and the results show that the developed algorithm effectively reduces the low-energy tail caused by split pixel events. The obtained CCD energy response shows good linearity. The detection efficiency curves from both Monte Carlo simulations and the manufacturer agree well with the experimental results. This consistency demonstrates that event losses in charge collection processes are negligible when the developed summation algorithm of sDlit Dixel events is emDloved.

关 键 词：ALGORITHMS Charge coupled devices PIXELS X ray analysis X ray spectrographs X rays 

分 类 号：TN622[电子电信—电路与系统] O434.13[机械工程—光学工程]