软X射线激发稳态瞬态发光探测系统研制  

The development of soft X-ray excited steady-state and transient luminescence detection system

作　　者：于怀娜[1,2,3] 邹鹰 张招红 孟祥雨 王勇 邰仁忠[1,3] YU Huaina;ZOU Ying;ZHANG Zhaohong;MENG Xiangyu;WANG Yong;TAI Renzhong(Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China;University of Chinese Academy of Sciences,Beijing 100049,China;Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201204,China)

机构地区：[1]中国科学院上海应用物理研究所,上海201800 [2]中国科学院大学,北京100049 [3]中国科学院上海高等研究院,上海201204

出　　处：《核技术》2019年第12期13-19,共7页Nuclear Techniques

基　　金：国家自然科学基金(No.U1832110、No.11705272、No.11875314、No.U1632268);国家(973)项目(No.2010CB934501)资助~~

摘　　要：在上海同步辐射光源软X射线显微谱学光束线站BL08U1A搭建了软X射线激发稳态瞬态发光探测系统,可探测紫外到近红外波段的光子(200~900 nm),实现了常规软X射线激发发光光谱(X-ray Excited Optical Luminescence,XEOL)和时间分辨XEOL(Time-resolved XEOL,TRXEOL)光谱探测。通过将光谱仪数据采集程序与该实验站原有的数据采集软件集成,实现了不同X射线能量激发下XEOL和全电子产额谱(Total Electron Yield,TEY)的同时检测。基于该探测平台,获得了CsPbI3亚微米线样品在Cs元素M4,5边的二维XANES-XEOL谱图,并研究了光子晶体对闪烁体光输出的影响。基于TRXEOL探测平台,成功获得了ZnO样品在不同时间窗下的XEOL谱和发光衰减曲线。实验结果表明:BL08U1A实验站具备XEOL和TRXEOL探测能力,为研究材料的发光机制和发光动力学过程提供了很好的技术手段。[Background]X-ray excited optical luminescence(XEOL)is an X-ray photon-in,optical photon-out technique that detects ultraviolet to near infrared(200~900 nm)photons emitted by the sample under soft X-ray excitation.Combining with synchrotron radiation,XEOL can be used to identify the origin of the luminescence and study luminescence dynamics.[Purpose]This study aims to build a soft X-ray excited steady-state and transient luminescence detection system at the soft X-ray beamline BL08U1A of Shanghai Synchrotron Radiation Facility(SSRF).[Methods]A data acquisition system was developed independently to realize the simultaneous detection of XEOL and total electron yield(TEY)spectra under different soft X-ray photon energies.A spectrometer,and a set of subsystems,including timing,nuclear electronics and motion control were integrated to realize time-resolved XEOL(TRXEOL)detection.Finally,experimental tests were performed to verify performance of this detection system.[Results]The XEOL and TEY signals at the Cs M4,5 absorption edges of CsPbI3 submicron wires were detected,and the effect of photonic crystals on the output of scintillators was studied.The time-resolved XEOL spectra and decay curves of zinc oxide were obtained by TRXEOL detection system.[Conclusions]The results verified the feasibility of XEOL/TRXEOL detection system at the soft X-ray experimental station BL08U1A which provides a good technical means for studying the luminescent mechanism and luminescent dynamics of materials at SSRF.

关 键 词：XEOL 时间分辨XEOL 同步辐射 软X射线 

分 类 号：O434.13[机械工程—光学工程]