Design and calibration of an elliptical crystal spectrometer for the diagnosis of proton-induced x-ray emission(PIXE)  

作　　者：方言律 李东彧 程浩 高原 申泽清 杨童 李昱泽 夏亚东 晏炀 颜莎 林晨 颜学庆 Yanlyu Fang;Dongyu Li;Hao Cheng;Yuan Gao;Ze-Qing Shen;Tong Yang;Yu-Ze Li;Ya-Dong Xia;Yang Yan;Sha Yan;Chen Lin;Xue-Qing Yan(State Key Laboratory of Nuclear Physics and Technology and CAPT,Peking University,Beijing 100871,China;Beijing Laser Acceleration Innovation Center,Beijing 101400,China;Institute of Guangdong Laser Plasma Technology,Guangzhou 510540,China)

机构地区：[1]State Key Laboratory of Nuclear Physics and Technology and CAPT,Peking University,Beijing 100871,China [2]Beijing Laser Acceleration Innovation Center,Beijing 101400,China [3]Institute of Guangdong Laser Plasma Technology,Guangzhou 510540,China

出　　处：《Chinese Physics B》2023年第11期220-225,共6页中国物理B(英文版)

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos. 11975037 and 11921006);the National Grand Instrument Project of China (Grant Nos. 2019YFF01014400 and 2019YFF01014404)。

摘　　要：Laser-driven proton-induced x-ray emission(laser-PIXE) is a nuclear analysis method based on the compact laser ion accelerator. Due to the transient process of ion acceleration, the laser-PIXE signals are usually spurted within nanoseconds and accompanied by strong electromagnetic pulses(EMP), so traditional multi-channel detectors are no longer applicable.In this work, we designed a reflective elliptical crystal spectrometer for the diagnosis of laser-PIXE. The device can detect the energy range of 1 keV–11 ke V with a high resolution. A calibration experiment was completed on the electrostatic accelerator of Peking University using samples of Al, Ti, Cu, and ceramic artifacts. The detection efficiency of the elliptical crystal spectrometer was obtained in the order of 10-9.

关 键 词：elliptical crystal spectrometer proton-induced x-ray emission applications of laser ion accelera-tion 

分 类 号：O434.1[机械工程—光学工程]