Author:
Yan Wen-Chao ,Su Lu-Ning ,Lin Xiao-Xuan ,Du Fei ,Yuan Da-Wei ,Liao Guo-Qian ,Liu Cheng ,Shen Zhong-Wei ,Chen Li-Ming ,Li Yu-Tong ,Ma Jing-Long ,Lu Xin ,Wang Xuan ,Wang Zhao-Hua ,Wei Zhi-Yi ,Sheng Zheng-Ming ,Zhang Jie , ,
Abstract
A novel design of X-ray spectrometer is implemented, using a high efficiency HOPG (highly oriented pyrolitic graphite) Bragg crystal. The spectral resolution of it can reach above 350 with energy ranging from 6.891 to 9.193 keV, theoretically. And the efficiency are 3 order of magnitude higher than the ordinary X-ray crystal spectrometer. Application of this instrument is demonstrated in high intensity laser-foil interaction experiments. It is shown that HOPG spectrometer has much lower threshold of X-ray intensity than ordinary one. The spectral resolution for 8.048 keV (Cu Kup -line) can reach 40 eV, which gives the spectral resolution 200.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy