一种新型的平面响应X射线探测器，其光子能量范围为0.1 - 4 keV。

A novel flat-response x-ray detector in the photon energy range of 0.1-4 keV.

作者信息

Li Zhichao, Jiang Xiaohua, Liu Shenye, Huang Tianxuan, Zheng Jian, Yang Jiamin, Li Sanwei, Guo Liang, Zhao Xuefeng, Du Huabin, Song Tianming, Yi Rongqing, Liu Yonggang, Jiang Shaoen, Ding Yongkun

机构信息

Department of Modern Physics and CAS Key Laboratory of Basic Plasma Physics, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.

出版信息

Rev Sci Instrum. 2010 Jul;81(7):073504. doi: 10.1063/1.3460269.

DOI:10.1063/1.3460269

PMID:20687719

Abstract

A novel flat-response x-ray detector has been developed for the measurement of radiation flux from a hohlraum. In order to obtain a flat response in the photon energy range of 0.1-4 keV, it is found that both the cathode and the filter of the detector can be made of gold. A further improvement on the compound filter can then largely relax the requirement of the calibration x-ray beam. The calibration of the detector, which is carried out on Beijing Synchrotron Radiation Facility at Institute of High Energy Physics, shows that the detector has a desired flat response in the photon energy range of 0.1-4 keV, with a response flatness smaller than 13%. The detector has been successfully applied in the hohlraum experiment on Shenguang-III prototype laser facility. The radiation temperatures inferred from the detector agree well with those from the diagnostic instrument Dante installed at the same azimuth angle from the hohlraum axis, demonstrating the feasibility of the detector.

摘要

为测量来自黑体腔的辐射通量，已研发出一种新型的平响应X射线探测器。为在0.1 - 4 keV光子能量范围内获得平响应，发现探测器的阴极和滤光片均可由金制成。对复合滤光片的进一步改进可在很大程度上放宽对校准X射线束的要求。在中国科学院高能物理研究所的北京同步辐射装置上对该探测器进行的校准表明，该探测器在0.1 - 4 keV光子能量范围内具有理想的平响应，响应平整度小于13%。该探测器已成功应用于神光-III原型激光装置的黑体腔实验。从探测器推断出的辐射温度与安装在距黑体腔轴相同方位角处的诊断仪器Dante得出的辐射温度吻合良好，证明了该探测器的可行性。