A novel flat-response x-ray detector in the photon energy range of 0.1-4 keV.
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.
Li
Zhichao
Z
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.
Jiang
Xiaohua
X
Liu
Shenye
S
Huang
Tianxuan
T
Zheng
Jian
J
Yang
Jiamin
J
Li
Sanwei
S
Guo
Liang
L
Zhao
Xuefeng
X
Du
Huabin
H
Song
Tianming
T
Yi
Rongqing
R
Liu
Yonggang
Y
Jiang
Shaoen
S
Ding
Yongkun
Y