Design parameters of transmission curved crystal spectrometer for hard X-ray diagnoses

Qian Feng; Cao Leifeng; Xiao Shali; Zhou Weimin; Zhao Zongqing; Gu Yuqiu; Yan Yonghong; Wei Lai

doi:10.3788/HPLPB20132509.2292

Volume 25 Issue 09

Jul. 2013

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(09): 2292-2296

Xu Gang, Xie Ping, Liao Yong, et al. Frequency response of switched high power mesoband electromagnetic pulse generator[J]. High Power Laser and Particle Beams, 2013, 25: 2363-2367. doi: 10.3788/HPLPB20132509.2363

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Qian Feng, Cao Leifeng, Xiao Shali, et al. Design parameters of transmission curved crystal spectrometer for hard X-ray diagnoses[J]. High Power Laser and Particle Beams, 2013, 25: 2292-2296. doi: 10.3788/HPLPB20132509.2292

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Design parameters of transmission curved crystal spectrometer for hard X-ray diagnoses

doi: 10.3788/HPLPB20132509.2292

1.
College of Opto-Electronic Engineering,Chongqing University,Chongqing 400030,China;
2.
Research Center of Laser Fusion,CAEP,P.O.Box 919-986-6,Mianyang 621900,China

Received Date: 2012-11-17
Rev Recd Date: 2013-04-09
Publish Date: 2013-07-17

Abstract

Abstract

The high resolving measurement of hard X-ray spectra generated in laser-produced plasma is usually performed using a cylindrically curved crystal spectrometer. In this paper, theoretical analysis and numerical simulation are performed to investigate the dependence of the energy range and resolving power on various design parameters, including crystal bending radius, source to crystal standoff distance, source size, location of the detector, etc. The investigation provides a means to design and develop cylindrically transmission curved crystal spectrometer which is used in hard X-ray diagnostics. The results show that crystal bending radius has a great influence on energy range of spectra and resolving power, and the separation between the spectral lines increases with the distance behind the focal circle faster than the line width, resulting in increased resolving power with distance.
- spectrum diagnoses,
- transmission curved crystal,
- hard X-ray,
- design parameters,
- resolution

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