Qualification of a high-efficiency, gated spectrometer for x-ray Thomson scattering on the National Ignition Facility

被引：21
|
作者：
Doeppner, T. [1 ]
Kritcher, A. L. [1 ]
Neumayer, P. [2 ]
Kraus, D. [3 ]
Bachmann, B. [1 ]
Burns, S. [1 ]
Falcone, R. W. [3 ,4 ]
Glenzer, S. H. [5 ]
Hawreliak, J. [1 ]
House, A. [1 ]
Landen, O. L. [1 ]
LePape, S. [1 ]
Ma, T. [1 ]
Pak, A. [1 ]
Swift, D. [1 ]
机构：
[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
[2] Gesell Schwerionenphys, D-64291 Darmstadt, Germany
[3] Univ Calif Berkeley, Berkeley, CA 94720 USA
[4] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
[5] SLAC Natl Accelerator Lab, Menlo Pk, CA 94309 USA
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2014年 / 85卷 / 11期
关键词：
CRYSTALS;
D O I：
10.1063/1.4890253
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We have designed, built, and successfully fielded a highly efficient and gated Bragg crystal spectrometer for x-ray Thomson scattering measurements on the National Ignition Facility (NIF). It utilizes a cylindrically curved Highly Oriented Pyrolytic Graphite crystal. Its spectral range of 7.4-10 keV is optimized for scattering experiments using a Zn He-alpha x-ray probe at 9.0 keV or Mo K-shell line emission around 18 keV in second diffraction order. The spectrometer has been designed as a diagnostic instrument manipulator-based instrument for the NIF target chamber at the Lawrence Livermore National Laboratory, USA. Here, we report on details of the spectrometer snout, its novel debris shield configuration and an in situ spectral calibration experiment with a Brass foil target, which demonstrated a spectral resolution of E/Delta E = 220 at 9.8 keV. (C) 2014 AIP Publishing LLC.
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页数：3
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