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Title: Dual crystal x-ray spectrometer at 1.8 keV for high repetition-rate single-photon counting spectroscopy experiments

Journal Article · · Journal of Instrumentation
 [1];  [2];  [3];  [4];  [5];  [6];  [1];  [7];  [2];  [1];  [1];  [1];  [1];  [2];  [2];  [8];  [8];  [1];  [2];  [9] more »;  [9];  [10];  [9];  [2] « less
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. Univ. of California, Berkeley, CA (United States)
  4. SLAC National Accelerator Lab., Menlo Park, CA (United States); Univ. of Michigan, Ann Arbor, MI (United States)
  5. SLAC National Accelerator Lab., Menlo Park, CA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
  6. California Lutheran Univ., Thousand Oak, CA (United States)
  7. Univ. of Michigan, Ann Arbor, MI (United States)
  8. Franklin W. Olin College of Engineering, Olin Way Needham, MA (United States)
  9. Univ.of Rostock (Germany)
  10. Argonne National Lab. (ANL), Argonne, IL (United States)
+ Show Author Affiliations

The recent development of high-repetition rate x-ray free electron lasers (FEL), makes it possible to perform x-ray scattering and emission spectroscopy measurements from thin foils or gasses heated to high-energy density conditions by integrating over many experimental shots. Since the expected signal may be weaker than the typical CCD readout noise over the region-of-interest, it is critical to the success of this approach to use a detector with high-energy resolution so that single x-ray photons may be isolated. We describe a dual channel x-ray spectrometer developed for the Atomic and Molecular Optics endstation at the Linac Coherent Light Source (LCLS) for x-ray spectroscopy near the K-edge of aluminum. The spectrometer is based on a pair of curved PET (002) crystals coupled to a single pnCCD detector which simultaneously measures x-ray scattering and emission in the forward and backward directions. Furthermore, the signals from single x-ray photons are accumulated permitting continuous single-shot acquisition at 120 Hz.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC52-07NA27344; AC02-76SF00515; FG52-06NA26212
OSTI ID:
1336982
Report Number(s):
LLNL-JRNL-693139
Journal Information:
Journal of Instrumentation, Vol. 11, Issue 08; ISSN 1748-0221
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 1 work
Citation information provided by
Web of Science

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Cited By (2)

The LAMP instrument at the Linac Coherent Light Source free-electron laser text January 2018
The LAMP instrument at the Linac Coherent Light Source free-electron laser journal March 2018

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Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
42 ENGINEERING
Nuclear instruments and methods for hot plasma diagnostics
Plasma diagnostics - interferometry
spectroscopy and imaging
Plasma generation (laser-produced
RF
x ray-produced)