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Title: Development of a ten inch manipulators-based, flexible, broadband two-crystal spectrometer

We have developed and implemented a broadband X-ray spectrometer with a variable energy range for use at the Atomic Weapons Establishment's Orion Laser. The spectrometer covers an energy bandwidth of ∼1–2 keV using two independently mounted, movable Bragg diffraction crystals. Using combinations of cesium hydrogen pthlate, ammonium dihydrogen phosphate, and pentaerythritol crystals, spectra covering the 1.4–2.5, 1.85–3.15, or 3.55–5.1 keV energy bands have been measured. Image plate is used for detection owing to its high dynamic range. Background signals caused by high energy X-rays and particles commonly produced in high energy laser experiments are reduced by a series of tantalum baffles and filters installed between the source and crystal and also between the crystals and detector.
Authors:
; ; ; ; ; ;  [1] ;  [2]
  1. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
  2. Atomic Weapons Establishment, Aldermaston (United Kingdom)
Publication Date:
OSTI Identifier:
22308593
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; AMMONIUM PHOSPHATES; BAFFLES; BRAGG REFLECTION; CRYSTALS; FILTERS; KEV RANGE; LASERS; MANIPULATORS; PLASTICIZERS; TANTALUM; X-RAY DETECTION; X-RAY SPECTROMETERS