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Title: Design of weak link channel-cut crystals for fast QEXAFS monochromators

Abstract

A weak link channel-cut crystal, optimized for dedicated Quick EXAFS monochromators and measurements, was designed using finite element analysis. This channel-cut crystal offers precise detuning capabilities to enable suppression of higher harmonics in the virtually monochromatic beam. It was optimized to keep the detuning stable, withstanding the mechanical load, which occurs during oscillations with up to 50 Hz. First tests at DELTA (Dortmund, Germany), proved the design.

Authors:
; ; ;  [1]
  1. Department of Physics, University of Wuppertal, Gaußstraße 20, 42119 Wuppertal (Germany)
Publication Date:
OSTI Identifier:
22608423
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1741; Journal Issue: 1; Conference: SRI2015: 12. international conference on synchrotron radiation instrumentation, New York, NY (United States), 6-10 Jul 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ABSORPTION SPECTROSCOPY; BEAMS; COMPUTERIZED SIMULATION; CRYSTALS; FINE STRUCTURE; FINITE ELEMENT METHOD; HARMONICS; MONOCHROMATIC RADIATION; MONOCHROMATORS; X-RAY SPECTROSCOPY

Citation Formats

Polheim, O. von, E-mail: vonpolheim@uni-wuppertal.de, Müller, O., Lützenkirchen-Hecht, D., and Frahm, R. Design of weak link channel-cut crystals for fast QEXAFS monochromators. United States: N. p., 2016. Web. doi:10.1063/1.4952913.
Polheim, O. von, E-mail: vonpolheim@uni-wuppertal.de, Müller, O., Lützenkirchen-Hecht, D., & Frahm, R. Design of weak link channel-cut crystals for fast QEXAFS monochromators. United States. doi:10.1063/1.4952913.
Polheim, O. von, E-mail: vonpolheim@uni-wuppertal.de, Müller, O., Lützenkirchen-Hecht, D., and Frahm, R. Wed . "Design of weak link channel-cut crystals for fast QEXAFS monochromators". United States. doi:10.1063/1.4952913.
@article{osti_22608423,
title = {Design of weak link channel-cut crystals for fast QEXAFS monochromators},
author = {Polheim, O. von, E-mail: vonpolheim@uni-wuppertal.de and Müller, O. and Lützenkirchen-Hecht, D. and Frahm, R.},
abstractNote = {A weak link channel-cut crystal, optimized for dedicated Quick EXAFS monochromators and measurements, was designed using finite element analysis. This channel-cut crystal offers precise detuning capabilities to enable suppression of higher harmonics in the virtually monochromatic beam. It was optimized to keep the detuning stable, withstanding the mechanical load, which occurs during oscillations with up to 50 Hz. First tests at DELTA (Dortmund, Germany), proved the design.},
doi = {10.1063/1.4952913},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1741,
place = {United States},
year = {Wed Jul 27 00:00:00 EDT 2016},
month = {Wed Jul 27 00:00:00 EDT 2016}
}