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Title: Phase-space matching between bent Laue and flat Bragg crystals

Journal Article · · Journal of Synchrotron Radiation (Online)
 [1];  [2];  [1];  [1];  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II)
  2. Qatar Univ., Doha (Qatar)
+ Show Author Affiliations

Through phase-space analysis of Dumond diagrams for a flat Bragg crystal, a single bent Laue crystal and a monochromator consisting of double-bent Laue crystals, this work shows that it is possible to match the flat Bragg crystal to both the single-crystal and double-crystal Laue monochromators. The matched system has the advantage that the phase space of the bent crystal's output beam is much larger than that of the flat crystal, making the combined system stable. Here it is suggested that such a matched system can be used at synchrotron facilities to realize X-ray dark-field imaging, analyzer-based imaging and diffraction-enhanced imaging at beamlines using double-Laue monochromators.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
SC0012704
OSTI ID:
1603281
Report Number(s):
BNL--213652-2020-JAAM
Journal Information:
Journal of Synchrotron Radiation (Online), Journal Name: Journal of Synchrotron Radiation (Online) Journal Issue: 6 Vol. 26; ISSN 1600-5775; ISSN JSYRES
Publisher:
International Union of CrystallographyCopyright Statement
Country of Publication:
United States
Language:
English

References (16)

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Fixed-exit monochromator for computed tomography with synchrotron radiation at energies 18–90 keV journal September 2000
Performance limits of direct cryogenically cooled silicon monochromators – experimental results at the APS journal January 2000
I12: the Joint Engineering, Environment and Processing (JEEP) beamline at Diamond Light Source journal April 2015
Producing parallel x rays with a bent-crystal monochromator and an x-ray tube journal September 2001
Absorption, refraction and scattering in analyzer-based imaging: comparison of different algorithms journal January 2010

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Related Subjects

36 MATERIALS SCIENCE
Dumond diagram
analyser-based imaging
analyzers
bent Laue crystals
diffraction-enhanced imaging
high-energy X-rays
monochromator
phase space
phase-contrast imaging