Journal article
X-ray characterisation by energy-resolved powder diffraction
- Abstract:
- A method for single-shot, non-destructive characterisation of broadband X-ray beams, based on energy-resolved powder diffraction, is described. Monte-Carlo simulations are used to simulate data for X-ray beams in the keV range with parameters similar to those generated by betatron oscillations in a laser-driven plasma accelerator. The retrieved X-ray spectra are found to be in excellent agreement with those of the input beams for realistic numbers of incident photons. It is demonstrated that the angular divergence of the X-rays can be deduced from the deviation of the detected photons from the Debye-Scherrer rings which would be produced by a parallel beam. It is shown that the angular divergence can be measured as a function of the photon energy, yielding the angularly-resolved spectrum of the input X-ray beam.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 2.2MB, Terms of use)
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- Publisher copy:
- 10.1103/PhysRevAccelBeams.19.082801
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review Accelerators and Beams More from this journal
- Volume:
- 19
- Pages:
- 082801
- Publication date:
- 2016-08-01
- Acceptance date:
- 2016-06-23
- DOI:
- Pubs id:
-
pubs:634690
- UUID:
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uuid:1915efe2-e20b-47bc-8fad-e25c4992afe1
- Local pid:
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pubs:634690
- Source identifiers:
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634690
- Deposit date:
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2016-07-20
Terms of use
- Copyright holder:
- Hooker et al
- Copyright date:
- 2016
- Notes:
- Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
- Licence:
- CC Attribution (CC BY)
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