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Modelling phase imperfections in compound refractive lenses

A framework based on physical optics for simulating the effect of imperfect compound refractive lenses (CRLs) upon an X-ray beam is described, taking into account measured phase errors obtained from at-wavelength metrology. A CRL stack is modelled, with increasing complexity, as a single thin phase...

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Detalles Bibliográficos
Autores principales: Celestre, Rafael, Berujon, Sebastien, Roth, Thomas, Sanchez del Rio, Manuel, Barrett, Raymond
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7842213/
https://www.ncbi.nlm.nih.gov/pubmed/32153269
http://dx.doi.org/10.1107/S1600577519017235
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author Celestre, Rafael
Berujon, Sebastien
Roth, Thomas
Sanchez del Rio, Manuel
Barrett, Raymond
author_facet Celestre, Rafael
Berujon, Sebastien
Roth, Thomas
Sanchez del Rio, Manuel
Barrett, Raymond
author_sort Celestre, Rafael
collection PubMed
description A framework based on physical optics for simulating the effect of imperfect compound refractive lenses (CRLs) upon an X-ray beam is described, taking into account measured phase errors obtained from at-wavelength metrology. A CRL stack is modelled, with increasing complexity, as a single thin phase element, then as a more realistic compound element including absorption and thickness effects, and finally adding realistic optical imperfections to the CRL. Coherent and partially coherent simulations using Synchrotron Radiation Workshop (SRW) are used to evaluate the different models, the effects of the phase errors and to check the validity of the design equations and suitability of the figures of merit.
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spelling pubmed-78422132021-02-05 Modelling phase imperfections in compound refractive lenses Celestre, Rafael Berujon, Sebastien Roth, Thomas Sanchez del Rio, Manuel Barrett, Raymond J Synchrotron Radiat Research Papers A framework based on physical optics for simulating the effect of imperfect compound refractive lenses (CRLs) upon an X-ray beam is described, taking into account measured phase errors obtained from at-wavelength metrology. A CRL stack is modelled, with increasing complexity, as a single thin phase element, then as a more realistic compound element including absorption and thickness effects, and finally adding realistic optical imperfections to the CRL. Coherent and partially coherent simulations using Synchrotron Radiation Workshop (SRW) are used to evaluate the different models, the effects of the phase errors and to check the validity of the design equations and suitability of the figures of merit. International Union of Crystallography 2020-02-11 /pmc/articles/PMC7842213/ /pubmed/32153269 http://dx.doi.org/10.1107/S1600577519017235 Text en © Rafael Celestre et al. 2020 http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.http://creativecommons.org/licenses/by/4.0/
spellingShingle Research Papers
Celestre, Rafael
Berujon, Sebastien
Roth, Thomas
Sanchez del Rio, Manuel
Barrett, Raymond
Modelling phase imperfections in compound refractive lenses
title Modelling phase imperfections in compound refractive lenses
title_full Modelling phase imperfections in compound refractive lenses
title_fullStr Modelling phase imperfections in compound refractive lenses
title_full_unstemmed Modelling phase imperfections in compound refractive lenses
title_short Modelling phase imperfections in compound refractive lenses
title_sort modelling phase imperfections in compound refractive lenses
topic Research Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7842213/
https://www.ncbi.nlm.nih.gov/pubmed/32153269
http://dx.doi.org/10.1107/S1600577519017235
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