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On the theory of synchrotron radiation nanofocusing with planar compound refractive lenses
Two new methods of computer simulation of synchrotron radiation nanofocusing with planar compound refractive lenses (PCRLs) are presented. The methods are based on the results of analytical theory. In contrast to previous works, the new methods take into account the PCRL aperture. It is especially...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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International Union of Crystallography
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9070703/ https://www.ncbi.nlm.nih.gov/pubmed/35510994 http://dx.doi.org/10.1107/S1600577522001345 |
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author | Kohn, V. G. |
author_facet | Kohn, V. G. |
author_sort | Kohn, V. G. |
collection | PubMed |
description | Two new methods of computer simulation of synchrotron radiation nanofocusing with planar compound refractive lenses (PCRLs) are presented. The methods are based on the results of analytical theory. In contrast to previous works, the new methods take into account the PCRL aperture. It is especially important at high photon energies, when absorption is low and the calculations based on analytical theory, i.e. without taking into account the aperture, give incorrect results. A computer program was created and specific results were obtained for a silicon PCRL having an aperture of 50 µm, element length of 102 µm and minimum thickness of 2 µm. For an energy of 50 keV and number of elements 300, it focuses the beam to 31 nm size at a distance of one and a half times its length. Analysis of the calculation accuracy for the proposed methods is performed, as well as a demonstration of the capabilities of the computer program. |
format | Online Article Text |
id | pubmed-9070703 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | International Union of Crystallography |
record_format | MEDLINE/PubMed |
spelling | pubmed-90707032022-05-10 On the theory of synchrotron radiation nanofocusing with planar compound refractive lenses Kohn, V. G. J Synchrotron Radiat Research Papers Two new methods of computer simulation of synchrotron radiation nanofocusing with planar compound refractive lenses (PCRLs) are presented. The methods are based on the results of analytical theory. In contrast to previous works, the new methods take into account the PCRL aperture. It is especially important at high photon energies, when absorption is low and the calculations based on analytical theory, i.e. without taking into account the aperture, give incorrect results. A computer program was created and specific results were obtained for a silicon PCRL having an aperture of 50 µm, element length of 102 µm and minimum thickness of 2 µm. For an energy of 50 keV and number of elements 300, it focuses the beam to 31 nm size at a distance of one and a half times its length. Analysis of the calculation accuracy for the proposed methods is performed, as well as a demonstration of the capabilities of the computer program. International Union of Crystallography 2022-03-14 /pmc/articles/PMC9070703/ /pubmed/35510994 http://dx.doi.org/10.1107/S1600577522001345 Text en © V. G. Kohn 2022 https://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. |
spellingShingle | Research Papers Kohn, V. G. On the theory of synchrotron radiation nanofocusing with planar compound refractive lenses |
title | On the theory of synchrotron radiation nanofocusing with planar compound refractive lenses |
title_full | On the theory of synchrotron radiation nanofocusing with planar compound refractive lenses |
title_fullStr | On the theory of synchrotron radiation nanofocusing with planar compound refractive lenses |
title_full_unstemmed | On the theory of synchrotron radiation nanofocusing with planar compound refractive lenses |
title_short | On the theory of synchrotron radiation nanofocusing with planar compound refractive lenses |
title_sort | on the theory of synchrotron radiation nanofocusing with planar compound refractive lenses |
topic | Research Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9070703/ https://www.ncbi.nlm.nih.gov/pubmed/35510994 http://dx.doi.org/10.1107/S1600577522001345 |
work_keys_str_mv | AT kohnvg onthetheoryofsynchrotronradiationnanofocusingwithplanarcompoundrefractivelenses |