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Design of a multilayer-based collimated plane-grating monochromator for tender X-ray range
Collimated plane-grating monochromators (cPGMs), consisting of a plane mirror and plane diffraction grating, are essential optics in synchrotron radiation sources for their remarkable flexibility and good optical characteristics in the soft X-ray region. However, the poor energy transport efficiency...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5182023/ https://www.ncbi.nlm.nih.gov/pubmed/28009556 http://dx.doi.org/10.1107/S1600577516017884 |
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author | Yang, Xiaowei Wang, Hongchang Hand, Matthew Sawhney, Kawal Kaulich, Burkhard Kozhevnikov, Igor V. Huang, Qiushi Wang, Zhanshan |
author_facet | Yang, Xiaowei Wang, Hongchang Hand, Matthew Sawhney, Kawal Kaulich, Burkhard Kozhevnikov, Igor V. Huang, Qiushi Wang, Zhanshan |
author_sort | Yang, Xiaowei |
collection | PubMed |
description | Collimated plane-grating monochromators (cPGMs), consisting of a plane mirror and plane diffraction grating, are essential optics in synchrotron radiation sources for their remarkable flexibility and good optical characteristics in the soft X-ray region. However, the poor energy transport efficiency of a conventional cPGM (single-layer-coated) degrades the source intensity and leaves reduced flux at the sample, especially for the tender X-ray range (1–4 keV) that covers a large number of K- and L-edges of medium-Z elements, and M-edges of high-Z elements. To overcome this limitation, the use of a multilayer-based cPGM is proposed, combining a multilayer-coated plane mirror with blazed multilayer gratings. With this combination, the effective efficiency of cPGMs can be increased by an order of magnitude compared with the conventional single-layer cPGMs. In addition, higher resolving power can be achieved with improved efficiency by increasing the blaze angle and working at higher diffraction order. |
format | Online Article Text |
id | pubmed-5182023 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | International Union of Crystallography |
record_format | MEDLINE/PubMed |
spelling | pubmed-51820232017-01-10 Design of a multilayer-based collimated plane-grating monochromator for tender X-ray range Yang, Xiaowei Wang, Hongchang Hand, Matthew Sawhney, Kawal Kaulich, Burkhard Kozhevnikov, Igor V. Huang, Qiushi Wang, Zhanshan J Synchrotron Radiat Research Papers Collimated plane-grating monochromators (cPGMs), consisting of a plane mirror and plane diffraction grating, are essential optics in synchrotron radiation sources for their remarkable flexibility and good optical characteristics in the soft X-ray region. However, the poor energy transport efficiency of a conventional cPGM (single-layer-coated) degrades the source intensity and leaves reduced flux at the sample, especially for the tender X-ray range (1–4 keV) that covers a large number of K- and L-edges of medium-Z elements, and M-edges of high-Z elements. To overcome this limitation, the use of a multilayer-based cPGM is proposed, combining a multilayer-coated plane mirror with blazed multilayer gratings. With this combination, the effective efficiency of cPGMs can be increased by an order of magnitude compared with the conventional single-layer cPGMs. In addition, higher resolving power can be achieved with improved efficiency by increasing the blaze angle and working at higher diffraction order. International Union of Crystallography 2017-01-01 /pmc/articles/PMC5182023/ /pubmed/28009556 http://dx.doi.org/10.1107/S1600577516017884 Text en © Xiaowei Yang et al. 2017 http://creativecommons.org/licenses/by/2.0/uk/ This is an open-access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited. |
spellingShingle | Research Papers Yang, Xiaowei Wang, Hongchang Hand, Matthew Sawhney, Kawal Kaulich, Burkhard Kozhevnikov, Igor V. Huang, Qiushi Wang, Zhanshan Design of a multilayer-based collimated plane-grating monochromator for tender X-ray range |
title | Design of a multilayer-based collimated plane-grating monochromator for tender X-ray range |
title_full | Design of a multilayer-based collimated plane-grating monochromator for tender X-ray range |
title_fullStr | Design of a multilayer-based collimated plane-grating monochromator for tender X-ray range |
title_full_unstemmed | Design of a multilayer-based collimated plane-grating monochromator for tender X-ray range |
title_short | Design of a multilayer-based collimated plane-grating monochromator for tender X-ray range |
title_sort | design of a multilayer-based collimated plane-grating monochromator for tender x-ray range |
topic | Research Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5182023/ https://www.ncbi.nlm.nih.gov/pubmed/28009556 http://dx.doi.org/10.1107/S1600577516017884 |
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