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Silicon-nitride-based entrance slit design for the high-power-density monochromator in TPS 45A

Details of the design and operational status of the silicon-nitride-based entrance slit installed in the Taiwan Photon Source (TPS) 45A beamline are given. The slit is a diamond blade edge etched onto a copper slit part, which is in thermal contact with the silicon nitride base. A stable slit openin...

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Autores principales: Hsu, Ming-Ying, Fu, Huang-Wen, Fung, Hok-Sum, Hua, Chih-Yu, Huang, Liang-Jen, Tsai, Huang-Ming
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10481267/
https://www.ncbi.nlm.nih.gov/pubmed/37594863
http://dx.doi.org/10.1107/S1600577523006240
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author Hsu, Ming-Ying
Fu, Huang-Wen
Fung, Hok-Sum
Hua, Chih-Yu
Huang, Liang-Jen
Tsai, Huang-Ming
author_facet Hsu, Ming-Ying
Fu, Huang-Wen
Fung, Hok-Sum
Hua, Chih-Yu
Huang, Liang-Jen
Tsai, Huang-Ming
author_sort Hsu, Ming-Ying
collection PubMed
description Details of the design and operational status of the silicon-nitride-based entrance slit installed in the Taiwan Photon Source (TPS) 45A beamline are given. The slit is a diamond blade edge etched onto a copper slit part, which is in thermal contact with the silicon nitride base. A stable slit opening smaller than 4 µm is achieved in TPS 45A. The beam size at the slit has a full width at half-maximum of 3 µm in the vertical direction with a power of 20 W. Additionally, a hard stop made of invar is incorporated to control the thermal expansion displacement. The slit reduces the size and increases the stability of the source of the monochromator. Consequently, a higher energy resolution and excellent beamline stability are achieved.
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spelling pubmed-104812672023-09-07 Silicon-nitride-based entrance slit design for the high-power-density monochromator in TPS 45A Hsu, Ming-Ying Fu, Huang-Wen Fung, Hok-Sum Hua, Chih-Yu Huang, Liang-Jen Tsai, Huang-Ming J Synchrotron Radiat Research Papers Details of the design and operational status of the silicon-nitride-based entrance slit installed in the Taiwan Photon Source (TPS) 45A beamline are given. The slit is a diamond blade edge etched onto a copper slit part, which is in thermal contact with the silicon nitride base. A stable slit opening smaller than 4 µm is achieved in TPS 45A. The beam size at the slit has a full width at half-maximum of 3 µm in the vertical direction with a power of 20 W. Additionally, a hard stop made of invar is incorporated to control the thermal expansion displacement. The slit reduces the size and increases the stability of the source of the monochromator. Consequently, a higher energy resolution and excellent beamline stability are achieved. International Union of Crystallography 2023-08-18 /pmc/articles/PMC10481267/ /pubmed/37594863 http://dx.doi.org/10.1107/S1600577523006240 Text en © Ming-Ying Hsu et al. 2023 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
Hsu, Ming-Ying
Fu, Huang-Wen
Fung, Hok-Sum
Hua, Chih-Yu
Huang, Liang-Jen
Tsai, Huang-Ming
Silicon-nitride-based entrance slit design for the high-power-density monochromator in TPS 45A
title Silicon-nitride-based entrance slit design for the high-power-density monochromator in TPS 45A
title_full Silicon-nitride-based entrance slit design for the high-power-density monochromator in TPS 45A
title_fullStr Silicon-nitride-based entrance slit design for the high-power-density monochromator in TPS 45A
title_full_unstemmed Silicon-nitride-based entrance slit design for the high-power-density monochromator in TPS 45A
title_short Silicon-nitride-based entrance slit design for the high-power-density monochromator in TPS 45A
title_sort silicon-nitride-based entrance slit design for the high-power-density monochromator in tps 45a
topic Research Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10481267/
https://www.ncbi.nlm.nih.gov/pubmed/37594863
http://dx.doi.org/10.1107/S1600577523006240
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