Damage threshold of coating materials on x-ray mirror for x-ray free electron laser

Koyama, Takahisa; Yumoto, Hirokatsu; Miura, Takanori; Tono, Kensuke; Togashi, Tadashi; Inubushi, Yuichi; Katayama, Tetsuo; Kim, Jangwoo; Matsuyama, Satoshi; Yabashi, Makina; Yamauchi, Kazuto; Ohashi, Haruhiko

doi:https://doi.org/10.1063/1.4950723

Damage threshold of coating materials on x-ray mirror for x-ray free electron laser

Koyama, Takahisa; Yumoto, Hirokatsu; Miura, Takanori et al.

Review of Scientific Instruments, 2016, 87(5), 051801

Number of Access:1,092（2025-10-11 10:29 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/86947

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Title	Damage threshold of coating materials on x-ray mirror for x-ray free electron laser
Creator	NRID 1000020468276 1000020468276 CreatorName Koyama, Takahisa
	NRID 1000020423197 1000020423197 CreatorName Yumoto, Hirokatsu
	CreatorName Miura, Takanori
	NRID 1000000353508 1000000353508 CreatorName Tono, Kensuke
	NRID 1000060415239 1000060415239 CreatorName Togashi, Tadashi
	NRID 1000040506250 1000040506250 CreatorName Inubushi, Yuichi
	NRID 1000090648073 1000090648073 CreatorName Katayama, Tetsuo
	CreatorName Kim, Jangwoo
	NRID 1000010423196 1000010423196 CreatorName Matsuyama, Satoshi
	NRID 1000000372144 1000000372144 CreatorName Yabashi, Makina
	NRID 1000010174575 1000010174575 researchmap permalink yamauchikazuto yamauchikazuto Scopus Author ID 7801509680 7801509680 CreatorName Yamauchi, Kazuto
	NRID 1000030443550 1000030443550 CreatorName Ohashi, Haruhiko
Description	Takahisa Koyama, Hirokatsu Yumoto, Takanori Miura, Kensuke Tono, Tadashi Togashi, Yuichi Inubushi, Tetsuo Katayama, Jangwoo Kim, Satoshi Matsuyama, Makina Yabashi, Kazuto Yamauchi, and Haruhiko Ohashi, "Damage threshold of coating materials on x-ray mirror for x-ray free electron laser", Review of Scientific Instruments 87, 051801 (2016) https://doi.org/10.1063/1.4950723.
Abstract	We evaluated the damage threshold of coating materials such as Mo, Ru, Rh, W, and Pt on Si substrates, and that of uncoated Si substrate, for mirror optics of X-ray free electron lasers (XFELs). Focused 1 μm (full width at half maximum) XFEL pulses with the energies of 5.5 and 10 keV, generated by the SPring-8 angstrom compact free electron laser (SACLA), were irradiated under the grazing incidence condition. The damage thresholds were evaluated by in situ measurements of X-ray reflectivity degradation during irradiation by multiple pulses. The measured damage fluences below the critical angles were sufficiently high compared with the unfocused SACLA beam fluence. Rh coating was adopted for two mirror systems of SACLA. One system was a beamline transport mirror system that was partially coated with Rh for optional utilization of a pink beam in the photon energy range of more than 20 keV. The other was an improved version of the 1 μm focusing mirror system, and no damage was observed after one year of operation.
Publisher	American Institute of Physics
Source Title	Review of Scientific Instruments
Volume (Issue)	87(5)
Page	051801
Date of Issued	2016-05
Language	English
Handle URL	https://hdl.handle.net/11094/86947
PISSN	00346748
eISSN	10897623
NCID	AA00693547
Relation.isIdenticalTo	DOI (Publisher Version) https://doi.org/10.1063/1.4950723
Access Rights	open access
CopyRight	This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in (citation of published article) and may be found at https://doi.org/10.1063/1.4950723.
oaire:version	Version of Record
Category	学術雑誌論文 Journal Article

Resource Type	journal article
Local Type	Journal Article
DCMI Type	Text
DCTERMS.bibliographicCitation	Review of Scientific Instruments. 2016, 87(5), p. 051801
DC.title	Damage threshold of coating materials on x-ray mirror for x-ray free electron laser
DC.creator	Koyama, Takahisa
	Yumoto, Hirokatsu
	Miura, Takanori
	Tono, Kensuke
	Togashi, Tadashi
	Inubushi, Yuichi
	Katayama, Tetsuo
	Kim, Jangwoo
	Matsuyama, Satoshi
	Yabashi, Makina
	Yamauchi, Kazuto
	Ohashi, Haruhiko
DC.publisher	American Institute of Physics
DC.language' scheme='DCTERMS.RFC1766	English
DC.type' scheme='DCTERMS.DCMIType	Text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2016-05
DC.identifier	https://doi.org/10.1063/1.4950723
DC.description	Takahisa Koyama, Hirokatsu Yumoto, Takanori Miura, Kensuke Tono, Tadashi Togashi, Yuichi Inubushi, Tetsuo Katayama, Jangwoo Kim, Satoshi Matsuyama, Makina Yabashi, Kazuto Yamauchi, and Haruhiko Ohashi, "Damage threshold of coating materials on x-ray mirror for x-ray free electron laser", Review of Scientific Instruments 87, 051801 (2016) https://doi.org/10.1063/1.4950723.
DCTERMS.abstract	We evaluated the damage threshold of coating materials such as Mo, Ru, Rh, W, and Pt on Si substrates, and that of uncoated Si substrate, for mirror optics of X-ray free electron lasers (XFELs). Focused 1 μm (full width at half maximum) XFEL pulses with the energies of 5.5 and 10 keV, generated by the SPring-8 angstrom compact free electron laser (SACLA), were irradiated under the grazing incidence condition. The damage thresholds were evaluated by in situ measurements of X-ray reflectivity degradation during irradiation by multiple pulses. The measured damage fluences below the critical angles were sufficiently high compared with the unfocused SACLA beam fluence. Rh coating was adopted for two mirror systems of SACLA. One system was a beamline transport mirror system that was partially coated with Rh for optional utilization of a pink beam in the photon energy range of more than 20 keV. The other was an improved version of the 1 μm focusing mirror system, and no damage was observed after one year of operation.
DC.rights	This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in (citation of published article) and may be found at https://doi.org/10.1063/1.4950723.
DC.format	86947
citation_title	Damage threshold of coating materials on x-ray mirror for x-ray free electron laser
citation_author	Koyama, Takahisa
	Yumoto, Hirokatsu
	Miura, Takanori
	Tono, Kensuke
	Togashi, Tadashi
	Inubushi, Yuichi
	Katayama, Tetsuo
	Kim, Jangwoo
	Matsuyama, Satoshi
	Yabashi, Makina
	Yamauchi, Kazuto
	Ohashi, Haruhiko
citation_publisher	American Institute of Physics
citation_language	English
citation_date	2016-05
citation_journal_title	Review of Scientific Instruments
citation_volume	87
citation_issue	5
citation_firstpage	051801
citation_doi	https://doi.org/10.1063/1.4950723
citation_public_url	https://hdl.handle.net/11094/86947

Damage threshold of coating materials on x-ray mirror for x-ray free electron laser

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