Performance of quartz- and sapphire-based double-crystal high-resolution (~10 meV) RIXS monochromators under varying power loads
Abstract
In the context of a novel, high-resolution resonant inelastic X-ray scattering spectrometer, a flat-crystal-based quartz analyzer system has recently been demonstrated to provide an unprecedented intrinsic-energy resolution of 3.9 meV at the IrL3 absorption edge (11.215 keV) [Kimet al.(2018)Sci. Rep.8, 1958]. However, the overall instrument resolution was limited to 9.7 meV because of an 8.9 meV incident band pass, generated by the available high-resolution four-bounce Si(844) monochromator. In order to better match the potent resolving power of the novel analyzer with the energy band pass of the incident beam, a quartz(309)-based double-bounce, high-resolution monochromator was designed and implemented, expected to yield an overall instrument resolution of 6.0 meV. The choice of lower-symmetry quartz is very attractive because of its wealth of suitable near-backscattering reflections. However, it was found that during room-temperature operation typical levels of incident power, barely affecting the Si monochromator, caused substantial thermal distortions in the first crystal of the quartz monochromator, rendering it practically unusable. Finite-element analyses and heat-flow analyses corroborate this finding. As a high-flux, lower resolution (15.8 meV) alternative, a two-bounce sapphire(078) version was also tested and found to be less affected than quartz, but notably more than silicon.
- Authors:
-
- Argonne National Lab. (ANL), Lemont, IL (United States)
- Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
- Max-Planck-Institut fuer Festkoerperforschung, Stuttgart (Germany)
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1473620
- Grant/Contract Number:
- AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Synchrotron Radiation (Online)
- Additional Journal Information:
- Journal Name: Journal of Synchrotron Radiation (Online); Journal Volume: 25; Journal Issue: 4; Journal ID: ISSN 1600-5775
- Publisher:
- International Union of Crystallography
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; non-traditional crystal materials; RIXS; high-resolution monochromators; resonant inelastic X-ray scattering; x-ray optics
Citation Formats
Gog, Thomas, Casa, Diego M., Knopp, Jonathan, Kim, Jungho, Upton, Mary H., Krakora, Richard, Jaski, Alan, Said, Ayman, Yavaş, Hasan, Gretarsson, Hlynur, and Huang, Xian Rong. Performance of quartz- and sapphire-based double-crystal high-resolution (~10 meV) RIXS monochromators under varying power loads. United States: N. p., 2018.
Web. doi:10.1107/S1600577518005945.
Gog, Thomas, Casa, Diego M., Knopp, Jonathan, Kim, Jungho, Upton, Mary H., Krakora, Richard, Jaski, Alan, Said, Ayman, Yavaş, Hasan, Gretarsson, Hlynur, & Huang, Xian Rong. Performance of quartz- and sapphire-based double-crystal high-resolution (~10 meV) RIXS monochromators under varying power loads. United States. https://doi.org/10.1107/S1600577518005945
Gog, Thomas, Casa, Diego M., Knopp, Jonathan, Kim, Jungho, Upton, Mary H., Krakora, Richard, Jaski, Alan, Said, Ayman, Yavaş, Hasan, Gretarsson, Hlynur, and Huang, Xian Rong. Thu .
"Performance of quartz- and sapphire-based double-crystal high-resolution (~10 meV) RIXS monochromators under varying power loads". United States. https://doi.org/10.1107/S1600577518005945. https://www.osti.gov/servlets/purl/1473620.
@article{osti_1473620,
title = {Performance of quartz- and sapphire-based double-crystal high-resolution (~10 meV) RIXS monochromators under varying power loads},
author = {Gog, Thomas and Casa, Diego M. and Knopp, Jonathan and Kim, Jungho and Upton, Mary H. and Krakora, Richard and Jaski, Alan and Said, Ayman and Yavaş, Hasan and Gretarsson, Hlynur and Huang, Xian Rong},
abstractNote = {In the context of a novel, high-resolution resonant inelastic X-ray scattering spectrometer, a flat-crystal-based quartz analyzer system has recently been demonstrated to provide an unprecedented intrinsic-energy resolution of 3.9 meV at the IrL3 absorption edge (11.215 keV) [Kimet al.(2018)Sci. Rep.8, 1958]. However, the overall instrument resolution was limited to 9.7 meV because of an 8.9 meV incident band pass, generated by the available high-resolution four-bounce Si(844) monochromator. In order to better match the potent resolving power of the novel analyzer with the energy band pass of the incident beam, a quartz(309)-based double-bounce, high-resolution monochromator was designed and implemented, expected to yield an overall instrument resolution of 6.0 meV. The choice of lower-symmetry quartz is very attractive because of its wealth of suitable near-backscattering reflections. However, it was found that during room-temperature operation typical levels of incident power, barely affecting the Si monochromator, caused substantial thermal distortions in the first crystal of the quartz monochromator, rendering it practically unusable. Finite-element analyses and heat-flow analyses corroborate this finding. As a high-flux, lower resolution (15.8 meV) alternative, a two-bounce sapphire(078) version was also tested and found to be less affected than quartz, but notably more than silicon.},
doi = {10.1107/S1600577518005945},
journal = {Journal of Synchrotron Radiation (Online)},
number = 4,
volume = 25,
place = {United States},
year = {Thu May 31 00:00:00 EDT 2018},
month = {Thu May 31 00:00:00 EDT 2018}
}
Web of Science
Figures / Tables:
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Works referencing / citing this record:
X-ray back-diffraction: can we further increase the energy resolution by tuning the energy slightly below that of exact backscattering?
journal, October 2019
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Figures / Tables found in this record: