A portable on-axis laser-heating system for near-90° X-ray spectroscopy: application to ferropericlase and iron silicide
In: Journal of Synchrotron Radiation Journal of synchrotron radiation 27(2), 1-11 (2020). doi:10.1107/S1600577519017041 'Journal of Synchrotron Radiation ', vol: 27, pages: 414-424 (2020) Journal of Synchrotron Radiation, 27 (2)
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Zugriff:
A portable IR fiber laser-heating system, optimized for X-ray emission spectroscopy (XES) and nuclear inelastic scattering (NIS) spectroscopy with signal collection through the radial opening of diamond anvil cells near 90°with respect to the incident X-ray beam, is presented. The system offers double-sided on-axis heating by a single laser source and zero attenuation of incoming X-rays other than by the high-pressure environment. A description of the system, which has been tested for pressures above 100 GPa and temperatures up to 3000 K, is given. The XES spectra of laser-heated Mg0.67Fe0.33O demonstrate the potential to map the iron spin state in the pressure–temperature range of the Earth's lower mantle, and the NIS spectra of laser-heated FeSi give access to the sound velocity of this candidate of a phase inside the Earth's core. This portable system represents one of the few bridges across the gap between laser heating and high-resolution X-ray spectroscopies with signal collection near 90°.
Journal of Synchrotron Radiation, 27 (2)
ISSN:0909-0495
ISSN:1600-5775
| Titel: |
A portable on-axis laser-heating system for near-90° X-ray spectroscopy: application to ferropericlase and iron silicide
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| Autor/in / Beteiligte Person: | Libon, Lélia ; Albers, Christian ; Weis, Christopher ; Sinmyo, Ryosuke ; Biedermann, Nicole ; Sahle, Christoph J. ; Nyrow, Alexander ; Kupenko, Ilya ; Konôpková, Zuzana ; Wilke, Max ; Harder, Manuel ; Cerantola, Valerio ; Glazyrin, Konstantin ; Spiekermann, Georg ; Tolan, Metin ; Dubrovinsky, Leonid ; Sternemann, Christian ; Sergueev, Ilya ; Yavaş, Hasan ; Morgenroth, Wolfgang ; Petitgirard, Sylvain ; Spiekermann, G ; Kupenko, I ; Petitgirard, S ; Harder, M ; Nyrow, A ; Weis, C ; Albers, C ; Biedermann, N ; Libon, L ; Sahle, C ; Cerantola, V ; Glazyrin, K ; Konopkova, Z ; Sinmyo, R ; Morgenroth, W ; Sergueev, I ; Yava, H ; Dubrovinsky, L ; Tolan, M ; Sternemann, C ; Wilke, M |
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| Quelle: | Journal of Synchrotron Radiation Journal of synchrotron radiation 27(2), 1-11 (2020). doi:10.1107/S1600577519017041 'Journal of Synchrotron Radiation ', vol: 27, pages: 414-424 (2020) Journal of Synchrotron Radiation, 27 (2) |
| Veröffentlichung: | ETH Zurich, 2020 |
| Medientyp: | unknown |
| ISSN: | 0909-0495 (print) ; 1600-5775 (print) |
| DOI: | 10.3929/ethz-b-000406438 |
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