TEXS : in-vacuum tender X-ray emission spectrometer with 11 Johansson crystal analyzers

The design and first results of a large-solid-angle X-ray emission spectrometer that is optimized for energies between 1.5 keV and 5.5 keV are presented. The spectrometer is based on an array of 11 cylindrically bent Johansson crystal analyzers arranged in a non-dispersive Rowland circle geometry. T...

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Veröffentlicht in:Journal of synchrotron radiation. - 1994. - 27(2020), Pt 3 vom: 01. Mai, Seite 813-826
1. Verfasser: Rovezzi, Mauro (VerfasserIn)
Weitere Verfasser: Harris, Alistair, Detlefs, Blanka, Bohdan, Timothy, Svyazhin, Artem, Santambrogio, Alessandro, Degler, David, Baran, Rafal, Reynier, Benjamin, Noguera Crespo, Pedro, Heyman, Catherine, Van Der Kleij, Hans Peter, Van Vaerenbergh, Pierre, Marion, Philippe, Vitoux, Hugo, Lapras, Christophe, Verbeni, Roberto, Kocsis, Menhard Menyhert, Manceau, Alain, Glatzel, Pieter
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Journal of synchrotron radiation
Schlagworte:Journal Article Johansson crystal analyzers X-ray instrumentation X-ray optics tender X-rays wavelength dispersive spectrometer
Beschreibung
Zusammenfassung:The design and first results of a large-solid-angle X-ray emission spectrometer that is optimized for energies between 1.5 keV and 5.5 keV are presented. The spectrometer is based on an array of 11 cylindrically bent Johansson crystal analyzers arranged in a non-dispersive Rowland circle geometry. The smallest achievable energy bandwidth is smaller than the core hole lifetime broadening of the absorption edges in this energy range. Energy scanning is achieved using an innovative design, maintaining the Rowland circle conditions for all crystals with only four motor motions. The entire spectrometer is encased in a high-vacuum chamber that allocates a liquid helium cryostat and provides sufficient space for in situ cells and operando catalysis reactors
Beschreibung:Date Revised 08.10.2024
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1600-5775
DOI:10.1107/S160057752000243X