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TEXS: in-vacuum tender X-ray emission spectrometer with 11 Johansson crystal analyzers.
Journal of Synchrotron Radiation ( IF 2.4 ) Pub Date : 2020-04-07 , DOI: 10.1107/s160057752000243x Mauro Rovezzi 1 , Alistair Harris 2 , Blanka Detlefs 3 , Timothy Bohdan 3 , Artem Svyazhin 3 , Alessandro Santambrogio 3 , David Degler 3 , Rafal Baran 3 , Benjamin Reynier 3 , Pedro Noguera Crespo 4 , Catherine Heyman 2 , Hans Peter Van Der Kleij 3 , Pierre Van Vaerenbergh 3 , Philippe Marion 3 , Hugo Vitoux 3 , Christophe Lapras 3 , Roberto Verbeni 3 , Menhard Menyhert Kocsis 3 , Alain Manceau 5 , Pieter Glatzel 3
Journal of Synchrotron Radiation ( IF 2.4 ) Pub Date : 2020-04-07 , DOI: 10.1107/s160057752000243x Mauro Rovezzi 1 , Alistair Harris 2 , Blanka Detlefs 3 , Timothy Bohdan 3 , Artem Svyazhin 3 , Alessandro Santambrogio 3 , David Degler 3 , Rafal Baran 3 , Benjamin Reynier 3 , Pedro Noguera Crespo 4 , Catherine Heyman 2 , Hans Peter Van Der Kleij 3 , Pierre Van Vaerenbergh 3 , Philippe Marion 3 , Hugo Vitoux 3 , Christophe Lapras 3 , Roberto Verbeni 3 , Menhard Menyhert Kocsis 3 , Alain Manceau 5 , Pieter Glatzel 3
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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.
中文翻译：
TEXS：真空招标 X 射线发射光谱仪，配有 11 个 Johansson 晶体分析仪。
介绍了针对 1.5 keV 至 5.5 keV 能量进行优化的大立体角 X 射线发射光谱仪的设计和初步结果。该光谱仪基于 11 个圆柱形弯曲的 Johansson 晶体分析仪阵列，排列成非色散罗兰圆几何形状。可实现的最小能量带宽小于该能量范围内吸收边的核心空穴寿命展宽。能量扫描是通过创新设计实现的，只需四个电机运动即可维持所有晶体的罗兰圆条件。整个光谱仪装在一个高真空室中，该室配备液氦低温恒温器，并为原位池和原位催化反应器提供足够的空间。
更新日期：2020-04-07
中文翻译：
TEXS：真空招标 X 射线发射光谱仪，配有 11 个 Johansson 晶体分析仪。
介绍了针对 1.5 keV 至 5.5 keV 能量进行优化的大立体角 X 射线发射光谱仪的设计和初步结果。该光谱仪基于 11 个圆柱形弯曲的 Johansson 晶体分析仪阵列，排列成非色散罗兰圆几何形状。可实现的最小能量带宽小于该能量范围内吸收边的核心空穴寿命展宽。能量扫描是通过创新设计实现的，只需四个电机运动即可维持所有晶体的罗兰圆条件。整个光谱仪装在一个高真空室中，该室配备液氦低温恒温器，并为原位池和原位催化反应器提供足够的空间。
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