High pressure/high temperature cell for x-ray absorption and scattering techniques
High pressure/high temperature cell for x-ray absorption and scattering techniques
复制标题
用于 X 射线吸收和散射技术的高压/高温池
DOI：
10.1063/1.1884188
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发表时间：
2005
影响因子：
1.6
通讯作者：
J. Hazemann
中科院分区：
文献类型：
--
作者：
D. Testemale;R. Argoud;O. Geaymond;J. Hazemann
介绍了一种用于x射线吸收光谱、小角度x射线散射和非弹性x射线散射技术的高压/高温电池。P和T参数是独立控制的，它们的范围允许研究水溶液（T≤500°C和P≤2000bar）和液态金属和玻璃（T≤1700°C和P≤2000bar）。高压灭菌器技术的灵感来自于以前的高压/高温设备，但取得了很大的进步。独创的高压窗，既能保证耐压又能保证低吸光度，同时又能保证大角孔径。不同的配置可用于包含样品的内部细胞，无论它是否为水。作为该装置效率的一个例子，我们给出了0.01 m FeCl3水溶液从环境到超临界条件（375°C和300 bar）的初步x射线吸收结果。这些低浓度样品和低能谱（Fe K-edge在7112 eV）表明…
A high pressure/high temperature cell dedicated to x-ray absorption spectroscopy, small angle x-ray scattering, and inelastic x-ray scattering techniques is presented. The P and T parameters are controlled independently and their range allow the study of aqueous solutions (T⩽500°C and P⩽2000bar) and liquid metals and glasses (T⩽1700°C and P⩽2000bar). The autoclave technology is inspired from previous high pressure/high temperature equipments but great improvements are achieved. Original high pressure windows have been developed to ensure both pressure resistance and low absorbance combined with large angular aperture. Different configurations are available for the internal cell that contains the sample whether it is aqueous or not. As an example of the efficiency of the set-up, we present preliminary x-ray absorption results on 0.01 m FeCl3 aqueous solutions from ambient to supercritical conditions (375 °C and 300 bar). These low concentrations samples and low energy spectra (Fe K-edge is at 7112 eV) repr...