A pressure cell for nonresonant inelastic x-ray scattering studies of gas phases.
A pressure cell for nonresonant inelastic x-ray scattering studies of gas phases.
复制标题
用于气相非共振非弹性 X 射线散射研究的压力盒。
DOI：
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发表时间：
2008
影响因子：
1.6
通讯作者：
A. Skilton
中科院分区：
文献类型：
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作者：
M. Minzer;J. Bradley;R. Musgrave;G. Seidler;A. Skilton
我们报道了气相样品池的设计和性能，用于测量动量传递(q)相关的非谐振非弹性x射线散射（NRIXS）。NRIXS对2mpa （20 bar）氦气体的测量很容易证明双电子激发的允许偶极子和禁止偶极子的最终状态。气相NRIXS测量结果与相应的非共振电子能量损失光谱结果（EELS）的直接比较，对于需要双微分截面绝对归一化的研究来说，将是表征两种技术系统误差的有价值的方法。
We report the design and performance of a gas-phase sample cell for measurements of momentum transfer (q) dependent nonresonant inelastic x-ray scattering (NRIXS). NRIXS measurements from He gas at 2 MPa (20 bars) readily demonstrate dipole-allowed and dipole-forbidden final states for two-electron excitations. Direct comparison of gas-phase NRIXS measurements with the corresponding nonresonant electron energy loss spectroscopy results (EELS) will be a valuable method for characterizing systematic errors in either technique for studies that require absolute normalization of the double differential cross section.