A photoelectron velocity map imaging spectrometer for experiments combining synchrotron and laser radiations.
A photoelectron velocity map imaging spectrometer for experiments combining synchrotron and laser radiations.
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用于结合同步加速器和激光辐射实验的光电子速度图成像光谱仪。
DOI：
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发表时间：
2011
影响因子：
1.6
通讯作者：
L. Avaldi
中科院分区：
文献类型：
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作者：
P. O’Keeffe;P. Bolognesi;M. Coreno;A. Moise;R. Richter;G. Cautero;L. Stebel;R. Sergo;L. Pravica;Y. Ovcharenko;L. Avaldi
描述了专为结合同步加速器和激光辐射的泵浦探针实验而设计的速度图成像/离子飞行时间光谱仪。内部构建的延迟线检测器可以在两种模式下使用：高空间分辨率模式和重合模式。在高空间分辨率模式下，动能分辨率已达到 6%。重合模式可用于提高泵浦探针实验的信噪比，方法是仅在激光存在时使用门对电子进行计数，或者记录与电离过程中形成的离子的重合。
A velocity map imaging/ion time-of-flight spectrometer designed specifically for pump-probe experiments combining synchrotron and laser radiations is described. The in-house built delay line detector can be used in two modes: the high spatial resolution mode and the coincidence mode. In the high spatial resolution mode a kinetic energy resolution of 6% has been achieved. The coincidence mode can be used to improve signal-to-noise ratio for the pump-probe experiments either by using a gate to count electrons only when the laser is present or by recording coincidences with the ion formed in the ionization process.