Dual toroidal photoelectron spectrometer for investigating photodouble ionization in atoms and molecules
Dual toroidal photoelectron spectrometer for investigating photodouble ionization in atoms and molecules
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DOI：
10.1063/1.1148180
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发表时间：
1997-07
影响因子：
1.6
通讯作者：
T. Reddish;G. Richmond;G. Bagley;J. Wightman;S. Cvejanović
中科院分区：
文献类型：
--
作者：
T. Reddish;G. Richmond;G. Bagley;J. Wightman;S. Cvejanović
本文介绍了一台用于研究同步辐射气体靶光双电离的光电子-光电子符合谱仪。能量分辨和角分散的电子图像记录使用二维位置敏感探测器。谱仪的设计和性能进行了描述，特别强调的电子光学性能的环形偏转器和它们相关的静电透镜。本文讨论了谱仪的工作和标定，并给出了氦的样品（γ，2 e）测量结果。
A photoelectron-photoelectron coincidence spectrometer, incorporating two independent toroidal analyzers, has been developed to study photodouble ionization of gas targets using synchrotron radiation. The energy-resolved and angle-dispersed electron images are recorded using two-dimensional position-sensitive detectors. The design and performance of the spectrometer is described, with particular emphasis on the electron optical properties of toroidal deflectors and their associated electrostatic lenses. The operation and calibration of the spectrometer are discussed and sample (γ,2e) results of helium are presented.