(e, 2e) electron momentum spectrometer with high sensitivity and high resolution
(e, 2e) electron momentum spectrometer with high sensitivity and high resolution
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DOI：
10.1063/1.1897668
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发表时间：
2005-05
影响因子：
1.6
通讯作者：
X. Ren;C. Ning;J. Deng;Shulian Zhang;G. Su;F. Huang;G. Li
中科院分区：
文献类型：
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作者：
X. Ren;C. Ning;J. Deng;Shulian Zhang;G. Su;F. Huang;G. Li
本文报道了一台高灵敏度、高分辨、能量和动量同时探测的（e，2e）电子动量谱仪。介绍了该谱仪的设计和性能。利用该谱仪，配以双环形分析器，可以准确、快速地获得轨道电子密度分布。氩和氦的实验结果显示，符合计数率、分辨率、灵敏度和可调实验能量范围的获得都有显著提高，这对进一步研究复杂体系的电子结构和电子关联具有重要意义。
A high sensitivity and high resolution (e, 2e) electron momentum spectrometer with simultaneous detection in energy and momentum are constructed. The design and performance of the spectrometer are reported. The orbital electron density distributions are obtained accurately and rapidly by using this spectrometer equipped with a double toroidal analyzer. The experimental results on argon and helium exhibit the significant improvements in coincidence count rates, resolution, sensitivity and obtainment of a wide range of adjustable experimental impact energies, which are crucial for further electron momentum spectroscopy studying electronic structure and electron correlation in complex systems.