首页   按字顺浏览 期刊浏览 卷期浏览 Toward improved temporal resolution in electron coincidence experiments
Toward improved temporal resolution in electron coincidence experiments

 

作者: P. E. Best,   Hong Zhu,  

 

期刊: Review of Scientific Instruments  (AIP Available online 1985)
卷期: Volume 56, issue 3  

页码: 389-397

 

ISSN:0034-6748

 

年代: 1985

 

DOI:10.1063/1.1138310

 

出版商: AIP

 

数据来源: AIP

 

摘要:

The two major contributions to the time spread of electrons detected after energy analysis in coincidence techniques are from the angular spread in the spectrometers and energy dispersion. We describe a compensation technique for each of these contributions. To compensate for the angular spread we would couple the first hemispherical electron spectrometer with an identical one, by means of an electron lens with a magnification of −1. Compensation for the energy spread is possible because in the spectrometers faster electrons have longer transit times, while the opposite is the case for electrons in field‐free space and in electron lenses. In each case there is a linear relationship between the time spread and the spread in kinetic energies.

 

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