Second-order focusing parallel electron energy magnetic sector analyzer designs

作者：Khursheed Anjam^*

来源：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2011, 645(1): 253-256.

DOI：10.1016/j.nima.2010.12.014

• Parallel magnetic sector analyzer
• Auger electron spectrometers
• Scanning electron microscope

This paper presents parallel magnetic sector analyzer designs that are predicted to have second-order or better focusing properties. Simulation results indicate that by reducing the gap between excitation plates in a compact parallel energy magnetic sector box design, second-order focusing regions in the detected energy spectrum can be obtained. A method for combining a first-order focusing magnetic box sector unit with a larger magnet sector unit is also presented in which, the field strength varies relatively slowly. Simulations predict that using a combination of such magnetic sector units, focusing properties better than second order can be achieved for most of the detected energy range.

• 出版日期2011-7-21