Question

Charging effect can be suppressed by supplying flood of electrons having which of the following?

(a) Uniform low energy

(b) Uniform low mass

(c) Uniform high energy

(d) Uniform high mass

I have been asked this question by my college director while I was bunking the class.

Question is taken from Instrumentation for Electron Spectroscopy in chapter Electron and Ion Spectrometers of Analytical Instrumentation

Answer 1

The correct answer is (a) Uniform low energy

To explain: Charging effect can be suppressed by supplying flood of electrons having uniform low energy. It also results in attainment of additional useful information.