Results EBCT had the advantage of high speed in scanning and high resolving power of time without mechanical abrasion due to the using of electron beam.

There will be an antinomy among sample frequency, memory capacitance and the width of window of sample time for developing the resolving power of LA while we taking the LA to test an digital system.

A new electron impact storage ion source has been designed for time of flight mass spectrometers with a high mass resolving power and high sensitivity.