A compact high current pulsed electron gun with subnanosecond electron pulse widths

1 November 1984

journal article
Published by IOP Publishing in Journal of Physics E: Scientific Instruments

Vol. 17 (11) , 1008-1013
https://doi.org/10.1088/0022-3735/17/11/022

Abstract

A magnetically-collimated, double-pulsed electron gun capable of generating electron pulses with a peak instantaneous current of approximately 70 mu A and a temporal width of 0.35 ns (FWHM) has been developed. Calibration is accomplished by measuring the lifetime of the well known 2¹P to 1¹S transition in helium (58.4 nm) at a near threshold electron impact energy by use of the delayed coincidence technique.

Keywords

This publication has 6 references indexed in Scilit:

High-resolution pulsed electron beam time-of-flight spectrometer
Review of Scientific Instruments, 1977
The measurement of lifetimes in atoms, molecules and ions
Reports on Progress in Physics, 1977
Electron gun for generation of subnanosecond electron packets at very high repetition rate
Review of Scientific Instruments, 1976
Dipole oscillator strengths, with rigorous limits of error, for He and ${Li}^{+}$
Physical Review A, 1974
Lifetime of the $2 {}^{1}P_{1}$ and $3 {}^{1}P_{1}$ States of Atomic Helium
Physical Review A, 1971
Limiting Current Densities in Electron Beams
Journal of Applied Physics, 1939