Energy broadening due to space-charge oscillations in high current electron beams

Details Energy broadening due to space-charge oscillations in high current electron beams Energy broadening due to space-charge oscillations in high current electron beams

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986georl..13...64k&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 13, Jan. 1986, p. 64-67.

Physics

5

Electron Acceleration, Electron Beams, Electron Emission, Space Charge, Electron Guns, Equations Of Motion, Sepac (Payload)

Scientific paper

During electron beam accelerator operation on Spacelab I, substantial fluxes of electrons were observed with energies greater than the initial beam energy. Numerical calculations are performed for the emission of an unneutralized, one-dimensional electron beam. These calculations show clearly that space charge oscillations, which are associated with the charge buildup on the emitter, strongly modify the beam and cause the returning beam particles to have a distribution of kinetic energies ranging from half to over twice the initial energy.

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