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Space-charge compensation of highly charged ion beam from laser ion source

Published online by Cambridge University Press:  09 March 2009

S.A. Kondrashev ,
J. Collier†  and
T. R. Sherwood†
S.A. Kondrashev
Affiliation:
Institute for Theoretical and Experimental Physics, 117259 Moscow, Russia
J. Collier†
Affiliation:
CERN, 1211 Geneva, Switzerland
T. R. Sherwood†
Affiliation:
CERN, 1211 Geneva, Switzerland
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Abstract

The problem of matching an ion beam delivered by a high-intensity ion source with an accelerator is considered. The experimental results of highly charged ion beam transport with space-charge compensation by electrons are presented. A tungsten thermionic cathode is used as a source of electrons for beam compensation. An increase of ion beam current density by a factor of 25 is obtained as a result of space-charge compensation at a distance of 3 m from the extraction system. The process of ion beam space-charge compensation, requirements for a source of electrons, and the influence of recombination losses in a spacecharge-compensated ion beam are discussed.

Type
Research Article
Information
Laser and Particle Beams , Volume 14 , Issue 3 , September 1996 , pp. 323 - 333
Copyright
Copyright © Cambridge University Press 1996

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