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Conducting versus insulating walls in a heavy ion reaction chamber

Published online by Cambridge University Press:  22 July 2003

J.-L. VAY ,
S. KAWATA ,
T. NAKAMURA ,
J. SASAKI ,
T. SOMEYA  and
C. DEUTSCH
J.-L. VAY
Affiliation:
Lawrence Berkeley National Laboratory, Berkeley, California
S. KAWATA
Affiliation:
Department of Energy and Environment Sciences, Utsunomiya University, Utsunomiya, Japan
T. NAKAMURA
Affiliation:
Department of Energy and Environment Sciences, Utsunomiya University, Utsunomiya, Japan
J. SASAKI
Affiliation:
Department of Energy and Environment Sciences, Utsunomiya University, Utsunomiya, Japan
T. SOMEYA
Affiliation:
Department of Energy and Environment Sciences, Utsunomiya University, Utsunomiya, Japan
C. DEUTSCH
Affiliation:
Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, Tokyo, Japan Present address: LPGP, Bât. 21, UPS, 91405 Orsay, France
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Abstract

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We first pay attention to the inflight charge state distribution in a Pb ion beam propagating in a reactor-sized chamber delimited by metallic walls. We thus compare Livermore (code BIC) and Orsay (code BPIC) distributions in the presence of a residual Flibe gas pressure. Next, we replace the electron plasma due to Flibe ionization by a gliding plasma produced by the polarization of the incoming ion beam on insulating walls. Corresponding electrons, when attracted by the beam, are demonstrated to yield a very efficient current neutralization.

Keywords

Flibe gas pressurePlasmaIon beamInsulating walls
Type
Research Article
Information
Laser and Particle Beams , Volume 21 , Issue 1 , January 2003 , pp. 41 - 46
Copyright
2003 Cambridge University Press