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Overview of virtual national laboratory objectives, plans, and projects

Published online by Cambridge University Press:  12 February 2003

B.G. LOGAN
Affiliation:
Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
C.M. CELATA
Affiliation:
Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
J.W. KWAN
Affiliation:
Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
E.P. LEE
Affiliation:
Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
M. LEITNER
Affiliation:
Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
P.A. SEIDL
Affiliation:
Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
S.S. YU
Affiliation:
Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
J.J. BARNARD
Affiliation:
Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
A. FRIEDMAN
Affiliation:
Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
W.R. MEIER
Affiliation:
Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
R.C. DAVIDSON
Affiliation:
Princeton Plasma Physics Laboratory, Princeton, NJ 08543, USA

Abstract

Significant experimental and theoretical progress has been made in the U.S. heavy ion fusion program on high-current sources, transport, and focusing. Currents over 200 mA have been transported through a matching section and 10 half-lattice periods with electric quadrupoles. An experiment shows control of high-beam current with an aperture, while avoiding secondary electrons. New theory and simulations of the neutralization of intense beam space charge with plasma in various focusing chamber configurations predict that near-emittance-limited beam focal spot sizes can be obtained even with beam perveance (ratio of beam space potential to ion energy) >10× higher than in earlier HIF focusing experiments. Progress in a new focusing experiment with plasma neutralization up to 10−3 perveance, and designs for a next-step experiment to study beam brightness evolution from source to target are described.

Type
Research Article
Copyright
© 2002 Cambridge University Press

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