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Overview of theory and modeling in the heavy ion fusion virtual national laboratory

Published online by Cambridge University Press:  12 February 2003

R.C. DAVIDSON ,
I.D. KAGANOVICH ,
W.W. LEE ,
H. QIN ,
E.A. STARTSEV ,
S. TZENOV ,
A. FRIEDMAN ,
J.J. BARNARD ,
R.H. COHEN  and
D.P. GROTE
...Show all authors
R.C. DAVIDSON
Affiliation:
Plasma Physics Laboratory, Princeton University, Princeton, NJ 08543
I.D. KAGANOVICH
Affiliation:
Plasma Physics Laboratory, Princeton University, Princeton, NJ 08543
W.W. LEE
Affiliation:
Plasma Physics Laboratory, Princeton University, Princeton, NJ 08543
H. QIN
Affiliation:
Plasma Physics Laboratory, Princeton University, Princeton, NJ 08543
E.A. STARTSEV
Affiliation:
Plasma Physics Laboratory, Princeton University, Princeton, NJ 08543
S. TZENOV
Affiliation:
Plasma Physics Laboratory, Princeton University, Princeton, NJ 08543
A. FRIEDMAN
Affiliation:
Lawrence Livermore National Laboratory, University of California, Livermore, CA 94550
J.J. BARNARD
Affiliation:
Lawrence Livermore National Laboratory, University of California, Livermore, CA 94550
R.H. COHEN
Affiliation:
Lawrence Livermore National Laboratory, University of California, Livermore, CA 94550
D.P. GROTE
Affiliation:
Lawrence Livermore National Laboratory, University of California, Livermore, CA 94550
S.M. LUND
Affiliation:
Lawrence Livermore National Laboratory, University of California, Livermore, CA 94550
W.M. SHARP
Affiliation:
Lawrence Livermore National Laboratory, University of California, Livermore, CA 94550
C.M. CELATA
Affiliation:
Lawrence Berkeley National Laboratory, University of California, Berkeley, CA 94720
M. DE HOON
Affiliation:
Lawrence Berkeley National Laboratory, University of California, Berkeley, CA 94720
E. HENESTROZA
Affiliation:
Lawrence Berkeley National Laboratory, University of California, Berkeley, CA 94720
E.P. LEE
Affiliation:
Lawrence Berkeley National Laboratory, University of California, Berkeley, CA 94720
S.S. YU
Affiliation:
Lawrence Berkeley National Laboratory, University of California, Berkeley, CA 94720
J.-L. VAY
Affiliation:
Lawrence Berkeley National Laboratory, University of California, Berkeley, CA 94720
D.R. WELCH
Affiliation:
Mission Research Corporation, Albuquerque, NM 87110
D.V. ROSE
Affiliation:
Mission Research Corporation, Albuquerque, NM 87110
C.L. OLSON
Affiliation:
Sandia National Laboratories, Albuquerque, NM 87110
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Abstract

This article presents analytical and simulation studies of intense heavy ion beam propagation, including the injection, acceleration, transport and compression phases, and beam transport and focusing in background plasma in the target chamber. Analytical theory and simulations that support the High Current Experiment (HCX), the Neutralized Transport Experiment (NTX), and the advanced injector development program, are being used to provide a basic understanding of the nonlinear beam dynamics and collective processes, and to develop design concepts for the next-step Integrated Beam Experiment (IBX), an Integrated Research Experiment (IRE), and a heavy ion fusion driver. Three-dimensional nonlinear perturbative simulations have been applied to collective instabilities driven by beam temperature anisotropy, and to two-stream interactions between the beam ions and any unwanted background electrons; three-dimensional particle-in-cell simulations of the 2-MV electrostatic quadrupole (ESQ) injector have clarified the influence of pulse rise time; analytical studies and simulations of the drift compression process have been carried out; syntheses of a four-dimensional particle distribution function from phase-space projections have been developed; and studies of the generation and trapping of stray electrons in the beam self-fields have been performed. Particle-in-cell simulations, involving preformed plasma, are being used to study the influence of charge and current neutralization on the focusing of the ion beam in NTX and in a fusion chamber.

Keywords

AccelerationCompression phaseHeavy ion fusionInjectionTransport phase
Type
Research Article
Information
Laser and Particle Beams , Volume 20 , Issue 3 , July 2002 , pp. 377 - 384
Copyright
© 2002 Cambridge University Press

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