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Diagnostics of discharge channels for neutralized chamber transport in heavy ion fusion

Published online by Cambridge University Press:  22 July 2003

C. NIEMANN ,
D. PENACHE ,
A. TAUSCHWITZ ,
F.B. ROSMEJ ,
S. NEFF ,
R. BIRKNER ,
C. CONSTANTIN ,
R. KNOBLOCH ,
R. PRESURA  and
S.S. YU
...Show all authors
C. NIEMANN
Affiliation:
Technische Universität Darmstadt, Darmstadt, Germany
D. PENACHE
Affiliation:
Technische Universität Darmstadt, Darmstadt, Germany
A. TAUSCHWITZ
Affiliation:
Technische Universität Darmstadt, Darmstadt, Germany Gesellschaft für Schwerionenforschung mbH, Darmstadt, Germany
F.B. ROSMEJ
Affiliation:
Gesellschaft für Schwerionenforschung mbH, Darmstadt, Germany
S. NEFF
Affiliation:
Technische Universität Darmstadt, Darmstadt, Germany
R. BIRKNER
Affiliation:
Technische Universität Darmstadt, Darmstadt, Germany
C. CONSTANTIN
Affiliation:
Technische Universität Darmstadt, Darmstadt, Germany
R. KNOBLOCH
Affiliation:
Technische Universität Darmstadt, Darmstadt, Germany
R. PRESURA
Affiliation:
Technische Universität Darmstadt, Darmstadt, Germany Present address: University of Nevada, Department of Physics, Reno, NV 89557, USA
S.S. YU
Affiliation:
Lawrence Berkeley National Laboratory, Berkeley, California
W.M. SHARP
Affiliation:
Lawrence Berkeley National Laboratory, Berkeley, California
D.M. PONCE
Affiliation:
Lawrence Berkeley National Laboratory, Berkeley, California
D.H.H. HOFFMANN
Affiliation:
Technische Universität Darmstadt, Darmstadt, Germany Gesellschaft für Schwerionenforschung mbH, Darmstadt, Germany
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Abstract

The final beam transport in the reactor chamber for heavy ion fusion in preformed plasma channels offers many attractive advantages compared to other transport modes. In the past few years, experiments at the Gesellschaft für Schwerionenforschung (GSI) accelerator facility have addressed the creation and investigation of discharge plasmas, designed for the transport of intense ion beams. Stable, self-standing channels of 50 cm length with currents up to 55 kA were initiated in low-pressure ammonia gas by a CO2-laser pulse along the channel axis before the discharge is triggered. The channels were characterized by several plasma diagnostics including interferometry and spectroscopy. We also present first experiments on laser-guided intersecting discharges.

Keywords

Chamber transportHeavy ion fusionz-discharge
Type
Research Article
Information
Laser and Particle Beams , Volume 21 , Issue 1 , January 2003 , pp. 13 - 15
Copyright
2003 Cambridge University Press

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