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Pulsed-power-generated plasma of high reproducibility

Published online by Cambridge University Press:  09 March 2009

H. Kunze ,
R. Noll ,
C. R. Haas ,
M. Elfers ,
J. Hertzberg  and
G. Herziger
H. Kunze
Affiliation:
Fraunhofer-Institut für Lasertechnik, Steinbachstr. 15, D-5100 Aachen, Germany
R. Noll
Affiliation:
Fraunhofer-Institut für Lasertechnik, Steinbachstr. 15, D-5100 Aachen, Germany
C. R. Haas
Affiliation:
Lehrstuhl für Lasertechnik, RWTH Aachen, Steinbachstr. 15, D-5100 Aachen, Germany
M. Elfers
Affiliation:
Lehrstuhl für Lasertechnik, RWTH Aachen, Steinbachstr. 15, D-5100 Aachen, Germany
J. Hertzberg
Affiliation:
Lehrstuhl für Lasertechnik, RWTH Aachen, Steinbachstr. 15, D-5100 Aachen, Germany
G. Herziger
Affiliation:
Fraunhofer-Institut für Lasertechnik, Steinbachstr. 15, D-5100 Aachen, Germany Lehrstuhl für Lasertechnik, RWTH Aachen, Steinbachstr. 15, D-5100 Aachen, Germany
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Abstract

Plasmas of high reproducibility that are suitable for beam-plasma experiments are generated by a pulsed-power z-pinch discharge. The z-pinch device is designed as a plasma target for the investigation of ion beam-plasma interactions. The dynamic plasma state is characterized by the electron density, the electron temperature, and the magnetic field distribution, which are observed using time-resolved diagnostics. For z-pinch discharges in hydrogen, average electron densities of up to (2.6 ± 0.1) × 1018 electrons/cm3 were measured interferometrically. Electron temperatures in the range 2–7 eV are determined by time-resolved spectroscopy. The reproducibility of the electron density of the z-pinch discharge in terms of shot-to-shot fluctuations is estimated to be better than 3%. This is a favorable condition for performing beam-plasma experiments.

Type
Research Article
Information
Laser and Particle Beams , Volume 8 , Issue 4 , December 1990 , pp. 595 - 608
Copyright
Copyright © Cambridge University Press 1990

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