Implosion dynamics and radiative characteristics of a high yield structured gas puff load

Journal Article · Tue Aug 15 04:00:00 EDT 2006 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2221660· OSTI ID:20860195

Levine, J S; Banister, J W; Failor, B H; Qi, N; Sze, H M; Velikovich, A L; Commisso, R J; Davis, J; Lojewski, D ^[1]

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1. L-3 Communications/Pulse Sciences, San Leandro, California 94577 (United States)

A large diameter gas puff nozzle, designed to produce a radial mass profile with a substantial fraction of the injected mass on the axis, has demonstrated an increase in K shell yield by nearly a factor of 2, to 21 kJ, in an argon Z pinch at 3.5 MA peak current and 205 ns implosion time [H. Sze, J. Banister, B. H. Failor, J. S. Levine, N. Qi, A. L. Velikovich, J. Davis, D. Lojewski, and P. Sincerny, Phys. Rev. Lett. 95, 105001 (2005)] and 80 kJ at 6 MA and 227 ns implosion time. The initial gas distribution produced by this nozzle has been determined and related to measured plasma dynamics during the implosion run-in phase. The role of two gas shells and the center jet are elucidated by the inclusion of a tracer element sequentially into each of the three independent plenums and by evacuating each plenum. The implosion dynamics and radiative characteristics of the Z pinches are presented.

• OSTI ID: 20860195
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 8 Vol. 13; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ARGON
DISTRIBUTION
ELECTRIC CURRENTS
ICF DEVICES
IMPLOSIONS
INERTIAL CONFINEMENT
K SHELL
LONGITUDINAL PINCH
PLASMA
RADIATION TRANSPORT
X-RAY SOURCES