Efficient Radiation Production in Long Implosions of Structured Gas-Puff Z Pinch Loads from Large Initial Radius

Journal Article · Fri Sep 02 00:00:00 EDT 2005 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.95.105001· OSTI ID:20699395

Sze, H; Banister, J; Failor, B H; Levine, J S; Qi, N; Sincerny, P ^[1]; Velikovich, A L; Davis, J ^[2]; Lojewski, D ^[3]

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1. L-3 Titan Pulse Sciences Division, San Leandro, California, 94577 (United States)
2. Plasma Physics Division, Naval Research Laboratory, Washington, D.C. 20375 (United States)
3. Defense Threat Reduction Agency, Albuquerque, New Mexico 87117 (United States)

We have proposed and demonstrated successfully a new approach for generating high-yield K-shell radiation with large-diameter gas-puff Z pinches. The novel load design consists of an outer region plasma that carries the current and couples energy from the driver, an inner region plasma that stabilizes the implosion, and a high-density center jet plasma that radiates. It increased the Ar K-shell yield at 3.46 MA in 200 ns implosions from 12 cm initial diameter by a factor of 2, to 21 kJ, matching the yields obtained earlier on the same accelerator with 100 ns implosions. A new ''pusher-stabilizer-radiator'' physical model is advanced to explain this result.

• OSTI ID: 20699395
• Journal Information: Physical Review Letters, Vol. 95, Issue 10; Other Information: DOI: 10.1103/PhysRevLett.95.105001; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACCELERATORS
ARGON
IMPLOSIONS
K SHELL
PLASMA
PLASMA JETS
RAYLEIGH-TAYLOR INSTABILITY
X-RAY SOURCES