Radiation energetics of ICF-relevant wire-array Z pinches.
Short-implosion-time 20-mm diameter, 300-wire tungsten arrays maintain high peak x-ray powers despite a reduction in peak current from 19 to 13 MA. The main radiation pulse on tests with a 1-mm on-axis rod may be explained by the observable j x B work done during the implosion, but bare-axis tests require sub-mm convergence of the magnetic field not seen except perhaps in >1 keV emission. The data include the first measurement of the imploding mass density profile of a wire-array Z pinch that further constrains simulation models.
Sinars
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Sandia National Laboratories, PO Box 5800, Albuquerque, New Mexico 87185, USA.
Lemke
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Cuneo
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Lebedev
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Waisman
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Stygar
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Jones
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Jones
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Yu
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Porter
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Wenger
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