Z -Pinch-Generated X Rays Demonstrate Potential for Indirect-Drive ICF Experiments

Hohlraums measuring 6 mm in diameter by 7 mm in height have been heated by x rays from a Z pinch. Over the measured x-ray input powers P of 0.7 to 13 TW, the hohlraum radiation temperature T increases from {approx}55 to {approx}130 eV , and is in agreement with the Planckian relation T{approx}P{sup 1/4} . The results suggest that indirect-drive inertial-confinement-fusion experiments involving National Ignition Facility relevant pulse shapes and <2 mm diameter capsules can be studied using this arrangement. (c) 1999 The American Physical Society.