Drive temperature and shock trajectory measurements in a dynamic hohlraum source on the Z-accelerator
Abstract
On the 20 MA Z accelerator we are investigating dynamic hohlraums as a source for imploding ICF capsules. In recent experiments we have used 15 mm tall nested tungsten wire arrays with a 4 cm diameter outer array (3 mg) and a 2 cm diameter inner array (1.5 mg) impacting an on-axis 5 mg/cc CH2 cylindrical foam converter target 1 cm in diameter. The wire array plasma striking the converter generates a radiating shock which heats the foam interior. Axial and radial imaging and x-ray power diagnostics were fielded and will be compared simulations. Preliminary analysis yields on-axis temperatures of 135 eV and shock velocities of 30 cm/µs consistent with modeling. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under contract DE-AC04-94AL85000
- Publication:
-
APS Division of Plasma Physics Meeting Abstracts
- Pub Date:
- October 2001
- Bibcode:
- 2001APS..DPPFO2008C