Heavy-Metal Ceramic Hohlraums for Magnetically Assisted Ignition Targets
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Targets for magnetically-assisted ignition require specialized hohlraums that are made from an electrically non-conductive material. Such special-material hohlraums allow external magnetic fields to uniformly soak through the hohlraum and into the capsule prior to the laser drive. These requirements necessitate the development of an entirely new class of ceramic or intermetallic hohlraums since, in all previous hohlraum designs, solid-state electronic transport properties were not of interest and, hence, were not investigated. In this project, we have demonstrated the feasibility of the deposition of thick (>30 microns) and electrically-resistive (>100 micro-Ohm cm) gold-tantalum-based coatings by magnetron sputtering.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- DOE Contract Number:
- AC52-07NA27344
- OSTI ID:
- 1573176
- Report Number(s):
- LLNL-TR-795752; 997240
- Country of Publication:
- United States
- Language:
- English
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