Multispectral X-ray Imagaing for Core Temperature and Density Maps Retrieval in Direct Drive Implosions
We report on the experiments aimed at obtaining core temperature and density maps in direct drive implosions at the OMEGA Laser Facility using multi-monochromatic X-ray imagers. These instruments use an array of pinholes and a flat multilayer mirror to provide unique multi-spectral images distributed over a wide spectral range. Using Argon as a dopant in the DD-filled plastic shells produces emission images in the Ar He-b and Ly-b spectral regions. These images allow the retrieval of temperature and density maps of the plasma. We deployed three identical multi-monochromatic X-ray imagers in a quasi-orthogonal line-of-sight configuration to allow tomographic reconstruction of the structure of the imploding core.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 889439
- Report Number(s):
- UCRL-CONF-221179; TRN: US200619%%562
- Resource Relation:
- Conference: Presented at: High Temperature Plasma Diagnostics, Williamsburg, VA, United States, May 07 - May 11, 2006
- Country of Publication:
- United States
- Language:
- English
Similar Records
Core Temperature and Density Profiles from Multispectral Imaging of ICF Plasmas
Shell stability and conditions analyzed using a new method of extracting shell areal density maps from spectrally resolved images of direct-drive inertial confinement fusion implosions