Cross-Beam Energy Transfer in Simulations of NIF-Scale Shock-Ignition Experiments
Abstract
Recent experiments at the National Ignition Facility (NIF) have characterized the laser energy coupling to the strong shock at shock-ignition-relevant laser intensities. Analysis of these experiments has shown that a significant amount of energy is scattered away from the target due to cross-beam energy transfer (CBET). This effect has generally not been accounted for in previous simulations of shock-ignition implosions. This talk will present results from 2-D DRACO simulations of these experiments using a pump-depletion model of CBET to compare with data from these experiments. Implications for previous shock-ignition designs for the NIF will be discussed.
This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0003856.- Publication:
-
APS Division of Plasma Physics Meeting Abstracts
- Pub Date:
- 2020
- Bibcode:
- 2020APS..DPPTO08009