Session CO1 - Compression and Burn.
ORAL session, Monday afternoon, November 15
Room 201/202, SCC
We present results from simulations performed to investigate the effects of dopant radiative cooling in inertial confinement fusion indirect-drive capsule implosion experiments. Using a 1-D radiation-hydrodynamics code that includes inline collisional-radiative modeling (HELIOS-CR), we compute in detail the non-LTE atomic kinetics and spectral characteristics for the Ar-doped DD fuel. We examine the sensitivity of the fuel temperature and neutron yield to the Ar dopant concentration. Simulation results with 0.1% Ar are compared with electron temperature and density distributions inferred from data obtained in OMEGA indirect-drive experiments. The incident radiation drive on the capsule is computed with a 3-D view factor code (VISRAD) using the laser beam pointings and powers from the OMEGA experiments. We also examine the sensitivity of the calculated compressed core electron temperatures and neutron yields to the radiation drive on the capsule, and to the radiation and atomic modeling in the simulations.