Abstract Details
FULL-SCALE KINETIC MODELING OF SHORT-PULSE INTERACTION AND ELECTRON TRANSPORT IN CONE TARGET EXPERIMENTS
Author: Andreas J Kemp
Requested Type: Oral Only
Submitted: 2009-04-20 11:52:49
Co-authors: L.Divol, B.Cohen, S.Wilks, D.Strozzi, R.Town, M.Tabak and P.Patel
Contact Info:
LLNL
7000 East Ave,
Livermore, CA 94550
USA
Abstract Text:
We show the first collisional PIC simulation of a stand-alone cone target shot at LLNL's Titan laser, including the full-scale cone with a realistic preplasma calculated by the rad-hydro code HYDRA. The PIC simulations are run for 3ps in 2D to account for the entire Titan pulse shape and use a realistic laser spot. These simulations compare qualitatively well with the K-alpha images taken in the lab and provide insight on the physics of a cone target in realistic situations (picosecond time scales, preplasma, realistic laser spot). We further show how we are extending our modeling capabilities to simulate a cone-wire or cone slab target, and ultimately a realistic fast ignition target. We will show the first 2D simulations that can correctly account for the laser-plasma interaction in the low-density plasma and the transport in solid density matter in a single continuous run and discuss the numerical/physical approach.
This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.
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