Transport Simulations for Fast Ignition on NIF

Conference · Mon Oct 26 00:00:00 EDT 2009

DOI:https://doi.org/10.1088/1742-6596/244/2/022065· OSTI ID:970154

Strozzi, D J; Tabak, M; Grote, D P; Cohen, B I; Shay, H D; Town, R J; Kemp, A J; Key, M

We are designing a full hydro-scale cone-guided, indirect-drive FI coupling experiment, for NIF, with the ARC-FIDO short-pulse laser. Current rad-hydro designs with limited fuel jetting into cone tip are not yet adequate for ignition. Designs are improving. Electron beam transport simulations (implicit-PIC LSP) show: (1) Magnetic fields and smaller angular spreads increase coupling to ignition-relevant 'hot spot' (20 um radius); (2) Plastic CD (for a warm target) produces somewhat better coupling than pure D (cryogenic target) due to enhanced resistive B fields; and (3) The optimal T{sub hot} for this target is {approx} 1 MeV; coupling falls by 3x as T{sub hot} rises to 4 MeV.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 970154
• Report Number(s): LLNL-CONF-418747; TRN: US1001001
• Resource Relation: Journal Volume: 244; Journal Issue: 2; Conference: Presented at: American Physical Society Division of Plasma Physics Meeting, Atlanta, GA, United States, Nov 02 - Nov 06, 2009
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
CONES
ELECTRON BEAMS
IGNITION
MAGNETIC FIELDS
PHYSICS
PLASMA
PLASTICS
TARGETS
TRANSPORT