Abstract
Liquid layer implosions using the "wetted foam" technique, where the liquid fuel is wicked into a supporting foam, have been recently conducted on the National Ignition Facility for the first time [Olson et al., Phys. Rev. Lett. 117, 245001 (2016)]. We report on a series of wetted foam implosions where the convergence ratio was varied between 12 and 20. Reduced nuclear performance is observed as convergence ratio increases. 2-D radiation-hydrodynamics simulations accurately capture the performance at convergence ratios (CR) ∼ 12, but we observe a significant discrepancy at CR ∼ 20. This may be due to suppressed hot-spot formation or an anomalous energy loss mechanism.
| Original language | English (US) |
|---|---|
| Article number | 056304 |
| Journal | Physics of Plasmas |
| Volume | 25 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 1 2018 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics