Abstract
The National Ignition Facility (NIF) is capable of creating new and novel high-energy-density (HED) systems relevant to astrophysics. Specifically, a system could be created that studies the effects of a radiative shock on a hydrodynamically unstable interface. These dynamics would be relevant to the early evolution after a core-collapse supernova of a red supergiant star. Prior to NIF, no HED facility had enough energy to perform this kind of experiment. The experimental target will include a 340 μm predominantly plastic ablator followed by a low-density SiO2 foam. The interface will have a specific, machined pattern that will seed hydrodynamic instabilities. The growth of the instabilities in a radiation-dominated environment will be observed. This experiment requires a ≥300 eV hohlraum drive and will be diagnosed using point projection pinhole radiography, which have both been recently demonstrated on NIF.
Original language | English (US) |
---|---|
Pages (from-to) | 207-211 |
Number of pages | 5 |
Journal | Astrophysics and Space Science |
Volume | 336 |
Issue number | 1 |
DOIs | |
State | Published - Nov 2011 |
Keywords
- Hydrodynamic instability
- Laboratory astrophysics
- National Ignition Facility
- Radiation hydrodynamics
- Radiative shocks
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science