Radiative shocks: New results for laboratory astrophysics

Details Radiative shocks: New results for laboratory astrophysics Radiative shocks: New results for laboratory astrophysics

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006jphy4.133.1039v&link_type=abstract

Journal de Physique IV (Proceedings), Volume 133, Issue 1, June 2006, pp.1039-1041

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

In the framework of the Laboratory Astrophysics, we present new radiative shocks experiments performed using the LULI2000 facility. A strong shock is driven in a multi-layered solid target (CH-Ti-CH) which accelerates into a gas cell (˜ 60 km/s) filled with Xenon at low pressure (0.1 - 0.3 bar) and produces a radiative supercritical shock [4, 8]. A low power laser beam (8 ns - 532 nm) probes the Xenon gas in the transverse direction and is injected into a VISAR and on two optical framing cameras (GOI). These diagnostics allow to determine electron density variation, to measure both precursor and shock velocities along the shock propagation axis [3, 5] as well as the 2D shape of the shock. On rear side, the light emitted from the shocked Xenon is imaged onto the slit of a streak camera. An absolute calibration of the optical system allows to determine the brightness temperature [8]. Data were obtained for different laser intensities and gas pressures. Two VISARs on rear side allowed an accurate measurement of the shock conditions in the pusher before the breakout in the Xenon. Comparison between 1D (MULTI) and 2D (DUED [1, 2]) radiative hydrodynamic codes and measured quantities (shock velocity, shape, radial expansion, and temperature as well as precursor velocity and precursor electron density) are presented.

Affiliated with

Also associated with

No associations

Rating

Radiative shocks: New results for laboratory astrophysics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Radiative shocks: New results for laboratory astrophysics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radiative shocks: New results for laboratory astrophysics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1064877