Time-resolved characterization of Hohlraum radiation temperature via interferometer measurement of quartz shock velocity

Journal Article · Sun Oct 15 04:00:00 EDT 2006 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.2336458· OSTI ID:20861230

Olson, R E; Bradley, D K; Rochau, G A; Collins, G W; Leeper, R J; Suter, L J ^[1]

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1. Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)

A new technique for time-resolved measurement of Hohlraum radiation temperature has been successfully tested in Hohlraums with radiation temperatures in the range of 90-170 eV. In these experiments, Hohlraum radiation fields produced ablatively driven shock waves in quartz samples. A line-imaging velocity interferometer was used to track the quartz shock velocity as a function of time, and an empirical relationship (determined in these experiments) was used to relate the measured shock velocity to the Hohlraum radiation temperature. The test experiments were performed at the Omega facility [J. M. Soures et al., Phys. Plasmas 3, 2108 (1996)] at the University of Rochester Laboratory for Laser Energetics. The technique should also be useful for Hohlraum temperature measurements at other DOE/NNSA high energy density experimental facilities, such as the Z facility [R. B. Spielman et al., Phys. Plasmas 5, 2105 (1998)] at Sandia National Laboratories and the National Ignition Facility [E. I. Moses, Fusion Sci. Technol. 44, 11 (2003)] at Lawrence Livermore National Laboratory.

• OSTI ID: 20861230
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 10 Vol. 77; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ENERGY DENSITY
EV RANGE 10-100
EV RANGE 100-1000
INTERFEROMETERS
ION TEMPERATURE
LAWRENCE LIVERMORE NATIONAL LABORATORY
OMEGA FACILITY
PLASMA
PLASMA DIAGNOSTICS
PLASMA HEATING
QUARTZ
SANDIA NATIONAL LABORATORIES
SHOCK WAVES
TEMPERATURE MEASUREMENT
TIME DEPENDENCE
TIME RESOLUTION
US NATIONAL IGNITION FACILITY
VELOCITY