Improved optical diagnostics for the NOVA laser

Conference · Fri Jul 01 04:00:00 EDT 1994

OSTI ID:10164174

Fernandez, J C; Berggren, R R; Bradley, K S; Hsing, W W; Gomez, C C; Cobble, J A

This paper describes three diagnostics for detecting optical scatter from NOVA laser targets. Detecting such scatter can help not only the authors` understanding of plasma instabilities in laser plasmas, but also their efforts at plasma characterization, particularly hohlraum plasmas. These diagnostics are: the Full Aperture Backscatter Station (FABS), presently being built; the Oblique Scatter Array (OSA), just starting operation; and the Axial Imager, also just starting operation. FABS will allow imaging at high resolution of Brillouin and Raman backscatter. The OSA allows a quantitative measurement of Brillouin and Raman scatter in many directions (assuming the target allows the scatter to escape). The axial imager allows high-resolution imaging of Brillouin, Two-Plasmon Decay and Raman scatter emitted towards the East direction, which is along the symmetry axis of the NOVA laser beams.

• Research Organization: Los Alamos National Lab., NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 10164174
• Report Number(s): LA-UR--94-1701; CONF-940552--14; ON: DE94014811
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700320
700411
BRILLOUIN EFFECT
INERTIAL CONFINEMENT DEVICES
LASER TARGETS
LASER-PRODUCED PLASMA
NEODYMIUM LASERS
NOVA FACILITY
PLASMA DIAGNOSTIC TECHNIQUES AND INSTRUMENTATION
PLASMA DIAGNOSTICS
PLASMA INSTABILITY
RAMAN EFFECT
SCATTERING
VISIBLE RADIATION