Holographic interferometry of laser fusion targets at 2660 A

Conference · Wed Sep 01 04:00:00 EDT 1976

OSTI ID:7318869

Coleman, L W; Attwood, D T; Sweeney, D W

Holographic interferometry at 2660 A has been used to study plasma blowoff from 80 micron diameter laser fusion targets. Scale lengths of 11 microns, measured with 1 micron spatial resolution, are recorded at 7 x 10/sup 20/ e/cc after 800 psec of hydrodynamic expansion. These results suggest much steeper density gradients at peak irradiation intensity. The observed fringe pattern is strongly dependent on interferometric imaging, as expected for strong transverse gradient refractive media. Significant interpretive errors, which might occur in a single image classical interferometer, are avoided with this holographic technique.

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7318869
• Report Number(s): UCRL-78429; CONF-761108-12
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
700208 -- Fusion Power Plant Technology-- Inertial Confinement Technology
EXPANSION
FUELS
HOLOGRAPHY
IMPLOSIONS
INTERFEROMETRY
LASER FUSION REACTORS
LASER IMPLOSIONS
LASER-PRODUCED PLASMA
PLASMA
PLASMA DIAGNOSTICS
PLASMA EXPANSION
REFRACTION
THERMONUCLEAR FUELS
THERMONUCLEAR REACTORS