Interferometric measurements of multilayer and double-shell inertial fusion targets

Journal Article · Wed Apr 01 04:00:00 EST 1981 · J. Vac. Sci. Technol.; (United States)

DOI:https://doi.org/10.1116/1.570869· OSTI ID:6496930

Weinstein, B W; Weir, J T; Willenborg, D L

Optical interference microscopy plays an important role in the measurement of targets for inertial confinement fusion experiments. We describe how these techniques are applied to the measurement of thickness and refractive index of multilayer films on both flat substrates and microsphere targets. We also discuss procedures for manipulating and examining microsphere targets to measure surface defects and wall thickness variations anywhere on the target. Finally, we describe the use of optical interferometry to measure the individual components and final assembled structure of double-shell targets. The accuracy of these measurements is from 0.03 to 0.05 mm, depending on the specific application.

• Research Organization: Lawrence Livermore National Laboratory, P. O. Box 5508, Livermore, California 94550
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6496930
• Journal Information: J. Vac. Sci. Technol.; (United States), Journal Name: J. Vac. Sci. Technol.; (United States) Vol. 18:3; ISSN JVSTA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700208* -- Fusion Power Plant Technology-- Inertial Confinement Technology
ACCURACY
CONFINEMENT
DIMENSIONS
FILMS
INERTIAL CONFINEMENT
INTERFEROMETRY
LAYERS
MICROSCOPY
MICROSPHERES
OPTICAL MICROSCOPY
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
PLASMA CONFINEMENT
REFRACTIVITY
SHELLS
TARGETS
THICKNESS