Copper coated laser fusion targets using molecular beam levitation

Journal Article · Thu Apr 01 00:00:00 EST 1982 · J. Vac. Sci. Technol.; (United States)

DOI:https://doi.org/10.1116/1.571596· OSTI ID:5648432

Rocke, M J

A series of diagnostic experiments at the Shiva laser fusion facility required targets of glass microspheres coated with 1.5--3.0 ..mu..m of copper. Previous batch coating efforts using vibration techniques gave poor results due to microsphere sticking and vacuum welding. Molecular beam levitation (MBL) represented a noncontact method to produce a sputtered copper coating on a single glass microsphere. The coating specifications that were achieved resulted in a copper layer up to 3 ..mu..m thick with the allowance of a maximum variation of 10 nm in surface finish and thickness. These techniques developed with the MBL may be applied to sputter coat many soft metals for fusion target applications.

• Research Organization: Lawrence Livermore National Laboratory, P. O. Box 5508, Livermore, California 94550
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5648432
• Journal Information: J. Vac. Sci. Technol.; (United States), Vol. 20:4
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COPPER
SPUTTERING
SURFACE COATING
GLASS
COATINGS
MICROSPHERES
ARGON
GRAIN GROWTH
INERTIAL CONFINEMENT
LASER TARGETS
MOLECULAR BEAMS
THICKNESS
BEAMS
CONFINEMENT
DEPOSITION
DIMENSIONS
ELEMENTS
FLUIDS
GASES
METALS
NONMETALS
PLASMA CONFINEMENT
RARE GASES
TARGETS
TRANSITION ELEMENTS
700208* - Fusion Power Plant Technology- Inertial Confinement Technology
700205 - Fusion Power Plant Technology- Fuel
Heating
& Injection Systems