Development of a coating technique for inertial confinement fusion plastic targets

Journal Article · Thu May 01 04:00:00 EDT 1986 · J. Vac. Sci. Technol., A; (United States)

DOI:https://doi.org/10.1116/1.573424· OSTI ID:5607808

Kubo, U; Tsubakihara, H

Deuterated polystyrene as a target material offers several advantages over other polymers because of the following: (1) it is chemically and physically stable at ordinary conditions, (2) it can be easily formed into spherical shells, and (3) it has a very high fraction of D/sub 2//H/sub 2/ (above approx.99%). As in our previous studies, the fabrication method was basically a utilization of the emulsion technique. This method is well suited to mass-producing the polymer targets without microprocessing techniques. We have developed a fabrication method for single shell targets and an extension of this technique also enables us to fabricate double shell targets. This new method is faster and less labor intensive than previous techniques. The development of ICF experiments requires multilayer structure targets; we have developed, moreover, a new fabrication technique called the multicoating method. The polymer coating can be fabricated by the application of an emulsion technique. On the other hand, with metal coating, a nonelectroplating method was used, and nickel was employed as the coating metal. The thickness of the polymer coating layer can be controlled with the rotational speed of a stirrer in the emulsion. In the case of nickel coating, it is achieved by controlling the plating bath temperature and immersion time during the plating process. The experiment resulted in the development of a new technique for the fabrication of multilayer targets and low density, thick polymer-layer-coated targets.

• Research Organization: Department of Electrical Engineering, Faculty of Science and Technology, Kinki University, Higashiosaka, Osaka, Japan
• OSTI ID: 5607808
• Journal Information: J. Vac. Sci. Technol., A; (United States), Journal Name: J. Vac. Sci. Technol., A; (United States) Vol. 4:3; ISSN JVTAD
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700208* -- Fusion Power Plant Technology-- Inertial Confinement Technology
COATINGS
COLLOIDS
CONFINEMENT
DEPOSITION
DIMENSIONS
DISPERSIONS
ELEMENTS
FABRICATION
GELATIN
INERTIAL CONFINEMENT
LASER TARGETS
LAYERS
MATERIALS
METALS
MICROSPHERES
NICKEL
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASMA CONFINEMENT
PLASTICS
POLYMERS
POLYOLEFINS
POLYSTYRENE
POLYVINYLS
PROTEINS
SHELLS
SURFACE COATING
SYNTHETIC MATERIALS
TARGETS
THICKNESS
TRANSITION ELEMENTS