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 D2/H2 (above ∼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.
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May 1986
Research Article|
May 01 1986
Development of a coating technique for inertial confinement fusion plastic targets
Uichi Kubo;
Uichi Kubo
Department of Electrical Engineering, Faculty of Science and Technology, Kinki University, Higashiosaka, Osaka, Japan
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Hiroshi Tsubakihara
Hiroshi Tsubakihara
Department of Electrical Engineering, Faculty of Science and Technology, Kinki University, Higashiosaka, Osaka, Japan
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J. Vac. Sci. Technol. A 4, 1134–1137 (1986)
Article history
Received:
October 21 1985
Accepted:
January 23 1986
Citation
Uichi Kubo, Hiroshi Tsubakihara; Development of a coating technique for inertial confinement fusion plastic targets. J. Vac. Sci. Technol. A 1 May 1986; 4 (3): 1134–1137. https://doi.org/10.1116/1.573424
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