Accession Number : ADA306158

Title :   Transmission Effects on Plastic Films Irradiated with Ultraviolet Light, Electrons, and Protons.

Descriptive Note : Technical memo.,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CEN TER

Personal Author(s) : Anagnostou, Evelyn ; Spakowski, Adolph E.

PDF Url : ADA306158

Report Date : OCT 1969

Pagination or Media Count : 13

Abstract : Several plastic films, suitable as covers for thin-film CdS solar cells, were irradiated by ultraviolet light in vacuum. The films were bombarded by 1-MeV electrons at fluences up to 1 x 10 to the 17th power electrons/cm2, and one of the films was bombarded by 800-keV protons at fluences up to 1 x 10 to the 14th power protons/cm2. The effect of these environments on the transmission of the plastics in the wavelength range 0.350 to 1.200 microns was measured. The most promising cover material was Teflon-FEP. (AN)

Descriptors :   *VACUUM ULTRAVIOLET RADIATION, *POLYIMIDE PLASTICS, *TETRAFLUOROETHYLENE RESINS, DEGRADATION, THIN FILMS, COPOLYMERS, PROTONS, TRANSMITTANCE, POLYPROPYLENE, SOLAR CELLS, SOLAR ENERGY, COVERINGS, SOLAR RADIATION, ELECTRON IRRADIATION, POLYETHYLENE PLASTICS, PLASTIC COATINGS, AZOLES, PROTON BOMBARDMENT, CADMIUM SULFIDES, POLYSULFONES.

Subject Categories : Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE