Accession Number:

AD0270021

Title:

ULTRAVIOLET EFFECTS ON SPACE VEHICLE OPERATION IN ULTRAHIGH VACUUM ENVIRONMENT, SEPTEMBER 22, 1960 TO MARCH 21, 1961

Descriptive Note:

Corporate Author:

NATIONAL RESEARCH CORP CAMBRIDGE MASS

Personal Author(s):

• BEECHER,N.
• VERSLUYS,W.
• ACCARDO,C.

Report Date:

1961-01-01

Pagination or Media Count:

1.0

Abstract:

The effects of solar extreme UV radiation 1100 to 2000 Angstroms is being studied by 2 methods 1 an experimental study to find gross effects on polymers, paints, and metallicALLOYS USED IN SPACE VEHICLE OR SPACE SIMULATOR CONSTRUCTION 2 a theoretical study to find the significance of photoemission and UV-induced outgassing on the performance of the space vehicle and the space simulator. A UV source was developed giving an effective output of 3 x 10 to the 15th power photonssec in the range from 1100 to 1850 Angstroms with an ultrahigh vacuum system capable of operating in the low 10 to the -9th Torr mm Hg range. Irradiation effects including outgassing of plastic samples of Mylar, Teflon, and Plexiglas are given.

Descriptors:

• *PLASTICS
• *SPACE ENVIRONMENTS
• *ULTRAVIOLET RADIATION
• ACRYLIC RESINS
• ELECTRICAL PROPERTIES
• ETHYLENES
• FLUORIDES
• GLYCOLS
• MATERIALS
• PHOTOELECTRIC EFFECT
• POLYMERS
• RADIATION EFFECTS
• SIMULATION
• SPACECRAFT
• TEST EQUIPMENT
• TEST FACILITIES
• TEST METHODS
• THEORY
• VACUUM APPARATUS

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE