Variation of Thermal Emittance of Thermal Control Materials during Simultaneous Irradiation of Electrons and Ultraviolet Rays

Format:

Conference/Event

Author/Creator:

Koitabashi, Masayasu, author.

Conference Name:

Intersociety Conference on Environmental Systems (1987-07-13 : Seattle, Washington, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1987

Summary:

Variation of the total hemispherical emittance of spacecraft thermal control films resulting from irradiation is discussed. An electron energy of 30 KeV and a UV intensity of 3 sun equivalents are used. The emittance is measured in situ by the calorimetric method. The emittance of silver-Teflon film increases slightly with increasing the electron fluence. Its increment is less than 0.02 at a fluence of 1 1015 e/cm2, and very small for further irradiation. Addition of UV rays does not alter this situation. The emittance of aluminized Kapton film is not changed appreciably by irradiation

Notes:

Vendor supplied data

Publisher Number:

871485

Access Restriction:

Restricted for use by site license