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Experimental validation of a numerical model predicting the charging characteristics of Teflon and Kapton under electron beam irradiationThe effect differential charging of spacecraft thermal control surfaces is assessed by studying the dynamics of the charging process. A program to experimentally validate a computer model of the charging process was established. Time resolved measurements of the surface potential were obtained for samples of Kapton and Teflon irradiated with a monoenergetic electron beam. Results indicate that the computer model and experimental measurements agree well and that for Teflon, secondary emission is the governing factor. Experimental data indicate that bulk conductivities play a significant role in the charging of Kapton.
Document ID
19820006345
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hazelton, R. C.
(Inland Research and Development Center Concord, MA, United States)
Yadlowsky, E. J.
(Inland Research and Development Center)
Churchill, R. J.
(Inland Research and Development Center)
Parker, L. W.
(Parker (Lee W.), Inc.)
Sellers, B.
(Panametrics, Inc.)
Date Acquired
August 10, 2013
Publication Date
October 1, 1981
Publication Information
Publication: NASA. Lewis Research Center Spacecraft Charging Technol., 1980
Subject Category
Spacecraft Design, Testing And Performance
Accession Number
82N14218
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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