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particulate impacts on the uhcre cosmic ray experiment teflon covers: the esa programmeThe optical scanning equipment at the University of Kent Unit for Space Science consists of a 102.5 by 42.5 cm computer controlled motorized stage which has a reproduction accuracy of 30 microns over the entire area. This is used with an optical microscope connected to two charge coupled device video cameras which can be used to obtain stereo color images of any features found. A coordinate system can be defined on each cover by means of two or more reference marks which allow a feature to be located using different equipment such as a scanning electron microscope, providing two known marks can be found. By using back illumination, penetrating features can be found automatically, and their sizes, circularity, and positions logged for later revisiting either on the optical system or using a scanning electron microscope.
Document ID
19910015690
Document Type
Conference Paper
Authors
Mcdonnell, J. A. M.
(Kent Univ. Canterbury (England)., United States)
Paley, M. T.
(Kent Univ. Canterbury (England)., United States)
Stevenson, T. J.
(Kent Univ. Canterbury (England)., United States)
Thompson, A.
(Dublin Inst. for Advanced Studies (Ireland). ESTEC, Noordwijk (Netherlands)., United States)
Osullivan, D.
(Dublin Inst. for Advanced Studies (Ireland). ESTEC, Noordwijk, Netherlands)
Wenzel, K.-P.
(European Space Agency. European Space Research and Technology Center)
Schwehm, G. H.
(European Space Agency. European Space Research and Technology Center)
Date Acquired
September 6, 2013
Publication Date
June 1, 1991
Publication Information
Publication: NASA, Langley Research Center, First LDEF Post-Retrieval Symposium Abstracts
Subject Category
SPACE RADIATION
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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