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Removal of a glowing spot from an image tube using laser radiation.A troublesome problem with the Kron electronograph has been the presence of a white glowing spot on the glass wall of the tube adjacent to the focus electrode. The procedure followed to eliminate the spot was to operate in the dark and apply voltage only to the focused electrode. Ruby laser radiation was unfocused, and its position was shifted on the electrode between laser shots until an effect was observed. This technique for removing the glowing spot should be applicable to other electronic image tubes.
Document ID
19730032458
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Gurski, T. R. (Arizona, University Tucson, Ariz., United States)
Date Acquired
August 7, 2013
Publication Date
December 1, 1972
Publication Information
Publication: Review of Scientific Instruments
Volume: 43
Subject Category
INSTRUMENTATION AND PHOTOGRAPHY
Distribution Limits
Public
Copyright
Other