Computer Science
Scientific paper
Dec 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989spie.1158..244l&link_type=abstract
IN: Ultraviolet technology III; Proceedings of the Meeting, San Diego, CA, Aug. 10, 11, 1989 (A90-43258 19-35). Bellingham, WA,
Computer Science
Focusing, Image Intensifiers, Image Rotation, Image Tubes, Microchannel Plates, Charge Coupled Devices, Magnetic Fields, Modulation Transfer Function, Spaceborne Photography, Ultraviolet Photography
Scientific paper
In addition to yielding higher spatial resolution than the proximity focusing commonly employed in most microchannel plate (MCP) intensifier tubes, the magnetic-field focusing of electrons presently discussed allows the rotation of an optical image between the photocathode and the anode. A 40 mm-diameter MCP with 98 mm spacing between the MCP and the photocathode has been evaluated, with a view to comparing its spatial frequency response with that of a proximity-focused MCP image tube. Attention is given to the control of image rotation as a function of magnetic field strength values at the MCP and photocathode.
Cope A. D.
Lowrance John L.
Stergis C. R.
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