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Proceedings Paper

Intensified UV Imager For Space Applications
Author(s): D. E. Fort; R. F. Cohn; K. R. Fowler; T. J. Harris; E. C. King; W. Schneider
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Paper Abstract

An intensified UV imaging system covering the wavelength range 120 to 330 nm has been built and tested for space flight. A six-position fil-ter wheel divides the range into four narrow bands of interest, provides an ND1 filter for increased dynamic range, and provides a calcium fluo-ride window for maximum sensitivity and good rejection of Lyman al-pha. The optical path includes a reflective telescope, a cesium telluride image intensifier, a fiber-optic reducer, and a 380 by 488 pixel CCD sen-sor. The overall field of view is approximately 2.4° x 1.8°, with an angular spatial resolution exceeding 125 μrad. The system includes digitiz-ing electronics, associated memory, and a microprocessor-controlled AGC system. The maximum sensitivity of the system to a point source ex-ceeds 20 photons/cm2-s in the photon counting mode; with the use of the AGC and ND1 filter, the dynamic range exceeds 107.

Paper Details

Date Published: 16 August 1988
PDF: 6 pages
Proc. SPIE 0932, Ultraviolet Technology II, (16 August 1988); doi: 10.1117/12.946894
Show Author Affiliations
D. E. Fort, The Johns Hopkins University Applied Physics Laboratory (United States)
R. F. Cohn, The Johns Hopkins University Applied Physics Laboratory (United States)
K. R. Fowler, The Johns Hopkins University Applied Physics Laboratory (United States)
T. J. Harris, The Johns Hopkins University Applied Physics Laboratory (United States)
E. C. King, The Johns Hopkins University Applied Physics Laboratory (United States)
W. Schneider, The Johns Hopkins University Applied Physics Laboratory (United States)


Published in SPIE Proceedings Vol. 0932:
Ultraviolet Technology II
Robert E. Huffman, Editor(s)

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