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Proceedings Paper

Measurements Of Off-Axis Rejection In Imaging Systems
Author(s): Ron D. Abbott
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Paper Abstract

One of the basic concerns of Exoatmospneric R.diometry is the spatial rejection of naturally present background radiation while viewing a low intensity source. This paper presents the technique for assessing this sensor quality as well as the associated problems. The basic measurement technique utilizes a CO2 laser operating at 10.6 micro-meters. The beam is expanded and recollimated to a 13 inch diameter. The focal plane sampling system utilizes a mercury cadmium telluride detector cooled to 77 degrees kelvin. Detection data is sam led with a lock-in voltmeter synchronized to the chopped laser beam. Results from two sensors are presented and demonstrate a m easurement capability of 12 orders of magnitude dynamic range.

Paper Details

Date Published: 2 June 1978
PDF: 7 pages
Proc. SPIE 0133, Optics in Missile Engineering, (2 June 1978); doi: 10.1117/12.956081
Show Author Affiliations
Ron D. Abbott, General Dynamics/Pomona Division (United States)


Published in SPIE Proceedings Vol. 0133:
Optics in Missile Engineering
Stephen A. Benton; Geoffery Knight, Editor(s)

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