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Proceedings Paper

A "Discrete Attenuation Of Radiance" Thermography System (DART)
Author(s): D. Mansfield
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Paper Abstract

The DART system is a thermography system based on the UK Class II Thermal Imaging Common Modules (TICM II). It uses a turret containing 4 filters as the means for selecting 4 different target temperature ranges. The physics of such a system is discussed paying particular attention to the CMT SPRITE detector. In particular, the effect of the total photon flux incident on the SPRITE regarding the detector responsivity is discussed,together with the spectral responsivity. Finally, the, consequences, of this detector behaviour are shown in terms of (i) the relative NETD between a DART' system and an alternative 'switched-gain head-amplifier' based system, and (ii) a discussion of the sensitivities of these two systems.

Paper Details

Date Published: 11 October 1988
PDF: 7 pages
Proc. SPIE 0916, Infrared Systems--Design and Testing, (11 October 1988); doi: 10.1117/12.945563
Show Author Affiliations
D. Mansfield, Rank Taylor Hobson Ltd (UK)

Published in SPIE Proceedings Vol. 0916:
Infrared Systems--Design and Testing
Peter R. Hall; John S. Seeley, Editor(s)

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