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Optimisation of SPRITE integration and readout lengths

Optimisation of SPRITE integration and readout lengths
Optimisation of SPRITE integration and readout lengths
The SPRITE (Signal Processing in the Element) detector comprises a long thin filament of mercury cadmium telluride. The filament is divided into two sections, the integration and readout regions. Ambipolar drift speed in the filament is matched to the scanning speed in a thermal imager, and the device performs in the element the functions normally achieved with time-delay-and-integrate electronics. We consider the optimum choice of integration section length having regard to the trade-off between high and low spatial frequency performance. The readout section length can also be optimized, in this case the noise performance of the detector preamplifier is an important consideration, because both noise and responsivity of the detector fall at high frequencies.
9780819415981
2274
126-135
Society of Photo-Optical Instrumentation Engineers
Rutt, Harvey N.
e09fa327-0c01-467a-9898-4e7f0cd715fc
Rutt, Harvey N.
e09fa327-0c01-467a-9898-4e7f0cd715fc

Rutt, Harvey N. (1994) Optimisation of SPRITE integration and readout lengths. In, Infrared Detectors: State of the Art II. (proceedings of SPIE, 2274) SPIE International Symposium on Optics Imaging and Instrumentations (06/10/94) Bellingham, US. Society of Photo-Optical Instrumentation Engineers, pp. 126-135. (doi:10.1117/12.189238).

Record type: Book Section

Abstract

The SPRITE (Signal Processing in the Element) detector comprises a long thin filament of mercury cadmium telluride. The filament is divided into two sections, the integration and readout regions. Ambipolar drift speed in the filament is matched to the scanning speed in a thermal imager, and the device performs in the element the functions normally achieved with time-delay-and-integrate electronics. We consider the optimum choice of integration section length having regard to the trade-off between high and low spatial frequency performance. The readout section length can also be optimized, in this case the noise performance of the detector preamplifier is an important consideration, because both noise and responsivity of the detector fall at high frequencies.

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More information

Published date: 7 October 1994
Venue - Dates: SPIE International Symposium on Optics Imaging and Instrumentations, San Diego, United States, 1994-10-06

Identifiers

Local EPrints ID: 77087
URI: http://eprints.soton.ac.uk/id/eprint/77087
ISBN: 9780819415981
PURE UUID: de3818ea-1304-45f8-892a-0b0d3ce110e8

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Date deposited: 11 Mar 2010
Last modified: 10 Dec 2021 17:10

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Author: Harvey N. Rutt

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