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Proceedings Paper

Operation and performance of new NIR detectors from SELEX
Author(s): D. Atkinson; N. Bezawada; L. G. Hipwood; N. Shorrocks; H. Milne
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Paper Abstract

The European Space Agency (ESA) has funded SELEX Galileo, Southampton, UK to develop large format near infrared (NIR) detectors for its future space and ground based programmes. The UKATC has worked in collaboration with SELEX Galileo to test and characterise the new detectors produced during phase-1 of the development. In order to demonstrate the detector material performance, the HgCdTe (MCT) detector diodes (grown on GaAs substrate through MOVPE process in small 320×256, 24μm pixel format) are hybridised to the existing SELEX Galileo SWALLOW CMOS readout chip. The substrate removed and MCT thinned detector arrays were then tested and evaluated at the UKATC following screening tests at SELEX. This paper briefly describes the test setup, the operational aspects of the readout multiplexer and presents the performance parameters of the detector arrays including: conversion gain, detector dark current, read noise, linearity, quantum efficiency and persistence for various detector temperatures between 80K and 140K.

Paper Details

Date Published: 25 September 2012
PDF: 11 pages
Proc. SPIE 8453, High Energy, Optical, and Infrared Detectors for Astronomy V, 84530U (25 September 2012); doi: 10.1117/12.926024
Show Author Affiliations
D. Atkinson, UK Astronomy Technology Ctr. (United Kingdom)
N. Bezawada, UK Astronomy Technology Ctr. (United Kingdom)
L. G. Hipwood, SELEX Galileo Infrared Ltd. (United Kingdom)
N. Shorrocks, SELEX Galileo Infrared Ltd. (United Kingdom)
H. Milne, SELEX Galileo Infrared Ltd. (United Kingdom)


Published in SPIE Proceedings Vol. 8453:
High Energy, Optical, and Infrared Detectors for Astronomy V
Andrew D. Holland; James W. Beletic, Editor(s)

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