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Journal of Astronomical Telescopes, Instruments, and Systems

Postirradiation behavior of p-channel charge-coupled devices irradiated at 153 K
Author(s): Jason P. D. Gow; Daniel Wood; Neil J. Murray; David Burt; David J. Hall; Ben Dryer; Andrew D. Holland
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Paper Abstract

The displacement damage hardness that can be achieved using p-channel charge-coupled devices (CCD) was originally demonstrated in 1997, and since then a number of other studies have demonstrated an improved tolerance to radiation-induced charge transfer inefficiency when compared to n-channel CCDs. A number of recent studies have also shown that the temperature history of the device after the irradiation impacts the performance of the detector, linked to the mobility of defects at different temperatures. The initial results from an e2v technologies p-channel CCD204 irradiated at 153 K with 10-MeV equivalent proton fluences of 1.24×109 and 1.24×1011  protons cm−2 is described. The dark current, cosmetic quality, and the number of defects identified using trap pumping immediately were monitored after the irradiation for a period of 150 h with the device held at 153 K and then after different periods of time at room temperature. The device also exhibited a flatband voltage shift of around 30  mV/krad, determined by the reduction in full well capacity.

Paper Details

Date Published: 9 June 2016
PDF: 11 pages
J. Astron. Telesc. Instrum. Syst. 2(2) 026001 doi: 10.1117/1.JATIS.2.2.026001
Published in: Journal of Astronomical Telescopes, Instruments, and Systems Volume 2, Issue 2
Show Author Affiliations
Jason P. D. Gow, The Open Univ. (United Kingdom)
Daniel Wood, The Open Univ. (United Kingdom)
Neil J. Murray, The Open Univ. (United Kingdom)
David Burt, e2v technologies plc (United Kingdom)
David J. Hall, The Open Univ. (United Kingdom)
Ben Dryer, The Open Univ. (United Kingdom)
Andrew D. Holland, The Open Univ. (United Kingdom)

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