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Proton radiation damage study of the next generation of swept charge devices

Gow, J.; Holland, A. D. and Pool, P. (2009). Proton radiation damage study of the next generation of swept charge devices. In: Proceedings of SPIE: UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XVI, 3 August 2009, San Diego, USA.

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DOI (Digital Object Identifier) Link: http://dx.doi.org/10.1117/12.826856
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Abstract

The first generation of Swept Charge Device (SCD) the e2v technologies plc CCD54 was used in the Demonstration of a Compact Imaging X-ray Spectrometer (D-CIXS) launched in 2003 and again in the Chandrayaan-1 X-ray Spectrometer (C1XS) instrument currently in orbit around the Moon. The main source of decreased energy resolution in both cases is proton damage, from trapped and solar protons respectively. This paper presents the results from an experimental study to evaluate the performance of the next generation of SCD the CCD234 and CCD236 irradiated with a 10 MeV equivalent proton fluence of 3.0?108 protons.cm-2, demonstrating the factor of two increase in radiation hardness when compared to the CCD54. In particular the increased dark current, decrease in energy resolution and the degradation of charge transfer efficiency (CTE) are described.

Item Type: Conference Item
Copyright Holders: SPIE - The International Society for Optical Engineering
Keywords: swept charge device; SCD; proton radiation damage; charge transfer efficiency; displacement damage hardened;
Academic Unit/Department: Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 19851
Depositing User: Jason Gow
Date Deposited: 03 Feb 2010 14:14
Last Modified: 14 Nov 2012 23:58
URI: http://oro.open.ac.uk/id/eprint/19851
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