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Proton radiation damage assessment of a CCD for use in a Ultraviolet and Visible Spectrometer

Gow, J.P.D.; Mason, J.; Leese, M.; Hathi, B. and Patel, M. (2017). Proton radiation damage assessment of a CCD for use in a Ultraviolet and Visible Spectrometer. Journal of Instrumentation, 12 P01007.

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DOI (Digital Object Identifier) Link: https://doi.org/10.1088/1748-0221/12/01/P01007
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Abstract

This paper describes the radiation environment and radiation damage analysis performed for the Nadir and Occultation for MArs Discovery (NOMAD) Ultraviolet and Visible Spectrometer (UVIS) channel launched onboard the ExoMars Trace Gas Orbiter (TGO) in 2016. The aim of the instrument is to map the temporal and spatial variation of trace gases such as ozone and dust/cloud aerosols in the atmosphere of Mars. The instrument consists of a set of two miniature telescope viewing optics which allow for selective input onto the optical bench, where an e2v technologies CCD30-11 will be used as the detector. A Geometry Description Markup Language model of the spacecraft and instrument box was created and through the use of ESA's SPace ENVironment Information System (SPENVIS) an estimate of the 10 MeV equivalent proton fluence was made at a number of radiation sensitive regions within NOMAD, including that of the CCD30-11 which is the focus of this paper. The end of life 10 MeV equivalent proton fluence at the charge coupled device was estimated to be 4.7 × 109 protons.cm−2; three devices were irradiated at different levels up a 10 MeV equivalent fluence of 9.4 × 109 protons.cm−2. The dark current, charge transfer inefficiency, charge storage, and cosmetic quality of the devices was investigated pre- and post-irradiation, determining that the devices will continue to provide excellent science throughout the mission.

Item Type: Journal Item
Copyright Holders: 2017 IOP Publishing Ltd and Sissa Medialab srl
ISSN: 1748-0221
Project Funding Details:
Funded Project NameProject IDFunding Body
NOMAD Post-Launch SupportST/P000886/1UKSA UK Space Agency
Modelling and retrieval of martian dust, ice and ozone from ExoMars NOMAD dataST/P001262/1UKSA UK Space Agency
Keywords: Photon detectors for UV, visible and IR photons (solid-state) (PIN diodes, APDs, Si-PMTs, G-APDs, CCDs, EBCCDs, EMCCDs etc); Radiation damage to detector materials (solid state)
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 48216
Depositing User: Manish Patel
Date Deposited: 18 Jan 2017 11:26
Last Modified: 15 May 2017 17:19
URI: http://oro.open.ac.uk/id/eprint/48216
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