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Modelling instrument background for CCD x-ray spectrometers in space

Hall, David; Holland, Andrew and Turner, Martin (2007). Modelling instrument background for CCD x-ray spectrometers in space. Proceedings of SPIE, 6686

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URL: http://spie.org/x1848.xml
DOI (Digital Object Identifier) Link: http://dx.doi.org/10.1117/12.732015
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Abstract

The European Space Agency (ESA) X-ray Evolving Universe Spectroscopy (XEUS) mission is designed as a follow-on to the ESA X-ray Multi Mirror (XMM-Newton) mission and may contain charge-coupled device (CCD) based instrumentation. Low instrument background is essential for the mission to maximise sensitivity. Results from XMM-Newton and the Japanese Space Agency Suzaku mission show that both the detector design and the orbit (LEO vs. HEO) have major impacts on the instrument background. This gives implications for the optimal instrument configuration for XEUS and other future missions. Here we use a Monte Carlo simulation technique, utilising the Geant4 toolkit, to model the instrument background for CCDs in-orbit. The model will be initially verified by simulating the background from the XMM-Newton and Suzaku missions and comparing this to real data obtained in-orbit. The simulated data will then be analysed to gain a better understanding of the cause of the background. Suggestions for minimizing the instrument background in future missions based on the results found here are included.

Item Type: Journal Article
Copyright Holders: 2007 SPIE
ISSN: 1996-756X
Academic Unit/Department: Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
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Item ID: 24042
Depositing User: Jason Gow
Date Deposited: 01 Mar 2011 09:38
Last Modified: 26 Nov 2013 12:24
URI: http://oro.open.ac.uk/id/eprint/24042
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