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Responsivity mapping techniques for the non-positional CCD: the swept charge device CCD236

Smith, P.; Murray, N.; MacCormick, C.; Gow, J.; Weatherill, D.; Allanwood, E.; Pool, P. and Holland, A. (2013). Responsivity mapping techniques for the non-positional CCD: the swept charge device CCD236. In: UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XVIII, SPIE, article no. 8859-21.

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DOI (Digital Object Identifier) Link: https://doi.org/10.1117/12.2028865
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Abstract

The e2v CCD236 is a swept charge device (SCD) designed as a soft X-ray detector for spectroscopy in the range 0.8 keV to 10 keV [1]. It benefits from improvements in design over the previous generation of SCD (the e2v CCD54) [2] to allow for increased detector area, a reduction in split X-ray events and improvements to radiation hardness [3]. To enable the suppression of surface dark current the device is clocked continuously, therefore there is no positional information making responsivity variations difficult to measure. This paper describes investigated techniques to achieve a responsivity map across the device using masking and XRF, and spot illumination from an organic light-emitting diode (OLED). The results of this technique should allow a deeper understanding of the device sensitivity and allow better data interpretation in SCD applications.

Item Type: Conference or Workshop Item
Copyright Holders: 2013 Society of Photo-Optical Instrumentation Engineers
ISBN: 0-8194-9709-6, 978-0-8194-9709-3
ISSN: 0277-786X
Extra Information: UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XVIII,
edited by Oswald H. Siegmund,
Proceedings of SPIE Vol. 8859
Keywords: swept charge device (SCD); CCD236; soft X-ray detector; X-ray fluorescence (XRF); responsivity mapping; OLED
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: 39057
Depositing User: Jason Gow
Date Deposited: 25 Nov 2013 09:46
Last Modified: 30 Nov 2016 23:12
URI: http://oro.open.ac.uk/id/eprint/39057
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