Investigating Artefacts Associated with α Particle Interactions in Charge Coupled Devices

Newton, Rosie and Scott, Mike J. and Dickinson, James W. and Phoenix, Ben and Parker, David J. and Wheldon, Carl and Pirrie, Stuart and Turner, Anthony and Kokalova, Tzany and Joyce, Malcolm J. (2018) Investigating Artefacts Associated with α Particle Interactions in Charge Coupled Devices. In: 2017 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2017 - Conference Proceedings. 2017 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2017 - Conference Proceedings . Institute of Electrical and Electronics Engineers Inc., USA. ISBN 9781538622827

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Abstract

The response of charge coupled devices (CCDs) to \alpha radiation has been investigated to assess the potential of using these devices to perform \alpha -particle detection and measurement. Previous research indicates that \alpha radiation leaves distinctive patterns in the images produced by CCDs when compared with other types of radiation. In this research, CCD responses to \alpha and \beta radiation have been compared to highlight these differences. The CCD used was a Sony ICX825AL interline transfer CCD with an 9.98 \times 6.71 mm imaging area consisting of 1392 \times 1040 pixels, each of size 6.45 \times 6.45 {\mu } m, covered with a thin aluminised Mylar film to stop exposure to light. Images have been taken of exposures to a ^{\mathbf {210}}Po source and horizontal streaks have been observed. It is thought the horizontal streaks are caused by the charge produced by the \alpha particles being read out over several cycles. The average length of the streaks was found to be 14.5 \pm 2.0 pixels. Future research will be done to further assess streaks produced by different energy \alpha particles to investigate the potential of using CCDs for spectroscopy, using the MC40 cyclotron at the University of Birmingham.

Item Type:
Contribution in Book/Report/Proceedings
Additional Information:
Funding Information: Manuscript received May 8, 2017. This work was supported by the Next Generation Nuclear Centre for Doctoral Training, the Engineering and Physical Sciences Research Council (EPSRC), and the Lloyds Register Foundation. M. J. Joyce acknowledges the support of the Royal Society as a recipient of a Wolfson Research Merit award. Publisher Copyright: © 2017 IEEE. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
167688
Deposited By:
Deposited On:
28 Oct 2022 13:00
Refereed?:
Yes
Published?:
Published
Last Modified:
21 Nov 2022 17:43