Investigating artefacts associated with α particle interactions in charge coupled devices

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Authors

  • Rosie Newton
  • Mike J. Scott
  • James W. Dickinson
  • David J. Parker
  • Malcolm J. Joyce

Colleges, School and Institutes

External organisations

  • Lancaster University
  • BIC Technology Ltd.

Abstract

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

Details

Original languageEnglish
Title of host publication2017 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2017 - Conference Proceedings
Publication statusPublished - 12 Nov 2018
Event2017 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2017 - Atlanta, United States
Duration: 21 Oct 201728 Oct 2017

Publication series

NameIEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC)
Volume2017
ISSN (Print)1082-3654
ISSN (Electronic)2577-0829

Conference

Conference2017 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2017
Country/TerritoryUnited States
CityAtlanta
Period21/10/1728/10/17

Keywords

  • Charge coupled devices, Spectroscopy, Cyclotrons, CCD image sensors, Alpha particles, Atmospheric measurements