Spatial resolution of the Medipix2 X-ray imaging detector system

D.W. Davidson, L Tlustos, K Mathieson, V O'Shea, K.M. Smith, M Rahman

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

Abstract

The charge sharing present in a 55 micrometer square pixel matrix of 300 micrometer thick silicon is examined. This is achieved using a commercial simulation package to investigate the diffusion effects on the charge cloud of created electrons and holes. The total fraction of charge shared is found to be 20.8%, but this can be reduced by the addition of a minimum threshold level of detection. The optimum level giving all of the signal but with the minimum of noise is found to leave 10.4% charge shared on average.
Original languageEnglish
Title of host publication2003 IEEE Nuclear Science Symposium Conference Record
EditorsS.D. Metzler
PublisherIEEE
Pages2727-2729
Number of pages3
Volume3
ISBN (Print)0-7803-8257-9
DOIs
Publication statusPublished - Oct 2004

Publication series

NameIEEE NUCLEAR SCIENCE SYMPOSIUM - CONFERENCE RECORD

Keywords

  • spatial resolution
  • imaging detector system
  • imaging detector
  • X-ray imaging
  • poisson equations

Cite this

Davidson, D. W., Tlustos, L., Mathieson, K., O'Shea, V., Smith, K. M., & Rahman, M. (2004). Spatial resolution of the Medipix2 X-ray imaging detector system. In S. D. Metzler (Ed.), 2003 IEEE Nuclear Science Symposium Conference Record (Vol. 3, pp. 2727-2729). (IEEE NUCLEAR SCIENCE SYMPOSIUM - CONFERENCE RECORD). IEEE. https://doi.org/10.1109/NSSMIC.2003.1352450