Experimental Astronomy

, Volume 21, Issue 1, pp 13–22

High speed photon-counting imager using a position sensitive diode

Original Article

DOI: 10.1007/s10686-006-9055-0

Cite this article as:
Ryan, O., Redfern, M. & Shearer, A. Exp Astron (2006) 21: 13. doi:10.1007/s10686-006-9055-0


A new use for a 2-dimensional position sensitive diode (PSD) is described. A duolateral PSD was used with a microchannel plate image intensifier as a proof-of-concept photon counting (event driven) imager for astronomical imaging and photometry. This produced an imager capable of counting 25–30 kcps over the astronomical bands B, V & R, with an overall efficiency of ∼19%.


DetectorsPosition sensitive diodeMicrochannel plate intensifierAvalanche photodiodeHigh time resolutionImaging

Copyright information

© Springer Science+Business Media B.V. 2006

Authors and Affiliations

  1. 1.Department of PhysicsNational University of IrelandGalwayIreland
  2. 2.Computational Astrophysics Group, Department of Information TechnologyNational University of IrelandGalwayIreland