High speed photon-counting imager using a position sensitive diode
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- Ryan, O., Redfern, M. & Shearer, A. Exp Astron (2006) 21: 13. doi:10.1007/s10686-006-9055-0
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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%.