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13 October 1986 Imaging By Time-Tagging Photons With The Multi-Anode Microchannel Array Detector System
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We report on the capability and initial use of the MAMA detector in the time-tag mode. The detector hardware currently in use consists of a visible-light detector tube with a semi-transparent photocathode proximity-focused to a high-gain curved-channel MCP. The photoevents are detected by a (256 x 1024)-pixel coincidence-anode array with pixel dimensions of 25 x 25 microns 2 connected to charge-sensitive amplifiers and event-detection circuitry. In the time-tag mode, the detector delivers the pixel address and the time of arrival for each detected photon to an accuracy of 10 pS. Detector count rates of >2 x 105 counts s are possible in the time-tag mode, but the maximum count rate is limited at this time by the speed of our data acquisition hardware. The MAMA detector in the time-tag mode is currently being evaluated in programs of astrometry and speckle imaging.
© (1986) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. G. Timothy and J. S. Morgan "Imaging By Time-Tagging Photons With The Multi-Anode Microchannel Array Detector System", Proc. SPIE 0627, Instrumentation in Astronomy VI, (13 October 1986);


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