Computer Science – Performance
Scientific paper
Jan 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986spie..627..206f&link_type=abstract
IN: Instrumentation in astronomy VI; Proceedings of the Meeting, Tucson, AZ, Mar. 4-8, 1986. Part 1 (A87-36376 15-35). Bellingha
Computer Science
Performance
19
Charge Coupled Devices, Image Processing, Photon Density, Quantum Counters, Radiation Counters, Efficiency, High Resolution, Image Intensifiers, Lenses, Performance Tests
Scientific paper
A new CCD-based image photon counting system (IPCS) has been developed. This new IPCS consists of a 4-stage EMI intensifier coupled, via a high speed, custom-built lens, to an RCA thinned CCD. Photon events detected by the CCD are then centred, using "interpolative centroiding" techniques, to an accuracy of 1/8th of a CCD pixel thereby attaining high resolution. This paper describes the new IPCS and presents details of laboratory performance tests. Such tests have demonstrated high resolution and good detection efficiency in counting incoming photons. Also included are details on future developments of this system, including the possible use of a MCP intensifier and fibre optic coupling, as well as details of expected astronomical performance.
Bone David A.
Fordham John L. A.
Jorden Anthony R.
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