MIC photon counting detector

John L. A. Fordham; J. G. Bellis; David A. Bone; Timothy J. Norton

doi:10.1117/12.44267

1 June 1991 MIC photon counting detector

John L. A. Fordham, J. G. Bellis, David A. Bone, Timothy J. Norton

Proceedings Volume 1449, Electron Image Tubes and Image Intensifiers II; (1991) https://doi.org/10.1117/12.44267
Event: Electronic Imaging '91, 1991, San Jose, CA, United States

Abstract

The MIC photon counting detector, a very high resolution, large format system that has been developed for astronomical applications and has been proven on the major UK associated telescopes, is described. Additionally, though, this detector does have a number of applications in other fields such as bio-medical and x-ray imaging. The detector itself consists of a specially designed 40 mm diameter micro-channel plate intensifier fiber optically coupled to a CCD read-out system. Data is then centroided to 1/8th of a CCD pixel in both X and Y to provide high resolution. Accumulated data is stored in a micro-processor system with on-line display and reduction facilities. The maximum format available with the detector is 3072 X 2304 pixels, where each pixel is 10.6 micrometers square. The resolution is 27 micrometers FWHM when averaged over the field. Dependent upon the application, a dynamic range as high as 5 X 106 is achievable with this detector. The time resolution of the detector is in the range 1 ms to 12 ms. A very large format version of this detector is being designed that utilizes a 75 mm intensifier and has a maximum format of 6144 X 4608 pixels. It is expected that this detector will have the same performance figures as the 40 mm system.

Citation Download Citation

John L. A. Fordham, J. G. Bellis, David A. Bone, and Timothy J. Norton "MIC photon counting detector", Proc. SPIE 1449, Electron Image Tubes and Image Intensifiers II, (1 June 1991); https://doi.org/10.1117/12.44267

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