The Photicon

Details The Photicon The Photicon

May 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977rsci...48..550k&link_type=abstract

Review of Scientific Instruments, vol. 48, May 1977, p. 550-553.

Physics

Optics

7

Imaging Techniques, Optical Measuring Instruments, Photocathodes, X Ray Astronomy, Data Storage, Digital Data, Electrostatics, Fiber Optics, Image Resolution, Photons, Prototypes, Pulse Amplitude

Scientific paper

The Photicon is a novel imaging optical detector utilizing a conventional semitransparent photocathode, imaging electrostatic optics, microchannel plates, and a crossed-wire-grid position-sensitive charge detector. Its sensitivity to single optical photons over a two-dimensional area, high-resolution imaging, and timing capability render it useful for recording scintillations from X-ray image converters in X-ray astronomy. A digital word indicating the position of a single photon event is produced; the image can be stored in an array or serially. Spatial resolution to 20 microns in a 25 mm diam active area detector is reported, and modifications to achieve a spectral range of 120-730 nm are mentioned.

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