Characteristics of the silicon diode vidicon

Astronomy and Astrophysics – Astronomy

Scientific paper

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Astronomical Photometry, Junction Diodes, Signal To Noise Ratios, Silicon Junctions, Vidicons, Cameras, Dynamic Characteristics, Luminous Intensity, Preamplifiers, Random Noise

Scientific paper

A series of laboratory tests of the silicon diode vidicon has yielded valuable information of particular importance to astronomers. The vidicons were operated in slow-scan mode. The tests showed that these vidicons can be expected to operate with a dynamic range of 1000, a signal-to-noise ratio of 200:1, an MTF of 50% at 10 cycles per mm, and integration capabilities of several hours. The noise in the output does not appear to be limited by photon statistics, but is dominated by systematic effects. The results confirm that these devices are extremely good sensors for low-contrast high-optical flux problems in astronomy.

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