Integrating vidicon systems at Cerro Tololo

Details Integrating vidicon systems at Cerro Tololo Integrating vidicon systems at Cerro Tololo

Feb 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979pasp...91..120a&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 91, Feb.-Mar. 1979, p. 120-139.

Astronomy and Astrophysics

Astronomy

63

Data Systems, Electronic Control, Telescopes, Vidicons, Astronomical Photography, Astronomical Spectroscopy, Cameras, Circuit Diagrams, Computer Systems Programs, Data Acquisition, Data Reduction, Digital Systems, Emission Spectra, Silicon Radiation Detectors

Scientific paper

The vidicon cameras, control electronics and associated software adopted for the Cerro Tololo Inter-American Observatory are discussed. The two-dimensional format, faint-object capabilities and lack of afterglow or counting-rate problems when used on bright objects make the silicon vidicon and the silicon intensified target (SIT) vidicon favored candidates for astronomical observations. Problems in designing low-noise, stable electronics are considered, with particular attention given to the read sequence, the electrodes, the digital system, self-check features and the signal chain. Results of tests at the telescope show that the system noise for the SIT vidicon is equivalent to about two detected photons. The sky-subtraction capability and resolution of the system are also treated.

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