EEV large-format CCD camera on the WHT ISIS spectrograph

Paul R. Jorden

doi:10.1117/12.19163

1 July 1990 EEV large-format CCD camera on the WHT ISIS spectrograph

Paul R. Jorden

Proceedings Volume 1235, Instrumentation in Astronomy VII; (1990) https://doi.org/10.1117/12.19163
Event: SPIE Astronomical Telescopes and Instrumentation for the 21st Century, 1990, Tucson, AZ, United States

Abstract

A 770 x 1152-element CCD camera being developed for use with the ISIS spectrograph on the 4.2-m William Herschel Telescope at Observatorio del Roque de los Muchachos is described and illustrated with diagrams and graphs of test data. The super-grade EEV 88200 CCDs selected for the ISIS red-arm (401-1060 nm) camera have pixel size 22.5 microns square and rms readout noise 3.5 electrons at operating temperature 150 K; peak quantum efficiency of 50 percent is measured at wavelength 650 nm, and the spatial resolution obtained with ISIS is less than 1.2 pixels FWHM. A similar camera is to be constructed for the blue arm of ISIS. Also provided is a brief overview of the CCD controller hardware and software, summarizing the detailed descriptions of Bregman and Waltham (1986) and Bregman and Doorduin (1986).

Citation Download Citation

Paul R. Jorden "EEV large-format CCD camera on the WHT ISIS spectrograph", Proc. SPIE 1235, Instrumentation in Astronomy VII, (1 July 1990); https://doi.org/10.1117/12.19163

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