Computer Science – Performance
Scientific paper
Jun 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pasp...96..488w&link_type=abstract
Publications of the Astronomical Society of the Pacific, Vol. 96, NO. 580, P. 488, 1984
Computer Science
Performance
2
Scientific paper
Comparison of a thin RCA CCD with a GEC CCD for echelle spectroscopy at the Whipple Observatory in a spectral region (λ6700) where both operate near their peak quantum efficiencies reveals the decisive superiority of the GEC chip. This is true in spite of a more than twofold advantage in quantum efficiency for the RCA CCD, primarily owing to difficulty in precise flat-fielding, poor noise performance, and low duty cycle at the telescope. The perceived relative merits of the two chips, however, will depend on spectrograph characteristics at other telescopes, and especially on the relative quantum efficiencies at other wavelengths. The discussion points to optimum characteristics of a CCD for high-resolution spectroscopy.
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