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1.5m R-C System Efficiency plots

Plot of the efficiency of the 1.5-m R-C spectrograph (percentage of photons striking the primary that are detected) versus wavelength for four low-dispersion gratings (13, 11, 09 and 32).

System efficiencies measured February 2002

 

System efficiencies measured in November 1996

Source URL (retrieved on 02/09/2013 - 07:46): http://www.ctio.noao.edu/noao/es/node/924