1.5m R-C System Efficiency plots

R-C spectrograph is retired.

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

Updated on May 10, 2021, 10:34 am