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Throughput

The efficiency of the TAURUS-2 focal reducer (i.e. camera and collimator) is shown as a function of wavelength in Figure gif. The peak efficiency is 65 per cent. The throughput of the Fabry-Perot etalons used in TAURUS is difficult to quantify, but should be in the range 70 to 90 per cent. The triple period interference filters used as blocking filters have a typical peak transmission of about 60 per cent. The peak efficiency of the complete system is therefore likely to be about 30 per cent.

  
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Figure: The efficiency of the TAURUS-2 focal reducer (i.e. camera plus collimator)




Tue Aug 15 16:42:46 BST 1995