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Eucalyptus Characteristics


I F U

 
Fibers Polymicro blue fibers - 50 mm core
Number of fibers 512
Microlenses Limo cylindrical array 16 x 32 (1 mm pitch)
IFU Focal ratio input - output f /10 - f / 5.5
Spatial coverage 0.9" per microlens ( 15"x 30" )

Spectrograph

 
Bench mounted, quasi Littrow  
Spectral Resolution   4 000 ( 600 grooves / mm grating)
  12 000 (1800 grooves / mm grating)
Wavelength coverage 400 - 900 nm 
  40 nm in one shot ( CCD 106, 600 grooves/mm gr.)
Calibration Unit He - Ne - Ar lamps

Efficiency

 
Sky   ~ 80 %
Telescope       78 %
Foreoptics       90 % 
IFU       53 %
Spectrograph       56 % (without coating)
CCD       60 % (# 106 - at 650nm)
Grating    ~ 60 % (at 650nm)
Total         6 %  (expected 11 % with coating + new CCD)