Fig. 1
Left: GREAT mounted to the instrument flange, in stow position (the telescope parks at 40° elevation). During observations GREAT (together with the counterweight at top right) rotates ±20° from the vertical. Right: basic structural components of GREAT. One of the two cryostats, the location of the LO compartments and position of the main optics benches are shown. A more detailed view of the optical layout is given in Fig. 2.
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