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Fig. 3


SEPIA receiver. Left: CAD picture showing the entire assembly of the SEPIA cryostat and dedicated SEPIA tertiary optics attached to the APEX Cabin A instrument-supporting frame. The SEPIA support toward the Cabin A floor uses gas springs unloading the frame and providing stable mechanical contact with the cabin floor. Right: picture of the SEPIA receiver installed at its outer PI 2 position in the APEX Cabin A.

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