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Fig. 17

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Top view of the AtLAST receiver cabin. The Cassegrain-mounted instruments are shown in red. The access platform for these instruments, which moves with the elevation rotating structure, is shown in green. The Nasmyth-mounted instruments (blue cylinders) are located on the yellow platforms, which do not move with the elevation rotating structure. Each Nasmyth platform has an area of 154 m2. The receiver cabin area for the four Cassegrain instruments has a size of ~410 m2, while the floor to ceiling height is ≈6.3 meters. Top views of average adult humans are shown for scale.

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