Image Details
Caption: Figure 1.
Each of the 10 petals on DESI is a complete instrument with 502 robots, 12–14 fiducial point sources, a guide or wave front camera, a protective enclosure for fiber splices, power supplies, and control electronics. At left, a fully assembled petal is viewed from the front, looking toward the robotically controlled fiber tips. Fiducial sources are mounted in cylindrical housings and interspersed throughout the robot array. A guide camera (covered by a protective plate in this image) is mounted at the upper-right corner, and the whole assembly here is surrounded by a protective metal enclosure (which is removed just prior to installation in the telescope). At the right, a side view shows the layout of fibers, electronics, and the support structure.
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