SPIRE Design Description - Research Services

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Draft SPIRE Design Description Document 14:45:59 AGR Y=+16.407 Y=-16.889 Y= 0.000 Inclined plane parameters: X=-77.108 Corner radius = 10 CODEV footprint limits Spectrometer: +-1/2 +-1/2 arc min chop Spectrometer: +-1/2 arc min jiggle Photometer: +-2 arc min chop Photometer: +-1/2 arc min jiggle SURFACE 27 X=-52.088 Corner radius = 2 Revrsd PH154B+SP501E, footprint on inclined plane 42 X= 0.000 centre offset : 89.980 mm from telescope axis centre offset : 30.943 mm above telescope axial focus Tilt angle: 18.0 degrees X=+39.316 Y=+23.596 Y=-22.992 30.0 MM 14-Dec-00 Figure 3-17 Chopped and jiggled footprints of the photometer and spectrometer arrays at the focal plane of the Herschel telescope. The solid line shows the boundary used to define the physical stop that will be placed at the entrance to the SPIRE FPU.
Draft SPIRE Design Description Document Entrance hole Field stop 2K box Input baffle 43 2K box Output baffle Cold stop Figure 3-18 - Overview of the straylight baffling scheme for the photometer Output baffle Input baffle Figure 3-19 - Possible baffling scheme for the spectrometer 4K box 4K box
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SPIRE Design Description - Research Services

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