Planck 2013 results
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Fig. 1

image

Top left and right: completed multimode (see Maffei et al. 2010) 545 GHz and single-mode 143 GHz SWB bolometer modules. Middle: an exploded view of the assembly of a PSB (showing the definition of the “a” and “b” detectors of the pair). Alignment pins, shown in solid black, fix the aft and fore bolometer assemblies to an angular precision of <0.1°. The SWB assembly is similar to the PSB aft bolometer assembly and does not include a feedhorn aperture integrated with the module package. Bottom: PSB pair epoxied in the module parts prior to mating. To the right, the feedhorn aperture can be seen through the fore bolometer in the housing. To the left, the quarter-wave backshort can be seen through the aft bolometer absorber mesh.

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