Fig. 2

Left panel: distribution of pixel sensitivities (red for 3 mm array, blue for 2 mm array) compared to the reference goals of Planck HFI detectors. Right panel: averaged normalised spectral responses (red for 3 mm array, blue for 2 mm array). The spectrum bandwidth () is 0.28 and 0.32 for the 3 mm and 2 mm arrays respectively.
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