Fig. 10
NIKA2 spectral characterisation for the two 260 GHz arrays, H (A1, blue) and V (A3, green) measured in the NIKA2 cryostat, and for the 150 GHz array (A2, red) measured in a test cryostat equipped with exact copies of the NIKA2 band-defining filters. The band transmissions are not corrected for Rayleigh-Jeans spectrum of the input source. We also show for comparison the atmospheric transmission (Pardo et al. 2002) assuming 2 mm of precipitable water vapour (PWV), that is, very good conditions, and 6 mm PWV, that is, average conditions.
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