HFI reference bolometer

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This sections provides information on the reference bolometer interferograms and spectra used in determining the relative spectral response functions for the Planck HFI(Planck) High Frequency Instrument detectors and frequency bands.

Properties of reference bolometer spectra

Band [GHz] No. Interfer. No. Spec. MPD [cm] ILSInstrument Line Shape FWHMFull-Width-at-Half-Maximum [cm-1] Avg. S/N
100 164 164 29.644698 0.020357772 11.478057
143 164 164 29.644698 0.020357772 37.361317
217 164 164 29.644698 0.020357772 126.14280
353 24 24 29.652306 0.020352549 136.06159
545 24 24 29.652306 0.020352549 314.58093
857 24 24 29.652306 0.020352549 388.23050
Reference bolometer spectra and S/N.


Reference bolometer spectra (top) and S/N (bottom) for each of the HFI(Planck) High Frequency Instrument bands (vertical dashed lines represent band edges).

Approximate S/N ratio for the individual HFI(Planck) High Frequency Instrument detector spectra and the reference bolometer spectra.