Understanding the Herschel-SPIRE bolometers

Adam L. Woodcraft; Hien Nguyen; James Bock; Matthew Griffin; Bernhard Schulz; Bruce Sibthorpe; Bruce Swinyard

doi:10.1117/12.788789

18 July 2008 Understanding the Herschel-SPIRE bolometers

Adam L. Woodcraft, Hien Nguyen, James Bock, Matthew Griffin, Bernhard Schulz, Bruce Sibthorpe, Bruce Swinyard

Proceedings Volume 7020, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV; 70200F (2008) https://doi.org/10.1117/12.788789
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

Bolometers are very simple devices. In principle, the behaviour of a bolometer can be described by a simple model along with a small number of parameters. The SPIRE instrument for the Herschel Space Observatory contains five arrays of NTD germanium spiderweb bolometers containing up to 139 pixels. We show from characterisation measurements on the ground using the flight read-out system that the bolometers follow the ideal model extremely well, are very stable, and that the read-out system is sufficiently well behaved to take advantage of this. Calibration should be greatly simplified by being able to take advantage of this behaviour.

Citation Download Citation

Adam L. Woodcraft, Hien Nguyen, James Bock, Matthew Griffin, Bernhard Schulz, Bruce Sibthorpe, and Bruce Swinyard "Understanding the Herschel-SPIRE bolometers", Proc. SPIE 7020, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV, 70200F (18 July 2008); https://doi.org/10.1117/12.788789

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