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Characterisation of Herschel-SPIRE flight model optical performances

Ferlet, Marc and Laurent, Glenn and Swinyard, Bruce and Glenn, Jason and Bock, Jamie and Dohlen, Kjetil (2008) Characterisation of Herschel-SPIRE flight model optical performances. In: Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter. Proceedings of SPIE. No.7010. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 70102U. ISBN 9780819472205.

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The Spectral and Photometric Imaging Receiver (SPIRE) is one of three scientific instruments on ESA's Herschel Space Observatory. This long wavelength instrument covers 200 to 670μm with a three band photometric camera and a two band imaging Fourier Transform Spectrometer (IFTS). Following first results reported in a previous paper, we discuss the in-band optical performances of the flight model as measured extensively during several dedicated test campaigns. Complementary to the experimentally probed spectral characteristics of the instrument detailed in an accompanying paper (see L.D. Spencer et al., in these proceedings), attention is focused here on a set of standard but key tests aimed at measuring the spatial response of the Photometer and Spectrometer end-to-end optical chain, including detector. Effects of defocus as well as source size extent, in-band wavelength, and polarization are also investigated over respective Photometer and Spectrometer field-of-views. Comparison with optical modelling, based on instrument design knowledge and some of the internal component measured characteristics, is performed. Beyond the specific characterisation of each effect, this allows estimating in each band where optical behaviour and detector behaviour respectively dominates and also reconstructing some of the contributors to the instrument throughput. Based on this analysis, retrieved optical performances are finally assessed against the related science-driven instrument requirements.

Item Type:Book Section
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URLURL TypeDescription
Glenn, Jason0000-0001-7527-2017
Bock, Jamie0000-0002-5710-5212
Additional Information:© 2008 Society of Photo-Optical Instrumentation Engineers (SPIE). We acknowledge the support and collaboration with the entire SPIRE instrument consortium[1] led by the Principal Investigators Matt Griffin (Cardiff University – UK) and Laurent Vigroux (IAP – France) and, through the SPIRE project management, by Ken King (RAL – UK) and Eric Sawyer (RAL - UK).
Subject Keywords:Herschel, SPIRE, far-infrared, sub-millimetre, optical characterisation, performances verification
Series Name:Proceedings of SPIE
Issue or Number:7010
Record Number:CaltechAUTHORS:20190517-110828785
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Official Citation:Marc Ferlet, Glenn Laurent, Bruce Swinyard, Jason Glenn, Jamie Bock, and Kjetil Dohlen "Characterisation of Herschel-SPIRE flight model optical performances", Proc. SPIE 7010, Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter, 70102U (12 July 2008); doi: 10.1117/12.788888;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:95566
Deposited By: Tony Diaz
Deposited On:20 May 2019 18:25
Last Modified:16 Nov 2021 17:13

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