A prototype cryogenic pick-off arm for multi-IFU spectrometers

Suzanne K. Ramsay Howat; David J. Robertson; Andrew Haslehurst; Juergen Schmoll; Philip Parr Burman; Ray M. Sharples; Colin Dickson; Peter Hastings; David Lee; Peter Luke; Paul McMahon; Nigel Phillips; Martyn Wells; Colin Cunnigham; Nigel A. Dipper; Robin Aspey

doi:10.1117/12.551545

30 September 2004 A prototype cryogenic pick-off arm for multi-IFU spectrometers

Suzanne K. Ramsay Howat, David J. Robertson, Andrew Haslehurst, Juergen Schmoll, Philip Parr Burman, Ray M. Sharples, Colin Dickson, Peter Hastings, David Lee, Peter Luke, Paul McMahon, Nigel Phillips, Martyn Wells, Colin Cunnigham, Nigel A. Dipper, Robin Aspey

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Proceedings Volume 5492, Ground-based Instrumentation for Astronomy; (2004) https://doi.org/10.1117/12.551545
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

A prototype cryogenic 'pick-off' arm for selecting a small field from the focal plane of a large telescope has been built and tested against a set of scientific requirements representative of those for proposed multi-integral-field spectrographs. In this paper, we present the design of the arm and the results of the cryogenic testing. Since the proposed instruments will require tens of arms, perhaps hundreds, we have also considered the industrialisation of the manufacture and assembly of the arms. We briefly discuss this aspect of the design and the possibilities for future instrumentation on Extremely Large Telescopes.

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Suzanne K. Ramsay Howat, David J. Robertson, Andrew Haslehurst, Juergen Schmoll, Philip Parr Burman, Ray M. Sharples, Colin Dickson, Peter Hastings, David Lee, Peter Luke, Paul McMahon, Nigel Phillips, Martyn Wells, Colin Cunnigham, Nigel A. Dipper, and Robin Aspey "A prototype cryogenic pick-off arm for multi-IFU spectrometers", Proc. SPIE 5492, Ground-based Instrumentation for Astronomy, (30 September 2004); https://doi.org/10.1117/12.551545

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