Passive vibration isolation for SITELLE's closed cycle cooled cryostats

Marc Baril; Tom Benedict; Gregory Barrick; Kevin Ho

doi:10.1117/12.925032

13 September 2012 Passive vibration isolation for SITELLE's closed cycle cooled cryostats

Marc Baril, Tom Benedict, Gregory Barrick, Kevin Ho

Proceedings Volume 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II; 84504B (2012) https://doi.org/10.1117/12.925032
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

Abstract

The SITELLE Imaging Fourier Transform Spectrometer system being developed by l'Université Laval at ABB-Bomem will require two identical CCD detector systems. Our requirements for the cryogenic system for these cameras are: cooling to below 190 K, extremely low vibrational input from the cryogenic system (<1 mg RMS from 0-2 kHz), hands-off operation over long periods of time and low original capital outlay and continued operation cost. These constraints drove towards the selection of a Polycold PCC cooled system which exhibits relatively low vibrational noise and can efficiently achieve the required cooling power in our target temperature range. This paper will present work performed to passively mitigate high frequency vibrations imparted by the Polycold PCC cryo-head on the detector cryostat.

Citation Download Citation

Marc Baril, Tom Benedict, Gregory Barrick, and Kevin Ho "Passive vibration isolation for SITELLE's closed cycle cooled cryostats", Proc. SPIE 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II, 84504B (13 September 2012); https://doi.org/10.1117/12.925032

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