Passive vibration isolation for SITELLE's closed cycle cooled cryostats

摘要

The SITELLE Imaging Fourier Transform Spectrometer system being developed by l'Université Laval at ABB-Bomemwill 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-offoperation over long periods of time and low original capital outlay and continued operation cost. These constraintsdrove towards the selection of a Polycold PCC cooled system which exhibits relatively low vibrational noise and canefficiently achieve the required cooling power in our target temperature range. This paper will present work performedto passively mitigate high frequency vibrations imparted by the Polycold PCC cryo-head on the detector cryostat.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.