Cryo Cooler

Both SPIRE and PACS use a cryo cooler developed by the CEA’s Low Temperatures Division. The cryo cooler is an absorption heat pump fuelled by active coal. It ensures the PACS and SPIRE satellites stay cooled to 300 mK (from 2 K)

PACS and SPIRE Cryo coolerPACS and SPIRE Interfaces with the cryo cooler
PACS and SPIRE Cryo cooler picture
Integration finale du cryocooler

Credits CNES/CEA