Vacuum flange fabrication at Nor-Cal. Photo: US ITER View full media

A close-up view of valves for the cryoviscous compressor pump prototype. Photo US ITER/ORNL View full media

Roughing pump from Pfeiffer View full media

Roughing pump prototype test stand: Photo: US ITER View full media

CVC compressor. Photo: US ITER View full media

The cryoviscous compressor prototype underwent testing at the ORNL Spallation Neutron Source cryogenic facility before shipment to the ITER site. Photo: US ITER/ORNL View full media