Large, bakeable, rotatable ultrahigh vacuum seals capable of operation at 10(-11) Torr are described. They employ doubly differentially pumped commercially available spring-loaded Teflon seals. A static version is very convenient for quick access as it requires nearly negligible sealing force other than atmospheric force.
No takes yet. Share an insight, caveat, or question.
Auerbach et al. (1978) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: