Cryostat for operation with liquid helium and method of operating the same

A cryostat for operation with liquid helium, comprising:

• a primary chamber comprising a main region and a pot region configured to contain a bath of liquid helium-4;
• a primary inlet configured for introduction of the liquid helium-4, the primary inlet comprising a transfer line extending into the primary chamber;
• a primary outlet configured for release of gaseous helium-4;
• and
• a baffle structure disposed in the primary chamber between the pot region and the main region, the baffle structure defining at least one flowpath for flow of the gaseous helium-4,
• wherein the cryostat is configured for operation under a continuous supply of the liquid helium-4;
• wherein the cryostat is configured for operation at a reduced pressure of the gaseous helium-4, whereby the gaseous helium-4 is pumped off through the primary outlet;
• and
• wherein the at least one flowpath forms a detoured connection between the pot region and the main region.