Importance

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Abstract

In a cryogen cooling system for cooling a superconducting magnet, a cryogen vessel is linked to a cooling loop arrangement in thermal contact with the superconducting magnet. A recondensing chamber is arranged such that a lower extremity of the cryogen vessel is above a lower extremity of the recondensing chamber. A recondensing refrigerator is arranged to recondense cryogen gas within the recondensing chamber. A heater is positioned to heat gaseous cryogen within the recondensing chamber, and wherein the recondensing chamber is hydraulically connected to the cryogen vessel by a cryogen supply pipe. An upper end of the cryogen supply pipe is exposed to cryogen gas in the cryogen vessel and a lower end of cryogen supply pipe is exposed to an interior of the recondensing chamber towards or at its lower extremity.

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First Claim