Superconducting magnet split cryostat cryogen ride-through reserve

摘要

An open architecture recondensing superconducting magnet (10) utilizing an upper and lower cryogen vessel (32, 33) connected by a passageway (37) which extends above the bottom (44) of upper cryogen vessel to discontinue the flow of liquid cryogen (46) through the passageway to reserve liquid cryogen in the upper cryogen vessel when the cryogen level falls to provide an increased ride-through period in the event of a depleting liquid cryogen supply due to failure of the cryogen gas recondenser. A signal is provided (62) to indicate the need to correct the failure.