Patent ID: 8290554
Filing Date: 2012-10-16
Classification: F25B,F25D

Abstract:
1. A cryostat comprising: a tank comprising at least one superconducting magnet coil that generates a magnet field, and a coolant that circulates in said tank to maintain said superconducting magnet coil in a superconducting state; said tank having a top side and having a tower pipe located at said top side of said tank having at least one opening communicating with an interior of the tank configured to perform at least one operation selected from the group consisting of filling the tank with said coolant and venting vaporized coolant from the interior of the tank, said tower pipe being subject to blockage; and a pressure sensor, and a pressure sensor pipe placing said pressure sensor in fluid communication with the interior of the tank, said pressure sensor being configured to detect blockage of said tower pipe and to react to detection of said blockage by immediately emitting a signal to an exterior of said tank.