Remember that cryostats are fragile. Our cryostats have epoxy tails that are brittle when cold and diffuse He gas when warm. Therefore, please treat the cryostats with care.
Please, DO NOT allow the cryostat to warm up with He inside! The He will diffuse through the plastic tail and permanently ruin the vacuum.
Also, please make sure the cryostat is aligned precisely with the magnet.