We introduce a mini 3He refrigerator, operating at 300 mK starting from 4.2 K without pumping on the main 4He bath. The innovative idea is that the present one is suitable for a very fast operation; for its use, it is sufficient a storage 4He Dewar. In this way we drastically reduce the time required to cool it down, because there is no need for a classic cryostat. This prototype is particularly aimed for all those operations in which it is necessary to test a large number of samples that do not require long duration measurements at low temperature.
L., P., Dall'Oglio, G., L., M., L., S. (2006). “A multipurpose 3He refrigerator”. CRYOGENICS, 46, 762-764.
“A multipurpose 3He refrigerator”
DALL'OGLIO, Giorgio;
2006-01-01
Abstract
We introduce a mini 3He refrigerator, operating at 300 mK starting from 4.2 K without pumping on the main 4He bath. The innovative idea is that the present one is suitable for a very fast operation; for its use, it is sufficient a storage 4He Dewar. In this way we drastically reduce the time required to cool it down, because there is no need for a classic cryostat. This prototype is particularly aimed for all those operations in which it is necessary to test a large number of samples that do not require long duration measurements at low temperature.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
