Ammalasunta commo commo papero zulú califai

My story with Francesc

Considerations about the atmospheric background and technique of differential modulation in infrared astronomy

Centro de producción floral y centro de visitantes. La Rosaleda. Parque del Oeste, Madri

“A multipurpose 3He refrigerator”

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