Portal de Periódicos da CAPES

Demountable 4He film stopper for dilution refrigerators

1976; American Institute of Physics; Volume: 47; Issue: 2 Linguagem: Inglês

10.1063/1.1134600

1527-2400

B. Moses Abraham, Charles M. Falco,

Physics of Superconductivity and Magnetism

We describe an easily assembled and demountable film stopper for use in either a pumped 4He pot or a 3He–4He dilution refrigerator. The orifice plate for the film stopper is fabricated from a Pyrex glass plate and is sealed to the metal body of the still with an indium O-ring. The advantage of glass over metal for the orifice plate is achieved without complicated construction.