Demountable 4He film stopper for dilution refrigerators

B. M. Abraham, Charles M. Falco

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)253-254
Number of pages2
JournalReview of Scientific Instruments
Issue number2
StatePublished - 1976

ASJC Scopus subject areas

  • Instrumentation


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