Use of narrow-pore filters in He II transfer devices - new results
✍ Scribed by S. Kasthurirengan; U. Schotte; H.D. Denner; Z. Szücs; G. Klipping
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 614 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0011-2275
No coin nor oath required. For personal study only.
✦ Synopsis
Receoved 10 May I985 Wtlh Ihe aim ol hndlng s.mple melhods Ior lhe labrlcaluon ol He II retllllrlg devtces, He II Ilow has been sludlecl Ihrough hllers made Irom various line powders (oxides and melals, gram stzes in lhe range 0.05-2 p m) by compaultng Ihem under pressure. The resulls clblained lot Ihe dltlerenl slales ol He II Ilow, especially m Ihe 'breaklhrough' and 'easy th:,,w' range, are explamed by ihe Iountaln ellem, He II hydrodynamics and Ihe chok.ng eHecl According Io Ihe resulls, pressedpowder hirers can be ¢':lassthecl inl(:l Ihree groups wtlh diHerenl Ih.)w characlerlsltcs, ul which Ihe 'good Iranster hller~' wllh a behawour neally des¢:rtl-)ed by simple Iheory are sullable Ior use in He II rehlhng devtces.