𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A 4He-3He refrigerator through which 4He is circulated

✍ Scribed by K.W. Taconis; N.H. Pennings; P. Das; R. De Bruyn Ouboter


Publisher
Elsevier Science
Year
1971
Weight
152 KB
Volume
56
Category
Article
ISSN
0031-8914

No coin nor oath required. For personal study only.


πŸ“œ SIMILAR VOLUMES


An improved version of the He3ξ—ΈHe4 refri
✍ N.H. Pennings; K.W. Taconis; R. de Bruyn Ouboter πŸ“‚ Article πŸ“… 1974 πŸ› Elsevier Science 🌐 English βš– 146 KB

QT n -(4) L At the low temperature end, T = 4.2 K and (5) and the parameters p, A, X, Cp are constant and over a short length near the end the temperature variation can be taken as linear, which means that d2T -0 dx 2 From (3), (4), and (5) LI2pX 1 QT-Cp QL By differentiating dQT LI2 pX 1 dQL Cp Q~

Improved 3He/4He refrigerator
✍ G Dall'Oglio; W Fischer; L Martinis; L Pizzo πŸ“‚ Article πŸ“… 1993 πŸ› Elsevier Science 🌐 English βš– 146 KB

The characteristics and performance of an improved 3He/4He double stage refrigerator are presented. It is based on the same principle as the previous double stage refrigerator described in reference 1. A new geometry was used to overcome both the extra thermal input due to gas convection in the cond

New 3He/4He refrigerator
✍ G. Dall'Oglio; L. Pizzo; L. Piccirillo; L. Martinis πŸ“‚ Article πŸ“… 1991 πŸ› Elsevier Science 🌐 English βš– 217 KB

The sensitivity increase in bolometers obtained by operating temperatures of 1 K (helium-4) and 0.3 K (helium-3), with respect to standard bolometers cooled at pumped 4He temperature, represents in infrared and submillimetric astronomy a remarkable step forward in applications both on large ground t

A Pomeranchuk cell which is precooled an
✍ B. van den Brandt; W. Griffioen; W.Th. Wenckebach; K.W. Taconis; R. de Bruyn Oub πŸ“‚ Article πŸ“… 1982 πŸ› Elsevier Science 🌐 English βš– 612 KB

This paper deals with a special Pomeranchuk cooling device which is used in combination with a He4-cycling He3-He 4 dilution refrigerator at high pressures. The lowest temperature obtained was 1. 1 mK.

3He/4He dilution refrigerator without a
✍ K. Uhlig πŸ“‚ Article πŸ“… 1987 πŸ› Elsevier Science 🌐 English βš– 272 KB

A 3He/4He dilution refrigerator is described where the instreaming 3He is precooled and liquefied by a counterflow heat exchanger which makes use of the enthalpy of the cold 3He gas pumped out of the still, and by subsequent Joule-Thomson expansion. This condenser replaces the usual 4He condenser.