β Scribed by K. Uhlig; W. Hehn
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
In this paper we describe improvements and changes to a 3 He/ 4 He dilution refrigerator (DR) which is precooled by a Gifford-McMahon (GM) refrigerator instead of a helium bath cryostat. The general layout of this ''dry'' DR has been described in detail before. First we report about the installation
A ZHe/"He dilution refrigerator is described where a commercial two-stage Gifford-McMahon refrigerator (Leybold RGD 210) cools the dilution unit and the radiation shields of the cryostat. This work is a continuation of previously described experiments where a more powerful closed cycle refrigerator
A refrigerator capable of operating both in evaporation and dilution modes is described. The refrigerator provides preliminary cooling of investigated samples down to a starting temperature of about 0.3 K and permits the location of samples directly in the mixing chamber as well as their replacement
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.