HE-3-HE-4 DILUTION REFRIGERATOR WITH GIFFORD-MCMAHON PRECOOLING

Authors
UHLIG K HEHN W
Citation
K. Uhlig et W. Hehn, HE-3-HE-4 DILUTION REFRIGERATOR WITH GIFFORD-MCMAHON PRECOOLING, Cryogenics, 33(11), 1993, pp. 1028-1031
Citations number
8
Categorie Soggetti
Physics, Applied
Journal title
Cryogenics → ACNP
ISSN journal
00112275
Volume
33
Issue
11
Year of publication
1993
Pages
1028 - 1031
Database
ISI
SICI code
0011-2275(1993)33:11<1028:HDRWGP>2.0.ZU;2-9
Abstract
We present data and constructional details of a He-3/He-4 dilution ref rigerator where a commercial two-stage Gifford-McMahon closed cycle re frigerator (Leybold RGD 510) precools the dilution unit, and thus this refrigerator does not require any external supply of liquid nitrogen or helium. The lowest temperature reached in the mixing chamber was 42 mK at a He-3 flow rate of 1 X 10(-4) mol s-1.