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The crossover of refrigerator-cooled cryopumps

✍ Scribed by C Juhnke; HH Klein; S Schreck; U Timm; HU Häfner; M Mattern-Klosson; H-J Mundinger


Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
235 KB
Volume
44
Category
Article
ISSN
0042-207X

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Optimization of refrigerator-cooled curr
✍ J. Gerhold 📂 Article 📅 1976 🏛 Elsevier Science 🌐 English ⚖ 904 KB

Large superconducting apparatus are best cooled by directly coupled refrigerators. The input of high currents to the superconductors produces heat losses according to the Wiedemann-Franz law. It is well-known that the direct input losses can be reduced when the leads are precooled over their entire