Long-term operational experience and upg
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G. Passardi; N. Delruelle; A. Juillerat; J. Tischhauser
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Article
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1992
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Elsevier Science
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English
β 399 KB
Cryogenics at liquid helium temperature has been requested in the SPS for testing and operating superconducting accelerating RF cavities: in 1988 and 1989 a single LEP prototype cavity made of bulk niobium, in 1990 two cavities made of niobium sputtered copper and finally, in 1991, a single niobium