Conclusions on 8 Years Operation of the LEP 4.5 K Refrigeration System at CERN

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After 11 years of operation the Large Electron/Positron collider (LEP) was stopped in November 2000. Since 1993 a cryogenic system has been used to supply up to 72 superconducting (SC) cavity modules, using four large liquid-helium refrigerators at 4.5 K. We review eight years of operation of one of...

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Detalles Bibliográficos
Autores principales: Bangert, N, Claudet, S, Gayet, P, Sanmartí, M
Lenguaje:eng
Publicado: 2001
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.1063/1.1472027
http://cds.cern.ch/record/525103
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author Bangert, N
Claudet, S
Gayet, P
Sanmartí, M
author_facet Bangert, N
Claudet, S
Gayet, P
Sanmartí, M
author_sort Bangert, N
collection CERN
description After 11 years of operation the Large Electron/Positron collider (LEP) was stopped in November 2000. Since 1993 a cryogenic system has been used to supply up to 72 superconducting (SC) cavity modules, using four large liquid-helium refrigerators at 4.5 K. We review eight years of operation of one of the world's largest helium cryogenic systems, its evolution and cooling capacity availability correlated to the LEP increasing energy program. Failure statistics, availability, recovery time after breakdowns and reliability are analyzed, and the most relevant problems encountered during the operation and their cure exposed. The operational organization is also briefly described.
id cern-525103
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2001
record_format invenio
spelling cern-5251032023-05-31T14:19:15Zdoi:10.1063/1.1472027http://cds.cern.ch/record/525103engBangert, NClaudet, SGayet, PSanmartí, MConclusions on 8 Years Operation of the LEP 4.5 K Refrigeration System at CERNAccelerators and Storage RingsAfter 11 years of operation the Large Electron/Positron collider (LEP) was stopped in November 2000. Since 1993 a cryogenic system has been used to supply up to 72 superconducting (SC) cavity modules, using four large liquid-helium refrigerators at 4.5 K. We review eight years of operation of one of the world's largest helium cryogenic systems, its evolution and cooling capacity availability correlated to the LEP increasing energy program. Failure statistics, availability, recovery time after breakdowns and reliability are analyzed, and the most relevant problems encountered during the operation and their cure exposed. The operational organization is also briefly described.CERN-LHC-2001-004-ACRoai:cds.cern.ch:5251032001-10-29
spellingShingle Accelerators and Storage Rings
Bangert, N
Claudet, S
Gayet, P
Sanmartí, M
Conclusions on 8 Years Operation of the LEP 4.5 K Refrigeration System at CERN
title Conclusions on 8 Years Operation of the LEP 4.5 K Refrigeration System at CERN
title_full Conclusions on 8 Years Operation of the LEP 4.5 K Refrigeration System at CERN
title_fullStr Conclusions on 8 Years Operation of the LEP 4.5 K Refrigeration System at CERN
title_full_unstemmed Conclusions on 8 Years Operation of the LEP 4.5 K Refrigeration System at CERN
title_short Conclusions on 8 Years Operation of the LEP 4.5 K Refrigeration System at CERN
title_sort conclusions on 8 years operation of the lep 4.5 k refrigeration system at cern
topic Accelerators and Storage Rings
url https://dx.doi.org/10.1063/1.1472027
http://cds.cern.ch/record/525103
work_keys_str_mv AT bangertn conclusionson8yearsoperationofthelep45krefrigerationsystematcern
AT claudets conclusionson8yearsoperationofthelep45krefrigerationsystematcern
AT gayetp conclusionson8yearsoperationofthelep45krefrigerationsystematcern
AT sanmartim conclusionson8yearsoperationofthelep45krefrigerationsystematcern

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