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Ultra-high vacuum seals operating under pressure and at 1.8 K

The Large Hadron Collider (LHC) project will be the next major high energy physics facility at CERN. Superconducting magnets operating at a magnetic field of 8.4 Tesla in a superfluid helium bath at 1.8 K are required to guide the high energy beams of protons on their trajectory. As part of the magn...

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Detalles Bibliográficos
Autores principales: Brunet, J C, Jacquemod, A
Lenguaje:eng
Publicado: 1996
Materias:
Acceso en línea:http://cds.cern.ch/record/315840
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author Brunet, J C
Jacquemod, A
author_facet Brunet, J C
Jacquemod, A
author_sort Brunet, J C
collection CERN
description The Large Hadron Collider (LHC) project will be the next major high energy physics facility at CERN. Superconducting magnets operating at a magnetic field of 8.4 Tesla in a superfluid helium bath at 1.8 K are required to guide the high energy beams of protons on their trajectory. As part of the magnet qualification tests, magnetic measurements are made using a special device where demountable seals are required. The seals must be leak tight to vacuum and must be able to resist for short periods to pressure bursts up to 20 bar during resistive transitions (quench). Two types of seals have been qualified. Maximum leak rates were in the range 6.10-10 to 1.10-9 mbar.l.s-1, in the worst conditions (20 bar, superfluid helium at 1.8 K).
id cern-315840
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1996
record_format invenio
spelling cern-3158402023-05-31T13:21:24Zhttp://cds.cern.ch/record/315840engBrunet, J CJacquemod, AUltra-high vacuum seals operating under pressure and at 1.8 KAccelerators and Storage RingsThe Large Hadron Collider (LHC) project will be the next major high energy physics facility at CERN. Superconducting magnets operating at a magnetic field of 8.4 Tesla in a superfluid helium bath at 1.8 K are required to guide the high energy beams of protons on their trajectory. As part of the magnet qualification tests, magnetic measurements are made using a special device where demountable seals are required. The seals must be leak tight to vacuum and must be able to resist for short periods to pressure bursts up to 20 bar during resistive transitions (quench). Two types of seals have been qualified. Maximum leak rates were in the range 6.10-10 to 1.10-9 mbar.l.s-1, in the worst conditions (20 bar, superfluid helium at 1.8 K).LHC-Project-Report-81CERN-LHC-Project-Report-81oai:cds.cern.ch:3158401996-10-22
spellingShingle Accelerators and Storage Rings
Brunet, J C
Jacquemod, A
Ultra-high vacuum seals operating under pressure and at 1.8 K
title Ultra-high vacuum seals operating under pressure and at 1.8 K
title_full Ultra-high vacuum seals operating under pressure and at 1.8 K
title_fullStr Ultra-high vacuum seals operating under pressure and at 1.8 K
title_full_unstemmed Ultra-high vacuum seals operating under pressure and at 1.8 K
title_short Ultra-high vacuum seals operating under pressure and at 1.8 K
title_sort ultra-high vacuum seals operating under pressure and at 1.8 k
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/315840
work_keys_str_mv AT brunetjc ultrahighvacuumsealsoperatingunderpressureandat18k
AT jacquemoda ultrahighvacuumsealsoperatingunderpressureandat18k