Supercritical Helium Cooling of the LHC Beam Screens

The cold mass of the LHC superconducting magnets, operating in pressurised superfluid helium at 1.9 K, must be shielded from the dynamic heat loads induced by the circulating particle beams, by means of beam screens maintained at higher temperature. The beam screens are cooled between 5 and 20 K by...

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Detalles Bibliográficos
Autores principales: Hatchadourian, E, Lebrun, P, Tavian, L
Lenguaje:eng
Publicado: 1998
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/364733
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author Hatchadourian, E
Lebrun, P
Tavian, L
author_facet Hatchadourian, E
Lebrun, P
Tavian, L
author_sort Hatchadourian, E
collection CERN
description The cold mass of the LHC superconducting magnets, operating in pressurised superfluid helium at 1.9 K, must be shielded from the dynamic heat loads induced by the circulating particle beams, by means of beam screens maintained at higher temperature. The beam screens are cooled between 5 and 20 K by forced flow of weakly supercritical helium, a solution which avoids two-phase flow in the long, narr ow cooling channels, but still presents a potential risk of thermohydraulic instabilities. This problem has been studied by theoretical modelling and experiments performed on a full-scale dedicated te st loop.
id cern-364733
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1998
record_format invenio
spelling cern-3647332023-05-31T13:20:42Zhttp://cds.cern.ch/record/364733engHatchadourian, ELebrun, PTavian, LSupercritical Helium Cooling of the LHC Beam ScreensAccelerators and Storage RingsThe cold mass of the LHC superconducting magnets, operating in pressurised superfluid helium at 1.9 K, must be shielded from the dynamic heat loads induced by the circulating particle beams, by means of beam screens maintained at higher temperature. The beam screens are cooled between 5 and 20 K by forced flow of weakly supercritical helium, a solution which avoids two-phase flow in the long, narr ow cooling channels, but still presents a potential risk of thermohydraulic instabilities. This problem has been studied by theoretical modelling and experiments performed on a full-scale dedicated te st loop.LHC-Project-Report-212CERN-LHC-Project-Report-212oai:cds.cern.ch:3647331998-07-29
spellingShingle Accelerators and Storage Rings
Hatchadourian, E
Lebrun, P
Tavian, L
Supercritical Helium Cooling of the LHC Beam Screens
title Supercritical Helium Cooling of the LHC Beam Screens
title_full Supercritical Helium Cooling of the LHC Beam Screens
title_fullStr Supercritical Helium Cooling of the LHC Beam Screens
title_full_unstemmed Supercritical Helium Cooling of the LHC Beam Screens
title_short Supercritical Helium Cooling of the LHC Beam Screens
title_sort supercritical helium cooling of the lhc beam screens
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/364733
work_keys_str_mv AT hatchadouriane supercriticalheliumcoolingofthelhcbeamscreens
AT lebrunp supercriticalheliumcoolingofthelhcbeamscreens
AT tavianl supercriticalheliumcoolingofthelhcbeamscreens

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