Power loss calculation in separated and common beam chambers of the LHC

The performance of 25 ns beams in the LHC is strongly limited by the electron cloud. To determine the amount of electron cloud in the cold sections of the machine, it is very important to be able to disentangle the beam induced heating due to the beam coupling impedance from that attributable to ele...

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Detalles Bibliográficos
Autores principales: Zannini, C, Rumolo, G, Iadarola, G
Lenguaje:eng
Publicado: 2014
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.18429/JACoW-IPAC2014-TUPRI061
http://cds.cern.ch/record/1742192
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author Zannini, C
Rumolo, G
Iadarola, G
author_facet Zannini, C
Rumolo, G
Iadarola, G
author_sort Zannini, C
collection CERN
description The performance of 25 ns beams in the LHC is strongly limited by the electron cloud. To determine the amount of electron cloud in the cold sections of the machine, it is very important to be able to disentangle the beam induced heating due to the beam coupling impedance from that attributable to electron cloud. This paper will focus on the calculation of the first contribution. First, the impedance model used for the calculation of the beam induced power loss is briefly discussed. Then, the methods for the calculation of the beam induced power loss in regions with one or two beams are also described. Finally, the calculated power loss is compared with the measured heat loads for both 25 and 50 ns beams in both the LHC arcs and in the inner triplets (ITs).
id cern-1742192
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
record_format invenio
spelling cern-17421922022-08-17T13:31:24Zdoi:10.18429/JACoW-IPAC2014-TUPRI061http://cds.cern.ch/record/1742192engZannini, CRumolo, GIadarola, GPower loss calculation in separated and common beam chambers of the LHCAccelerators and Storage RingsThe performance of 25 ns beams in the LHC is strongly limited by the electron cloud. To determine the amount of electron cloud in the cold sections of the machine, it is very important to be able to disentangle the beam induced heating due to the beam coupling impedance from that attributable to electron cloud. This paper will focus on the calculation of the first contribution. First, the impedance model used for the calculation of the beam induced power loss is briefly discussed. Then, the methods for the calculation of the beam induced power loss in regions with one or two beams are also described. Finally, the calculated power loss is compared with the measured heat loads for both 25 and 50 ns beams in both the LHC arcs and in the inner triplets (ITs).CERN-ACC-2014-0122oai:cds.cern.ch:17421922014
spellingShingle Accelerators and Storage Rings
Zannini, C
Rumolo, G
Iadarola, G
Power loss calculation in separated and common beam chambers of the LHC
title Power loss calculation in separated and common beam chambers of the LHC
title_full Power loss calculation in separated and common beam chambers of the LHC
title_fullStr Power loss calculation in separated and common beam chambers of the LHC
title_full_unstemmed Power loss calculation in separated and common beam chambers of the LHC
title_short Power loss calculation in separated and common beam chambers of the LHC
title_sort power loss calculation in separated and common beam chambers of the lhc
topic Accelerators and Storage Rings
url https://dx.doi.org/10.18429/JACoW-IPAC2014-TUPRI061
http://cds.cern.ch/record/1742192
work_keys_str_mv AT zanninic powerlosscalculationinseparatedandcommonbeamchambersofthelhc
AT rumolog powerlosscalculationinseparatedandcommonbeamchambersofthelhc
AT iadarolag powerlosscalculationinseparatedandcommonbeamchambersofthelhc

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