A newly observed Effect affects the LEP Beam Energy

The LEP magnetic bending field and therefore the beam energy is changed by a current flow over the vacuum chamber. The current is created by trains travelling between the Geneva main station and destinations in France. Some of the rail current leaks into earth and returns to the power station via th...

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Detalles Bibliográficos
Autores principales: Brun, G, Dehning, Bernd, Galbraith, Peter, Henrichsen, K N, Koratzinos, M, Placidi, Massimo, Puzo, P, Drees, A, Geitz, M A
Lenguaje:eng
Publicado: 1996
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/309231
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author Brun, G
Dehning, Bernd
Galbraith, Peter
Henrichsen, K N
Koratzinos, M
Placidi, Massimo
Puzo, P
Drees, A
Geitz, M A
author_facet Brun, G
Dehning, Bernd
Galbraith, Peter
Henrichsen, K N
Koratzinos, M
Placidi, Massimo
Puzo, P
Drees, A
Geitz, M A
author_sort Brun, G
collection CERN
description The LEP magnetic bending field and therefore the beam energy is changed by a current flow over the vacuum chamber. The current is created by trains travelling between the Geneva main station and destinations in France. Some of the rail current leaks into earth and returns to the power station via the LEP tunnel, where the vacuum chamber is one of the conductors. Train leakage currents penetrate LEP at the injection lines from the SPS close to IP1 and between IP5 and IP7, thereby interacting with the magnetic dipole field. The observed changes in B field cause beam energy increases of several MeV.
id cern-309231
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1996
record_format invenio
spelling cern-3092312023-05-05T12:57:26Zhttp://cds.cern.ch/record/309231engBrun, GDehning, BerndGalbraith, PeterHenrichsen, K NKoratzinos, MPlacidi, MassimoPuzo, PDrees, AGeitz, M AA newly observed Effect affects the LEP Beam EnergyAccelerators and Storage RingsThe LEP magnetic bending field and therefore the beam energy is changed by a current flow over the vacuum chamber. The current is created by trains travelling between the Geneva main station and destinations in France. Some of the rail current leaks into earth and returns to the power station via the LEP tunnel, where the vacuum chamber is one of the conductors. Train leakage currents penetrate LEP at the injection lines from the SPS close to IP1 and between IP5 and IP7, thereby interacting with the magnetic dipole field. The observed changes in B field cause beam energy increases of several MeV.CERN-SL-96-036oai:cds.cern.ch:3092311996
spellingShingle Accelerators and Storage Rings
Brun, G
Dehning, Bernd
Galbraith, Peter
Henrichsen, K N
Koratzinos, M
Placidi, Massimo
Puzo, P
Drees, A
Geitz, M A
A newly observed Effect affects the LEP Beam Energy
title A newly observed Effect affects the LEP Beam Energy
title_full A newly observed Effect affects the LEP Beam Energy
title_fullStr A newly observed Effect affects the LEP Beam Energy
title_full_unstemmed A newly observed Effect affects the LEP Beam Energy
title_short A newly observed Effect affects the LEP Beam Energy
title_sort newly observed effect affects the lep beam energy
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/309231
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