Observation of Radial Ring Deformations using Closed Orbits at LEP

With a circumference of 27.7 km the LEP ring is subject to long large geological deformations which must be monitored accurately to guarantee a sufficient precision on the beam energy for the LEP experiments. Changes of the LEP circimference can be extracted from the radial position of the closed or...

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Detalles Bibliográficos
Autor principal: Wenninger, J
Lenguaje:eng
Publicado: 1999
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/387157
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author Wenninger, J
author_facet Wenninger, J
author_sort Wenninger, J
collection CERN
description With a circumference of 27.7 km the LEP ring is subject to long large geological deformations which must be monitored accurately to guarantee a sufficient precision on the beam energy for the LEP experiments. Changes of the LEP circimference can be extracted from the radial position of the closed orbits with an accurancy better than 0.1 mm. The observed tidal deformations with amplitudes of up to 1 mm were found to be in good agreement with geological models. Besides such periodic effects seasonalcircumference variations of 2 mm are also observed. A summary of measurements collected between 1993 and 1998 is presented.
id cern-387157
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1999
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spelling cern-3871572023-05-05T13:07:36Zhttp://cds.cern.ch/record/387157engWenninger, JObservation of Radial Ring Deformations using Closed Orbits at LEPAccelerators and Storage RingsWith a circumference of 27.7 km the LEP ring is subject to long large geological deformations which must be monitored accurately to guarantee a sufficient precision on the beam energy for the LEP experiments. Changes of the LEP circimference can be extracted from the radial position of the closed orbits with an accurancy better than 0.1 mm. The observed tidal deformations with amplitudes of up to 1 mm were found to be in good agreement with geological models. Besides such periodic effects seasonalcircumference variations of 2 mm are also observed. A summary of measurements collected between 1993 and 1998 is presented.CERN-SL-99-025-OPoai:cds.cern.ch:3871571999
spellingShingle Accelerators and Storage Rings
Wenninger, J
Observation of Radial Ring Deformations using Closed Orbits at LEP
title Observation of Radial Ring Deformations using Closed Orbits at LEP
title_full Observation of Radial Ring Deformations using Closed Orbits at LEP
title_fullStr Observation of Radial Ring Deformations using Closed Orbits at LEP
title_full_unstemmed Observation of Radial Ring Deformations using Closed Orbits at LEP
title_short Observation of Radial Ring Deformations using Closed Orbits at LEP
title_sort observation of radial ring deformations using closed orbits at lep
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/387157
work_keys_str_mv AT wenningerj observationofradialringdeformationsusingclosedorbitsatlep

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