A Candidate Low Emittance Lattice for LEP at its Highest Energies

Several low emittance lattices have been proposed for LEP at its highest energies in order to reduce the horizontal beam size and bring the beam-beam limit within reach. However, optics with high phase advance per cell tend to have strong tune dependence on amplitude that can reduce the dynamic aper...

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Detalles Bibliográficos
Autores principales: Brandt, D, Herr, Werner, Jowett, John M, Lamont, M, Meddahi, Malika, Verdier, A
Lenguaje:eng
Publicado: 1998
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/359897
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author Brandt, D
Herr, Werner
Jowett, John M
Lamont, M
Meddahi, Malika
Verdier, A
author_facet Brandt, D
Herr, Werner
Jowett, John M
Lamont, M
Meddahi, Malika
Verdier, A
author_sort Brandt, D
collection CERN
description Several low emittance lattices have been proposed for LEP at its highest energies in order to reduce the horizontal beam size and bring the beam-beam limit within reach. However, optics with high phase advance per cell tend to have strong tune dependence on amplitude that can reduce the dynamic aperture and the beam lifetime, possibly limiting the maximum beam energy or creating operational difficulties. Recently an optics with a phase advance of 17p/30 in the horizontal and p/2 in the vertical plane was developed. This optics has a significantly smaller detuning with amplitude. The results of experiments on this optics are compared with expectations and some details of the first operational experience with this lattice are presented. The potential performance at maximum energy is discussed.
id cern-359897
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1998
record_format invenio
spelling cern-3598972023-05-05T13:07:24Zhttp://cds.cern.ch/record/359897engBrandt, DHerr, WernerJowett, John MLamont, MMeddahi, MalikaVerdier, AA Candidate Low Emittance Lattice for LEP at its Highest EnergiesAccelerators and Storage RingsSeveral low emittance lattices have been proposed for LEP at its highest energies in order to reduce the horizontal beam size and bring the beam-beam limit within reach. However, optics with high phase advance per cell tend to have strong tune dependence on amplitude that can reduce the dynamic aperture and the beam lifetime, possibly limiting the maximum beam energy or creating operational difficulties. Recently an optics with a phase advance of 17p/30 in the horizontal and p/2 in the vertical plane was developed. This optics has a significantly smaller detuning with amplitude. The results of experiments on this optics are compared with expectations and some details of the first operational experience with this lattice are presented. The potential performance at maximum energy is discussed.CERN-SL-98-030-APoai:cds.cern.ch:3598971998
spellingShingle Accelerators and Storage Rings
Brandt, D
Herr, Werner
Jowett, John M
Lamont, M
Meddahi, Malika
Verdier, A
A Candidate Low Emittance Lattice for LEP at its Highest Energies
title A Candidate Low Emittance Lattice for LEP at its Highest Energies
title_full A Candidate Low Emittance Lattice for LEP at its Highest Energies
title_fullStr A Candidate Low Emittance Lattice for LEP at its Highest Energies
title_full_unstemmed A Candidate Low Emittance Lattice for LEP at its Highest Energies
title_short A Candidate Low Emittance Lattice for LEP at its Highest Energies
title_sort candidate low emittance lattice for lep at its highest energies
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/359897
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