Beam-induced heat loads on the beam screens of the HL-LHC arcs

The heat load on the beam screens of cold magnets and drift sections in the HL-LHC arcs is estimated considering power deposition from impedance, synchrotron radiation and electron cloud. Estimates are given both for the standard 25ns scheme and for the 8b+4e backup scheme. These two...

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Detalles Bibliográficos
Autores principales: Skripka, Galina, Iadarola, Giovanni
Lenguaje:eng
Publicado: 2019
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/2692753
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author Skripka, Galina
Iadarola, Giovanni
author_facet Skripka, Galina
Iadarola, Giovanni
author_sort Skripka, Galina
collection CERN
description The heat load on the beam screens of cold magnets and drift sections in the HL-LHC arcs is estimated considering power deposition from impedance, synchrotron radiation and electron cloud. Estimates are given both for the standard 25ns scheme and for the 8b+4e backup scheme. These two beam structures can optionally be combined within the same filling scheme to find the best compromise between performance and heat load. For this purpose, a simple analytic model is derived, which allows determining the optimal share for a given target heat load.
id cern-2692753
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2019
record_format invenio
spelling cern-26927532019-10-09T21:52:55Zhttp://cds.cern.ch/record/2692753engSkripka, GalinaIadarola, GiovanniBeam-induced heat loads on the beam screens of the HL-LHC arcsAccelerators and Storage RingsThe heat load on the beam screens of cold magnets and drift sections in the HL-LHC arcs is estimated considering power deposition from impedance, synchrotron radiation and electron cloud. Estimates are given both for the standard 25ns scheme and for the 8b+4e backup scheme. These two beam structures can optionally be combined within the same filling scheme to find the best compromise between performance and heat load. For this purpose, a simple analytic model is derived, which allows determining the optimal share for a given target heat load.CERN-ACC-NOTE-2019-0041oai:cds.cern.ch:26927532019-10-08
spellingShingle Accelerators and Storage Rings
Skripka, Galina
Iadarola, Giovanni
Beam-induced heat loads on the beam screens of the HL-LHC arcs
title Beam-induced heat loads on the beam screens of the HL-LHC arcs
title_full Beam-induced heat loads on the beam screens of the HL-LHC arcs
title_fullStr Beam-induced heat loads on the beam screens of the HL-LHC arcs
title_full_unstemmed Beam-induced heat loads on the beam screens of the HL-LHC arcs
title_short Beam-induced heat loads on the beam screens of the HL-LHC arcs
title_sort beam-induced heat loads on the beam screens of the hl-lhc arcs
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/2692753
work_keys_str_mv AT skripkagalina beaminducedheatloadsonthebeamscreensofthehllhcarcs
AT iadarolagiovanni beaminducedheatloadsonthebeamscreensofthehllhcarcs

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