MD on UFOs at MKIs and MKQs

UFOs ("Unidentified Falling Objects") are expected to be one of the major known performance limitation of the LHC. In this MD, the production mechanism and the dynamics of UFOs at the injection kicker magnets (MKIs) and the tune kicker magnets (MKQs) were studied. This was done by pulsing...

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Detalles Bibliográficos
Autores principales: Baer, T, Barnes, M, Bartmann, W, Bracco, C, Carlier, E, Dehning, B, Garrel, N, Goddard, B, Jackson, S, Jimenez, M, Kain, V, Mertens, V, Misiowiec, M, Nordt, A, Papotti, G, Uythoven, J, Wenninger, J, Zerlauth, M, Zamantzas, C, Zimmermann, F
Lenguaje:eng
Publicado: 2012
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/1421594
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author Baer, T
Barnes, M
Bartmann, W
Bracco, C
Carlier, E
Dehning, B
Garrel, N
Goddard, B
Jackson, S
Jimenez, M
Kain, V
Mertens, V
Misiowiec, M
Nordt, A
Papotti, G
Uythoven, J
Wenninger, J
Zerlauth, M
Zamantzas, C
Zimmermann, F
author_facet Baer, T
Barnes, M
Bartmann, W
Bracco, C
Carlier, E
Dehning, B
Garrel, N
Goddard, B
Jackson, S
Jimenez, M
Kain, V
Mertens, V
Misiowiec, M
Nordt, A
Papotti, G
Uythoven, J
Wenninger, J
Zerlauth, M
Zamantzas, C
Zimmermann, F
author_sort Baer, T
collection CERN
description UFOs ("Unidentified Falling Objects") are expected to be one of the major known performance limitation of the LHC. In this MD, the production mechanism and the dynamics of UFOs at the injection kicker magnets (MKIs) and the tune kicker magnets (MKQs) were studied. This was done by pulsing the MKIs and MKQs on a gap in the partly filled machine. During the MD, in total 58 UFO-type beam loss patterns were observed directly after pulsing the MKIs. None were observed after pulsing the MKQs, which provides important input for possible mitigation strategies. The temporal and spatial distribution of the UFO events could be determined by using a dedicated BLM Study Buffer, the implications for the UFO dynamics are discussed.
id cern-1421594
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
record_format invenio
spelling cern-14215942019-09-30T06:29:59Zhttp://cds.cern.ch/record/1421594engBaer, TBarnes, MBartmann, WBracco, CCarlier, EDehning, BGarrel, NGoddard, BJackson, SJimenez, MKain, VMertens, VMisiowiec, MNordt, APapotti, GUythoven, JWenninger, JZerlauth, MZamantzas, CZimmermann, FMD on UFOs at MKIs and MKQsAccelerators and Storage RingsUFOs ("Unidentified Falling Objects") are expected to be one of the major known performance limitation of the LHC. In this MD, the production mechanism and the dynamics of UFOs at the injection kicker magnets (MKIs) and the tune kicker magnets (MKQs) were studied. This was done by pulsing the MKIs and MKQs on a gap in the partly filled machine. During the MD, in total 58 UFO-type beam loss patterns were observed directly after pulsing the MKIs. None were observed after pulsing the MKQs, which provides important input for possible mitigation strategies. The temporal and spatial distribution of the UFO events could be determined by using a dedicated BLM Study Buffer, the implications for the UFO dynamics are discussed.CERN-ATS-Note-2012-018 MDoai:cds.cern.ch:14215942012-02-03
spellingShingle Accelerators and Storage Rings
Baer, T
Barnes, M
Bartmann, W
Bracco, C
Carlier, E
Dehning, B
Garrel, N
Goddard, B
Jackson, S
Jimenez, M
Kain, V
Mertens, V
Misiowiec, M
Nordt, A
Papotti, G
Uythoven, J
Wenninger, J
Zerlauth, M
Zamantzas, C
Zimmermann, F
MD on UFOs at MKIs and MKQs
title MD on UFOs at MKIs and MKQs
title_full MD on UFOs at MKIs and MKQs
title_fullStr MD on UFOs at MKIs and MKQs
title_full_unstemmed MD on UFOs at MKIs and MKQs
title_short MD on UFOs at MKIs and MKQs
title_sort md on ufos at mkis and mkqs
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/1421594
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