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Observations, Analysis and Mitigation of Recurrent LHC Beam Dumps Caused by Fast Losses in Arc Half-Cell 16L2
Recurrent beam dumps significantly perturbed the operation of the CERN LHC in the summer months of 2017, especially in August. These unexpected beam dumps were triggered by fast beam losses that built up in the cryogenic beam vacuum at the half-cell 16 left of LHC-IP2 and were detected either at tha...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2018
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.18429/JACoW-IPAC2018-MOPMF053 http://cds.cern.ch/record/2646067 |
| _version_ | 1780960472145592320 |
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| author | Jimenez, José Amorim, David Antipov, Sergey Arduini, Gianluigi Bertarelli, Alessandro Biancacci, Nicolo Bradu, Benjamin Bravin, Enrico Bregliozzi, Giuseppe Brodzinski, Krzysztof Bruce, Roderik Buffat, Xavier Carver, Lee Chiggiato, Paolo Claudet, Serge Collier, Paul Garcia Alia, Ruben Giovannozzi, Massimo Gorzawski, Arkadiusz Grob, Laura Holzer, Eva Barbara Höfle, Wolfgang Iadarola, Giovanni Kotzian, Gerd Lechner, Anton Levens, Thomas Lindstrom, Bjorn Medvedeva, Tatiana Mether, Lotta Milanese, Attilio Mirarchi, Daniele Métral, Elias Perini, Diego Redaelli, Stefano Rumolo, Giovanni Salvant, Benoit Schmidt, Ruediger Valette, Matthieu Valuch, Daniel Wenninger, Jorg Wollmann, Daniel Yin Vallgren, Christina Zamantzas, Christos Zerlauth, Markus |
| author_facet | Jimenez, José Amorim, David Antipov, Sergey Arduini, Gianluigi Bertarelli, Alessandro Biancacci, Nicolo Bradu, Benjamin Bravin, Enrico Bregliozzi, Giuseppe Brodzinski, Krzysztof Bruce, Roderik Buffat, Xavier Carver, Lee Chiggiato, Paolo Claudet, Serge Collier, Paul Garcia Alia, Ruben Giovannozzi, Massimo Gorzawski, Arkadiusz Grob, Laura Holzer, Eva Barbara Höfle, Wolfgang Iadarola, Giovanni Kotzian, Gerd Lechner, Anton Levens, Thomas Lindstrom, Bjorn Medvedeva, Tatiana Mether, Lotta Milanese, Attilio Mirarchi, Daniele Métral, Elias Perini, Diego Redaelli, Stefano Rumolo, Giovanni Salvant, Benoit Schmidt, Ruediger Valette, Matthieu Valuch, Daniel Wenninger, Jorg Wollmann, Daniel Yin Vallgren, Christina Zamantzas, Christos Zerlauth, Markus |
| author_sort | Jimenez, José |
| collection | CERN |
| description | Recurrent beam dumps significantly perturbed the operation of the CERN LHC in the summer months of 2017, especially in August. These unexpected beam dumps were triggered by fast beam losses that built up in the cryogenic beam vacuum at the half-cell 16 left of LHC-IP2 and were detected either at that location but mainly in the collimation insertions. This contribution details the experimental observables (beam losses, coherent instabilities, heat load to cryogenic system, vacuum signals), the extent of the understanding of the beam loss and instability mechanisms and the mitigation steps and new settings that allowed recovering the luminosity performance of the LHC for the rest of the Run. |
| id | oai-inspirehep.net-1691342 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2018 |
| record_format | invenio |
| spelling | oai-inspirehep.net-16913422019-09-30T06:29:59Zdoi:10.18429/JACoW-IPAC2018-MOPMF053http://cds.cern.ch/record/2646067engJimenez, JoséAmorim, DavidAntipov, SergeyArduini, GianluigiBertarelli, AlessandroBiancacci, NicoloBradu, BenjaminBravin, EnricoBregliozzi, GiuseppeBrodzinski, KrzysztofBruce, RoderikBuffat, XavierCarver, LeeChiggiato, PaoloClaudet, SergeCollier, PaulGarcia Alia, RubenGiovannozzi, MassimoGorzawski, ArkadiuszGrob, LauraHolzer, Eva BarbaraHöfle, WolfgangIadarola, GiovanniKotzian, GerdLechner, AntonLevens, ThomasLindstrom, BjornMedvedeva, TatianaMether, LottaMilanese, AttilioMirarchi, DanieleMétral, EliasPerini, DiegoRedaelli, StefanoRumolo, GiovanniSalvant, BenoitSchmidt, RuedigerValette, MatthieuValuch, DanielWenninger, JorgWollmann, DanielYin Vallgren, ChristinaZamantzas, ChristosZerlauth, MarkusObservations, Analysis and Mitigation of Recurrent LHC Beam Dumps Caused by Fast Losses in Arc Half-Cell 16L2Accelerators and Storage RingsRecurrent beam dumps significantly perturbed the operation of the CERN LHC in the summer months of 2017, especially in August. These unexpected beam dumps were triggered by fast beam losses that built up in the cryogenic beam vacuum at the half-cell 16 left of LHC-IP2 and were detected either at that location but mainly in the collimation insertions. This contribution details the experimental observables (beam losses, coherent instabilities, heat load to cryogenic system, vacuum signals), the extent of the understanding of the beam loss and instability mechanisms and the mitigation steps and new settings that allowed recovering the luminosity performance of the LHC for the rest of the Run.CERN-ACC-2018-164oai:inspirehep.net:16913422018 |
| spellingShingle | Accelerators and Storage Rings Jimenez, José Amorim, David Antipov, Sergey Arduini, Gianluigi Bertarelli, Alessandro Biancacci, Nicolo Bradu, Benjamin Bravin, Enrico Bregliozzi, Giuseppe Brodzinski, Krzysztof Bruce, Roderik Buffat, Xavier Carver, Lee Chiggiato, Paolo Claudet, Serge Collier, Paul Garcia Alia, Ruben Giovannozzi, Massimo Gorzawski, Arkadiusz Grob, Laura Holzer, Eva Barbara Höfle, Wolfgang Iadarola, Giovanni Kotzian, Gerd Lechner, Anton Levens, Thomas Lindstrom, Bjorn Medvedeva, Tatiana Mether, Lotta Milanese, Attilio Mirarchi, Daniele Métral, Elias Perini, Diego Redaelli, Stefano Rumolo, Giovanni Salvant, Benoit Schmidt, Ruediger Valette, Matthieu Valuch, Daniel Wenninger, Jorg Wollmann, Daniel Yin Vallgren, Christina Zamantzas, Christos Zerlauth, Markus Observations, Analysis and Mitigation of Recurrent LHC Beam Dumps Caused by Fast Losses in Arc Half-Cell 16L2 |
| title | Observations, Analysis and Mitigation of Recurrent LHC Beam Dumps Caused by Fast Losses in Arc Half-Cell 16L2 |
| title_full | Observations, Analysis and Mitigation of Recurrent LHC Beam Dumps Caused by Fast Losses in Arc Half-Cell 16L2 |
| title_fullStr | Observations, Analysis and Mitigation of Recurrent LHC Beam Dumps Caused by Fast Losses in Arc Half-Cell 16L2 |
| title_full_unstemmed | Observations, Analysis and Mitigation of Recurrent LHC Beam Dumps Caused by Fast Losses in Arc Half-Cell 16L2 |
| title_short | Observations, Analysis and Mitigation of Recurrent LHC Beam Dumps Caused by Fast Losses in Arc Half-Cell 16L2 |
| title_sort | observations, analysis and mitigation of recurrent lhc beam dumps caused by fast losses in arc half-cell 16l2 |
| topic | Accelerators and Storage Rings |
| url | https://dx.doi.org/10.18429/JACoW-IPAC2018-MOPMF053 http://cds.cern.ch/record/2646067 |
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