MD 2935: 16L2 solenoid tests

Autor: Salvant, Benoit, Albert, Markus, Arduini, Gianluigi, Buffat, Xavier, Collier, Paul, Gorzawski, Arkadiusz, Grob, Laura Katharina, Iadarola, Giovanni, Lechner, Anton, Levens, Tom, Lindstrom, Bjorn Hans Filip, Mether, Lotta, Metral, Elias, Mirarchi, Daniele, Solfaroli Camillocci, Matteo, Timko, Helga, Valette, Matthieu, Valuch, Daniel, Wollmann, Daniel, Yin Vallgren, Christina

This MD allowed confirming that the solenoid installed in 16L2 during Technical Stop 2 (TS22017) could be held responsible for the performance improvement observed after TS2. The MD was performed on 30th November 2017 in parallel with MD#2889 and the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od________65::1a46ce4eee1f0025741dc644356b5964
http://cds.cern.ch/record/2722451

MD#2889: 16L2 Event Dynamics and UFO Nature Investigation

Autor: Lindstrom, Bjorn Hans Filip, Apollonio, Andrea, Dziadosz, Martyna, Gorzawski, Arkadiusz, Grob, Laura Katharina, Holzer, Eva Barbara, Lechner, Anton, Medvedeva, Tatiana, Schmidt, Rudiger, Valette, Matthieu, Wollmann, Daniel, Belanger, Philippe

Micrometer sized particles (UFOs) entering the beam are a known cause of localized beam losses since the beginning of high intensity beam operation, however the origin of these particles is not fully known. Furthermore, during 2017 a new type of UFO

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od________65::bcb80e98ffb99af6fbb67f7b05ff39b0
http://cds.cern.ch/record/2658112

Observations, Analysis and Mitigation of Recurrent LHC Beam Dumps Caused by Fast Losses in Arc Half-Cell 16L2

Autor: 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

Publikováno v: 9th International Particle Accelerator Conference
9th International Particle Accelerator Conference, Apr 2018, Vancouver, Canada. pp.MOPMF053, ⟨10.18429/JACoW-IPAC2018-MOPMF053⟩

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

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82e3c156b868e9cea24dcd69cb5894a9
https://hal.archives-ouvertes.fr/hal-01871996

Beam Loss Measurements for Recurring Fast Loss Events During 2017 LHC Operation Possibly Caused by Macroparticles

Autor: Lechner, Anton, Auchmann, Bernhard, Bravin, Enrico, Gorzawski, Arkadiusz, Grob, Laura, Holzer, Eva Barbara, Lindstrom, Bjorn, Medvedeva, Tatiana, Mirarchi, Daniele, Schmidt, Ruediger, Valette, Matthieu, Wollmann, Daniel

The availability of the LHC machine was adversely affected in 2017 by tens of beam aborts provoked by frequent loss events in one standard arc cell (16L2). In most of the cases, the dumps were triggered by concurrently developing fast beam instabilit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::464da2e350f187333df0a22f5c7d9e22
http://cds.cern.ch/record/2666546