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RIS citation export for WEPMW028: First Attempts at using Active Halo Control at the LHC

AU - Wagner, J.F.
AU - Bruce, R.
AU - Garcia Morales, H.
AU - Höfle, W.
AU - Kotzian, G.
AU - Kwee-Hinzmann, R.
AU - Langner, A.
AU - Mereghetti, A.
AU - Quaranta, E.
AU - Redaelli, S.
AU - Rossi, A.
AU - Salvachua, B.
AU - Stancari, G.
AU - Tomás, R.
AU - Valentino, G.
AU - Valuch, D.
ED - Petit-Jean-Genaz, Christine
ED - Kim, Dong Eon
ED - Kim, Kyung Sook
ED - Ko, In Soo
ED - Schaa, Volker RW
TI - First Attempts at using Active Halo Control at the LHC
J2 - Proc. of IPAC2016, Busan, Korea, May 8-13, 2016
C1 - Busan, Korea
T2 - International Particle Accelerator Conference
T3 - 7
LA - english
AB - The beam halo population is a non-negligible factor for the performance of the LHC collimation system and the machine protection. In particular this could become crucial for aiming at stored beam energies of 700 MJ in the High Luminosity (HL-LHC) project, in order to avoid beam dumps caused by orbit jitter and to ensure safety during a crab cavity failure. Therefore several techniques to safely deplete the halo, i.e. active halo control, are under development. In a first attempt a novel way for safe halo depletion was tested with particle narrow-band excitation employing the LHC Transverse Damper (ADT). At an energy of 450 GeV a bunch selective beam tail scraping without affecting the core distribution was attempted. This paper presents the first measurement results, as well as a simple simulation to model the underlying dynamics.
CP - Geneva, Switzerland
SP - 2486
EP - 2489
KW - emittance
KW - simulation
KW - controls
KW - collimation
KW - electron
DA - 2016/06
PY - 2016
SN - 978-3-95450-147-2
DO - 10.18429/JACoW-IPAC2016-WEPMW028
UR - http://jacow.org/ipac2016/papers/wepmw028.pdf
ER -