The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF 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. PB - JACoW 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 -