The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Jowett, J.M. AU - Auchmann, B. AU - Bahamonde Castro, C. AU - Kalliokoski, M.K. AU - Lechner, A. AU - Mertens, T. AU - Schaumann, M. AU - Xu, C. ED - Petit-Jean-Genaz, Christine ED - Kim, Dong Eon ED - Kim, Kyung Sook ED - Ko, In Soo ED - Schaa, Volker RW TI - Bound-Free Pair Production in LHC Pb-Pb Operation at 6.37 Z TeV per Beam J2 - Proc. of IPAC2016, Busan, Korea, May 8-13, 2016 C1 - Busan, Korea T2 - International Particle Accelerator Conference T3 - 7 LA - english AB - In the 2015 Pb-Pb collision run of the LHC, the power of the secondary beams emitted from the interaction point by the bound-free pair production process reached new levels while the propensity of the bending magnets to quench is higher at the new magnetic field levels. This beam power is about 70 times greater than that contained in the luminosity debris and is focussed on a specific location. As long foreseen, orbit bumps were introduced in the dispersion suppressors around the highest luminosity experiments to mitigate the risk by displacing and spreading out these losses. An experiment designed to induce quenches and determine the quench levels and luminosity limit was carried out to assess the need for special collimators to intercept these secondary beams. PB - JACoW CP - Geneva, Switzerland SP - 1497 EP - 1500 KW - luminosity KW - experiment KW - ion KW - dipole KW - simulation DA - 2016/06 PY - 2016 SN - 978-3-95450-147-2 DO - 10.18429/JACoW-IPAC2016-TUPMW028 UR - http://jacow.org/ipac2016/papers/tupmw028.pdf ER -