Modeling the Low Level RF Response on the Beam during Crab Cavity Quench

Apsimon, Robert and Burt, Graeme and Dexter, Amos and Appleby, Robert and Baudrenghien, Philippe and Sjobak, K. N. (2017) Modeling the Low Level RF Response on the Beam during Crab Cavity Quench. In: ipac 2017 Proceedings of the 8th International Particle Accelerator Conference :. JACoW. ISBN 9783954501823

Abstract

The High Lu­mi­nos­ity Up­grade for the LHC (HL-LHC) re­lies on crab cav­i­ties to com­pen­sate for the lu­mi­nos­ity re­duc­tion due to the cross­ing angle of the col­lid­ing bunches at the in­ter­ac­tion points. In this paper we pre­sent the sim­u­la­tion stud­ies of cav­ity quenches and the im­pact on the beam. The cav­ity volt­age and phase dur­ing the quench is de­ter­mined from a sim­u­la­tion in Mat­lab and used to de­ter­mine the im­pact on the beam from track­ing sim­u­la­tions in Six­Track. The re­sults of this study are im­por­tant for de­ter­min­ing the re­quired ma­chine pro­tec­tion and in­ter­lock sys­tems for HL-LHC.