CERN Accelerating science

Published Articles
Title	Beam induced RF heating
Author(s)	Salvant, B (CERN) ; Aberle, O (CERN) ; Arduini, G (CERN) ; Assmann, R (CERN) ; Baglin, V (CERN) ; Barnes, M J (CERN) ; Bartmann, W (CERN) ; Baudrenghien, P (CERN) ; Berrig, O (CERN) ; Bracco, C (CERN) ; Bravin, E (CERN) ; Bregliozzi, G (CERN) ; Bruce, R (CERN) ; Bertarelli, A (CERN) ; Carra, F (CERN) ; Cattenoz, G (CERN) ; Caspers, F (CERN) ; Claudet, S (CERN) ; Day, H (CERN) ; Garlasche, M (CERN) ; Gentini, L (CERN) ; Goddard, B (CERN) ; Grudiev, A (CERN) ; Henrist, B (CERN) ; Jones, R (CERN) ; Kononenko, O (CERN) ; Lanza, G (CERN) ; Lari, L (CERN) ; Mastoridis, T (CERN) ; Mertens, V (CERN) ; Métral, E (CERN) ; Mounet, N (CERN) ; Muller, J E (CERN) ; Nosych, A A (CERN) ; Nougaret, J L (CERN) ; Persichelli, S (CERN) ; Piguiet, A M (CERN) ; Redaelli, S (CERN) ; Roncarolo, F (CERN) ; Rumolo, G (CERN) ; Salvachua, B (CERN) ; Sapinski, M (CERN) ; Schmidt, R (CERN) ; Shaposhnikova, E (CERN) ; Tavian, L (CERN) ; Timmins, M (CERN) ; Uythoven, J (CERN) ; Vidal, A (CERN) ; Wenninger, J (CERN) ; Wollmann, D (CERN) ; Zerlauth, M (CERN)
Publication	Geneva : CERN, 2012
Number of pages	10
In:	4th Evian Workshop on LHC beam operation, Evian-les-Bains, France, 17 - 20 Dec 2012, pp.109-118
Subject category	Accelerators and Storage Rings
Accelerator/Facility, Experiment	CERN LHC
Abstract	After the 2011 run, actions were put in place during the 2011/2012 winter stop to limit beam induced radio frequency (RF) heating of LHC components. However, some components could not be changed during this short stop and continued to represent a limitation throughout 2012. In addition, the stored beam intensity increased in 2012 and the temperature of certain components became critical. In this contribution, the beam induced heating limitations for 2012 and the expected beam induced heating limitations for the restart after the Long Shutdown 1 (LS1) will be compiled. The expected consequences of running with 25 ns or 50 ns bunch spacing will be detailed, as well as the consequences of running with shorter bunch length. Finally, actions on hardware or beam parameters to monitor and mitigate the impact of beam induced heating to LHC operation after LS1 will be discussed.

Corresponding record in: Inspire