The beam coupling impedance could lead to limitations in beam brightness and quality, and therefore it needs accurate quantification and continuous monitoring in order to detect and mitigate high impedance sources. In the CERN machines, for example, kickers and collimators are expected to be important contributors to the total imaginary part of the transverse impedance. In order to detect the other sources, a beam based measurement was developed: from the variation of betatron phase beating with intensity, it is possible to detect the locations of main impedance sources. In this work we present the application of the method with beam measurements in the CERN PS, SPS and LHC.
Beam coupling impedance localization technique validation and measurements in the cern machines / Biancacci, Nicolò; G., Arduini; T., Argyropoulos; H., Bartosik; R., Calaga; K., Cornelis; S., Gilardoni; E. M., ́etral; E., Metral; N., Mounet; Y., Papaphilippou; S., Persichelli; G., Rumolo; B., Salvant; G., Sterbini; R., Tom As; R., Tomas; R., Wasef; Migliorati, Mauro; Palumbo, Luigi. - (2013), pp. 3106-3108. (Intervento presentato al convegno 4th International Particle Accelerator Conference, IPAC 2013 tenutosi a Shanghai nel 12 May 2013 through 17 May 2013).
Beam coupling impedance localization technique validation and measurements in the cern machines
BIANCACCI, NICOLÒ;MIGLIORATI, Mauro;PALUMBO, Luigi
2013
Abstract
The beam coupling impedance could lead to limitations in beam brightness and quality, and therefore it needs accurate quantification and continuous monitoring in order to detect and mitigate high impedance sources. In the CERN machines, for example, kickers and collimators are expected to be important contributors to the total imaginary part of the transverse impedance. In order to detect the other sources, a beam based measurement was developed: from the variation of betatron phase beating with intensity, it is possible to detect the locations of main impedance sources. In this work we present the application of the method with beam measurements in the CERN PS, SPS and LHC.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
