LIU PS TFB system Status and outlook G

LIU PS TFB system Status and outlook G. Kotzian, LIU-PS-ADT, 12/06/2018 https: //indico. cern. ch/event/735662/

Existing Situation [1] G. Sterbini, A. Blas, and S. Gilardoni, “BEAM-BASED PERFORMANCE OF THE CERN PS TRANSVERSE FEEDBACK”, in Proc. HB 2014, East-Lansing, MI, USA, November 2014. • After LS 2 the beam injection energy in the PS will increase from 1. 4 Ge. V to 2 Ge. V. • In order to damp potential beam trajectory errors at injection (up to +/- 3 mm) within a millisecond, the transverse kicker needs to be supplied with 5 k. W of RF power per electrode (4 x 5 k. W total), to avoid an increase in transverse emittance due to filamentation [1]. • The present setup, delivering only 3 k. W peak during 2 ms and 800 W CW, needs thus to be upgraded. • The transverse feedback system is presently located in room 355/R-017, which cannot host the new equipment. • Another room needs thus to be found near the equipment in the PS ring (pick-ups in SS 98/SS 02 and kicker in SS 97) as a short distance benefits the efficiency and robustness of the system. • Room 355/R-009 was found to offer a good potential as there is space available for new racks and it is only 18 meters away from the present equipment, which satisfies the signal delay constraints.

5 k. W RF amplifier per kicker electrode

Bill-of-Material for 5 k. W RF amplifier 230 V / 400 V Demineralized Water 1. 25 l/min Amplifier Rack 1 PLC Remote Control RF ON RF OFF BOM (per 5 k. W): • 2 x Standard Racks, 19 -inch/42 U • 400 V / 20 k. W distribution • 2 x 1. 25 l/min demineralized water • Signal cable extensions • PLC control / remote operation x 4 ( = one per electrode) Amplifier Rack 2 Demineralized Water 1. 25 l/min

Integration study by A. Kosmicki (2018/04/03) Taken from: A. Kosmicki https: //edms. cern. ch/file/1394535/1/20180403_0355_Racks_TFB. pptx Integration: ST 0793486_01 R-017 R-021 0355 R-009 R-003 Rack to be removed Location of the future water distribution Main entrance • Demande de 10 nouveaux racks TFB ici (en rouge) 1+6+3 • L’ancien rack WIC glisse en face de l’autre pour laisser la place a 6 racks TFB dans cette rangée. edms # 1394535 _A. Kosmicki_20180403

Taken from: A. Kosmicki https: //edms. cern. ch/file/1394535/1/20180403_0355_Racks_TFB. pptx Cooling and demineralized water supply Maria Esther Amarilla Garcia (18/05/2018): • Current PS TFB in 355/R-017 connected to LEIR/LINAC 2 -3 should be avoided. • Request of 600 l/h included in the PS demi loop • Some civil work would be needed to go through the walls. NB: Distribution manifold similar to existing PSB TFB. Cet équipement CV sera démonté “HORIZONTAL INSIDE” “HORIZONTAL OUTSIDE” “VERTICAL TOP” “VERTICAL BOTTOM”

https: //edms. cern. ch/document/1954394/0. 1 ECR: “Installation of the new PS Transverse Feedback in Building 355/R-009” Room 355/R-009 needs to be prepared for hosting the electronic equipment of the post-LS 2 PS transverse feedback system: PLAN ID: 11615 • Installation of 9 news racks • Installation of a 10 litres/min demineralized water supply source M. E. Amarilla Garcia, EN/CV • Installation of a 80 k. W - 400 V / 3 phase and 230 V electrical distribution A. Floriduz, EN/EL • Installation of 4 amplifiers 5 k. W with their attached driver, combiners, power supplies BE/RF • Installation of a PLC system for slow control and remote operation L. Arnaudon, BE/RF/CS • Installation of signal cable extensions to-and-from room 355/R-017 RQF 0970733: DIC, RQF 0971902: DIF RQF 0976871: DIR; Integration study by A. Kosmicki, EN/ACE

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