1. PSB extraction and transfer kickers 01/10/2014 LIU-PS ABT review1 L. Ducimetière, L. Sermeus

2. Contents Kickers involved Specifications Work to be done Planning Budget and Manpower 01/10/2014 LIU-PS ABT review2

3. KICKERS INVOLVED Extraction BE.KFA14L1 Transfer BT1.KFA10, BT4.KFA10 & BT2.KFA20 01/10/2014 LIU-PS ABT review3 extraction transfer

4. Extraction BE.KFA14L1 01/10/2014 LIU-PS ABT review4 1 vacuum tank installed in ~1970 16 magnets (4 per ring) designed for 800 MeV beam deflection No spare All magnets have been refurbished in 2000 for the 1.4 GeV upgrade. The poor quality glued original ferrite blocks have been replaced by C shaped ones of 8C11 type.

5. Extraction BE.KFA14L1 01/10/2014 LIU-PS ABT review5 1 generator per ring supplies for magnets in parallel (magnets are in short-circuit mode) PFL made of 4×25 W SF 6 cables in // Transmission cables same type as PFL Maximum design voltage 60 kV (current 9600 A in thyratron given for 8 kA) Pulse length ~1600 ns (fixed) Installed in 2000

6. Transfer BT.KFA10 01/10/2014 LIU-PS ABT review6 1 vacuum tank installed in ~1970 4 magnets (2 per ring 2&3) designed for 800 MeV beam deflection Glued ferrite C cores of unknown type (could be 8C1, 4L1 or 4H1) No spare

7. Transfer BT.KFA10 01/10/2014 LIU-PS ABT review7 1 generator per ring supplies two magnets in parallel (magnets are in short-circuit mode) PFL made of 4×25 W SF 6 cables in // Transmission cables same type as PFL Maximum design voltage 60 kV (current 9600 A in thyratron given for 8 kA max) Pulse length ~1600 ns (fixed) Installed in 1999

8. Transfer BT2.KFA20 01/10/2014 LIU-PS ABT review8 1 vacuum tank refurbished in 2000 2 magnets designed for 800 MeV beam deflection (same as BT.KFA10 ones) 1 fully operational spare exists Ferrite type is CMD5005

9. Transfer BT2.KFA20 01/10/2014 LIU-PS ABT review9 1 generator (magnets are charged with the PFL) PFL made of 4×25 W SF 6 cables in // Transmission cables same type as PFL Maximum design voltage 37 kV (magnet breakdown if higher) Pulse length ~3000 ns (fixed)

10. Specifications Beam energy increase from 1.4 GeV to 2 GeV. No other modification required. Is it still right? What does it mean? Magnet currents have to be increased by 30 % and consequently PFL voltages. (Note: it’s 46 % more than the original specification at 800 MeV) 01/10/2014 LIU-PS ABT review10

11. Work to be done: BE.KFA14L1 1. Measure the kick linearity from present operating voltage 42.5 kV to the required 55 kV. (to be done on similar magnets installed in modified 2L1 tank in B867) The field in the ferrite of the end cells is expected to be 10 % higher than the saturating field. This measurement will impact tasks 4 & 5. Problem: the test generator is not operational yet in cage SAL5. 2. Make CATIA 3D models and 2D drawings of the present vacuum tank, magnets, connection boxes. Job given to EN-MME and expected to be finished end of October 2014 3. Study and modify existing magnet design to increase the ferrite cross sectional area in order to avoid saturation. Not started yet 4. Upgrade/update drawings and build a spare tank equipped with new magnets, test it in B867 and install it in the PSB. Not started yet (installation not necessary if kick linearity of present tank ok) 5. Refurbish the old tank to have a full spare Can only start after LS2 (Not necessary if kick linearity ok) 01/10/2014 LIU-PS ABT review11

12. Work to be done: BT.KFA10 1. Make CATIA 3D models and 2D drawings of the present vacuum tank, magnets, connection boxes. Job given to EN-MME and expected to be finished end of February 2015 2. Build a spare tank equipped with new magnets (with new ferrite blocks), test it in B867 and install it in the PSB Not started yet 3. Refurbish the old tank to have a full spare Can only start after LS2 01/10/2014 LIU-PS ABT review12

13. Work to be done: BT2.KFA20 No change has been foreseen for this kicker. It has to be noted that voltage conditioning will be necessary in the future. In case of magnet breakdown problems, a system configuration like BT.KFA10 will have to be adopted. 01/10/2014 LIU-PS ABT review13 Present operation voltage is 28 kV. At 2 GeV, the required voltage will be 36.4 kV, near the maximum of 37 kV.

14. Planning (BE.KFA14L1) 1. Measure the kick linearity of extraction magnets Problem: the test generator is not operational yet in cage SAL5. Must be done before the end of the year. -FPS has still to connect transmission cables. -EC has to terminate cabling work and test PDC (or use PS type Power Control to save time). 2. Make CATIA 3D models and 2D drawings of the present vacuum tank, magnets, connection boxes. Job given to EN-MME and expected to be finished end of October 2014. 3. Check drawings from MME. Study and modify existing magnet design to increase the ferrite cross sectional area in order to avoid saturation. Not started yet. Must be finished by mid 2015 in order to redesign the tank. 4. Upgrade/update drawings (discussion with TE/VSC needed) and build a spare tank equipped with new magnets, test it in B867 and install it in the PSB. Not started yet. All drawings must be available end of 2015. Production must start in 2015 and all components must be at Cern by end 2016. Magnet and tank assembly up to mid 2017. Tests from mid 2017 to mid 2018. 5. Installation in PSB: from mid 2018 to mid 2019 6. Refurbish the old tank to have a full spare Can only start after LS2 01/10/2014 LIU-PS ABT review14

15. Planning (BT.KFA10) 1. Make CATIA 3D models and 2D drawings of the present vacuum tank, magnets, connection boxes. Job given to EN-MME and expected to be finished end of February 2015. 2. Check drawings from MME and update if necessary. Discussion with TE/VSC needed. Not started yet. Must be finished by autumn 2015. 3. Order a spare tank equipped with new magnets (with new ferrite blocks), test it in B867 and install it in the PSB. Not started yet. Production must start in autumn 2015 and all components must be at Cern by mid 2016. Magnet and tank assembly up to end 2016. Tests from January to mid 2017. 4. Installation in PSB: from mid 2018 to mid 2019 5. Refurbish the old tank to have a full spare Can only start after LS2. 01/10/2014 LIU-PS ABT review15

16. Budget and Manpower BE.KFA14L1 Budget : 1.395 MCHF Manpower: 4.3 man.year 01/10/2014 LIU-PS ABT review16 APT NodeLIU-PSB 10.2 – Extraction and Transfer Line Equipment DescriptionManufacture and commission KFA14 APT wu91896 Wu responsible l.ducimetiere@cern.ch Budget code65743 Year20132014201520162017201820192020 PV 8564464610 EV 9 New PV

17. Budget and Manpower BT.KFA10 Budget : 754 kCHF Manpower: 3.3 man.year 01/10/2014 LIU-PS ABT review17 APT NodeLIU-PSB 10.2 – Extraction and Transfer Line Equipment DescriptionManufacture and commission KFA10 APT wu91897 Wu responsible l.ducimetiere@cern.ch Budget code65743 Year20132014201520162017201820192020 PV 6030337110 EV 4 New PV

18. Budget and Manpower TOTAL Budget : 2.149 MCHF Manpower: 7.6 man.year 01/10/2014 LIU-PS ABT review18 DescriptionKickers PSB APT wus91896, 91897 Wu responsible l.ducimetiere@cern.ch Budget codes65743 Year20132014201520162017201820192020 PV 0 145947101720 EV 0 13 AC 038 New PV

19. Budget and Manpower Are resources sufficient? The budget looks ok to FPS. The manpower requirements have been estimated assuming that people with experience are used. As the same people are involved in many other FPS projects and maintenance tasks, it will not be possible to achieve all the tasks in parallel and delays must be expected. 01/10/2014 LIU-PS ABT review19