1. Booster Beam Notching Installation Update PIP Talk Salah Chaurize February 20, 2013

2. Notching Pre-Shutdown – A 3 bucket gap is created using two kickers located at Long 5 and Long 12 Notcher – A High Voltage(55kV) Kicker at Long 5 Noker - Lower Voltage Kicker (20-40 kV) at Long 12 – Used to clean out remnant Notched Beam in buckets At 700 MeV – Beam is kicked vertically into collimator region at Long 6 and Long 13 with upstream gradient magnets seeing some deposited notched beam loss. – The notch timing and synchronization is accomplished by modules in the Booster LLRF Room and local timing modules. – Beam notch for non-cogged cycles occurs at 400 Mev – Cogged notch occurs close to 700 MeV

3. Notching Post Shutdown – A 3 bucket gap is created using three 1M Long kickers located at Long 12 3 Notchers – High Voltage(46kV) Kicker at Long 12 Notcher converted to NOKA Noker converted to NOKB Build/Commission new NOKC. – Beam is kicked Horizontally into new absorber at Long 13 – The notch timing and synchronization is accomplished by modules in Booster LLRF Room. (Same as before) – Extra Wide Aperture BPM and Short Corrector Spool needed. – Beam notch for non-cogged cycles occurs at 400 Mev. (Same as before) – Cogged notch occurs close to 700 MeV. (Same as before)

4. The Notch 3 Bucket Notch Width non-cogged Cycle Notch @ 400MeV Cogged Cycle Notch @ ~700MeV Extraction Loss

5. L5 Notcher Current Location Notcher magnet will be moved to L12 Vertical Pinger magnet will be removed from L12 and put here in its placeNotcher Hor. Pinger

6. L5 Notcher Power supply components such as these Will need to be moved to support Long 12 region CX1168 tube Low Level equipment CX1168 tube cabinet

7. L12 Pre-shutdown De-commissioned Horz. Pinger Ver. Pinger Noker MKS04 Beam direction

8. L12 Post Shutdown NOKC MKS04 NOKB NOKA

9. Kicker magnets rotated to kick Horizontally

10. Kicker Magnet Beam tubes exposed for alignment

11. L12 Noker & Extraction Kicker MKS04 Power supply components such as these will need to be installed/relocated to support notch2 & notch3 in east Booster Gallery CX1168 tube cabinet Beam sync Modules and other NIM crate Support modules.

12. Make Room For 2 more systems In East Gallery

13. Current Configuration In East Gallery NOKA NOKB NOKC goes Here

14. Current Configuration In East Gallery Noker PS Charging Resistors and load resistors

15. Current Configuration In East Gallery NIM Gate Modules Altera Based CAMAC Controls and Ramp Cards LeCroy Delay modules & CAMAC Trigger

16. Current Configuration In East Gallery Absorber Motion Controls

17. Current Configuration In East Gallery NOKA NOKB NOKC MKS04

18. Long 13 Beam direction Before After Standing at downstream end of absorber

19. Long 13 Notched beam absorber Beam direction Before After

20. Long 13 New absorber

21. Looking upstream towards L13 30” 75” 10 ‘ Before After

22. Reason to redesign S12 Spool piece Need to kick beam horizontally at L12 with beam Nokers to create a notch in the beam. Current aperture restriction at S12 is BPM plates and upstream and down stream bellows which are all 4.5in.

23. Reason to redesign S12 Spool piece New Extra Wide aperture BPM will give us 5 in aperture with new spool. New spool would use some of original spool design without the standard BPM components inside and larger aperture bellows at magnet spool flanges

26. Extra Wide Aperture BPM

28. S12 Corrector Original Standard aperture 4.5 Inch

29. S12 Corrector New 5” Aperture Spool

30. Preliminary Results and Commissioning – Using 2 Nokers to create gap in beam at 400MeV – S12 New BPM giving data but needs some gain tweaks – Absorber motion controls working well. – Notched beam loss is currently low due to low intensity running but is as expected.

31. Preliminary Results and Commissioning

33. NOKA(CH1) & NOKB(CH2) Notched Bunches

34. Thanks to: - L13 Notched Beam Absorber Assembly- PPD Experiment Fabrication- L13 Absorber Build and Assembly D.Erickson, J. Judd, W. Blaszynski, W. Gatfield V. Sidorov - L13 Absorber Mechanical Design APC Energy Deposition Simulations by- N.Mokhov, I. Tropin, S.Drozhdin M. Coburn L13 Absorber Motion Controls -L12, S12, L13 Upgrade Support- Mechanical Support/ Instrumentation Groups – L13/S12 BPM and Corrector R. Reily, B. Ogert, J. Kubinski, J. Briney,D. Wallace, J. Fitzgerald Controls Group CAMAC modules Booster Techs - Power supply and load reconfiguration New timing module build and support electronics R. Mraz, T. Boes, D. Dick Operations - Database work, O. Marshall, R. Jones AMG-L12, S12,L13 alignment Radiation Safety – Joel Fulgham Consultation – J. Lackey, B. Pellico Machine Shop, Welding Shop Many More I missed