1. 1 M. Popovic NFMC Collaboration Meeting IIT Muon (Pre)Acceleration for 8 GeV Proton Driver Linac Milorad Popovic http://www-popovic.fnal.gov/ FNAL 14-March 2006

2. 2 M. Popovic Initial: 0.5 MW Linac Beam Power (BASELINE) 8.3 mA x 3 msec x 2.5 Hz x 8 GeV = 0.5 MW Twelve Klystrons Required Ultimate: 2 MW Linac Beam Power 25 mA x 1 msec x 10 Hz x 8 GeV = 2.0 MW 33 Klystrons Required Either Option Supports: 1.5E14 protons/pulse Using Main Injector or Recycler as storage ring Assuming 1% Muon collection, there will be 25mA 10 uS Muon pulse that 7 GeV Linac can accelerate Two Design Points for 8 GeV Linac

3. 3 M. Popovic SC H- Linac from 1.2 to 8GeV

4. 4 M. Popovic Linac +Return Arcs

5. 5 M. Popovic 25mm-mrad Norm RMS

6. 6 M. Popovic Paper from Linac2000 XX International Linac Conference, Monterey, California 2GeV SUPERCONDUCTING MUON LINAC Milorad Popovic Fermi National Accelerator Laboratory Batavia, IL 60510, USA Abstract A muon collider as well as a neutrino factory requires a large number of muons with a kinetic energy of 50GeV or more. Muon survival demands a high gradient linac. The large transverse and longitudinal emittance of the muon beam coming from a muon cooling system implies the need for a large acceptance, acceleration system. These two requirements point clearly to a linac based on superconducting technology. The design of a 2GeV Superconducting muon Linac based on computer programs developed at LANL will be presented. The design is based on the technology available today or components that will be available in the very near future.

7. 7 M. Popovic 325MHz 3-Cell SCavity Cavity R=45cm, Bore R=20cm, External pipe 40cm Energy Gain 21 MeV/Cavity Phase Ramp from -40 to -5 Degree

8. 8 M. Popovic FODO CELL Cell Length =2*271cm, Magnet Length =35cm Quad Gradient from 100 to 200 Gauss/cm

9. 9 M. Popovic X,Y, Phys Beam Envelopes

10. 10 M. Popovic Transverse Emittance Study II, Transverse Beam Emittance, 3mm, 1 , Normalized 3000 mm-mrad Beam size; 200mrad, 10mm,  @ 200MeV/c Muons Inc, Transverse Beam Emittance, 3 mm-mrad, 2 , Normalized Beam size; 2mrad, 1mm,  @ 200MeV/c This is really acceptance of the channel, emittance should be specified after energy is known. Cryo module, ~5 meters, 325MHz

11. 11 M. Popovic Emittances, Parmila cell ngood plane emittance (cm-mrad),(deg-MeV) alpha beta(u) rms(u) max 100% 90% rms(n) (cm/mrad), x or y x or y deg/MeV) (cm) (cm) Input Beam 0 10000 x-xp 702.90313 542.81085 134.44371 -0.00159 0.150000 3.4641 7.6438 y-yp 699.41044 536.46265 134.43337 0.28745 0.804460 8.0220 17.8884 phi-w 264.30970 202.06476 49.99906 0.00635 2.50005711.1804 0.0000 Out Beam 130 10000 x-xp 918.97732 562.67982 137.82525 -0.11259 1.710652 4.7150 11.7815 y-yp 798.94995 536.80035 134.96394 -0.03086 1.221081 3.9420 9.0929 phi-w 318.41574 205.29719 50.75104 0.07731 0.476035 4.9152 0.0000

12. 12 M. Popovic Input & Output Beam, Parmila x-y phi-W Beam Out of First Cavity x-x’ y-y’ Output Beam x-x’ y-y’ x-y phi-W

13. 13 M. Popovic Transverse Emittance Study II, Transverse Beam Emittance, 3mm, 1 , Normalized 3000 mm-mrad Beam size; 200mrad, 10mm,  @ 200MeV/c Muons Inc, Transverse Beam Emittance, 3 mm-mrad, 2 , Normalized Beam size; 2mrad, 1mm,  @ 200MeV/c This is really acceptance of the channel, emittance should be specified after energy is known. For the Cryo module as it is now, 12meters, 1.3GHz

14. 14 M. Popovic FESS Favorite Proton Linac Site

15. 15 M. Popovic 8 GeV Linac Main Injector @2 MW 600MeV 1.2GeV 8GeV

16. 16 M. Popovic Study II, Cost Estimates

17. 17 M. Popovic NuFact05, Frascati

18. 18 M. Popovic Recirculation, 21GeV Muons  Linac Beta=1 is 36*14=504 meters~1.7us  Pick Current <= 45 mA  10 12 Muons in 3.5usec pulse, 1.3GHz  Second Linac in Return Line in Future  Arks are R~50 meters  Lattice is FODO like in Linac

19. 19 M. Popovic Arc Lattice, Disp~0.0

20. 20 M. Popovic B. Foster’s Numbers Total:Proton Linac, 8GeV $361M

21. 21 M. Popovic Linac

22. 22 M. Popovic One Cryo Module

23. 23 M. Popovic 8 GeV Superconducting Linac With X-Ray FEL, 8 GeV Neutrino & Spallation Sources, LC and Neutrino Factory ~ 700m Active Length 8 GeV Linac X-RAY FEL LAB 8 GeV neutrino Main Injector @2 MW Anti- Proton SY-120 Fixed- Target Neutrino “Super- Beams” NUMI Off- Axis & Long-Pulse Spallation Source? Neutrino Target Neutrinos to “Homestake” Short Baseline Detector Array Target and Muon Cooling Channel Bunching Ring Recirculating Linac for Neutrino Factory VLHC at Fermilab Damping Rings for TESLA @ FNAL With 8 GeV e+ Preacc. 1% LC Systems Test

24. 24 M. Popovic Extra

25. 25 M. Popovic Extra

26. 26 M. Popovic Booster Like Storage Ring & Arks

27. 27 M. Popovic Cell with Injection

28. 28 M. Popovic Beta=0.81, Drift, Beta=1

29. 29 M. Popovic Pillbox Cavity U_bunch[Joul]=5 [m]*Eo[MV/m]*Nb[10 10 ]*10 -4