1. Muon Acceleration using 8 GeV Proton Driver Linac
Test
NuFact05
Muon Acceleration using
8 GeV Proton Driver Linac
Milorad Popovic
Rome, Italy, 24-June-05
M. Popovic

2. Study II, Cost Estimates
M. Popovic

3. 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.
M. Popovic

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

5. The Baseline Mission: 8 GeV H- Injection and Super Beams in the Main Injector
Neutrino
“Super-
Beams”
NUMI
Off-
Axis
SY-120
Fixed-Target
8 GeV
neutrino
~ 700m Active Length
8 GeV Linac
Main
Injector
@2 MW
M. Popovic

6. Linac 1300 MHz β=1 8 Klystrons 288 Cavities in 36 Cryomodules β=1
Modulator
36 Cavites / Klystron
8 Klystrons
288 Cavities in 36 Cryomodules
1300 MHz β=1
10 MW
TESLA
Klystrons
M. Popovic

7. One Cryo Module
M. Popovic

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

9. Two Design Points for 8 GeV Linac
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
M. Popovic

10. 8 GeV Linac Neutrino “Super- Beams” X-RAY FEL LAB Neutrino Target
8 GeV Superconducting Linac With X-Ray FEL, 8 GeV Neutrino & Spallation Sources, LC and Neutrino Factory
Damping Rings
for FNAL
With 8 GeV e+ Preacc.
1% LC Systems Test
VLHC at Fermilab
Neutrino
“Super-
Beams”
NUMI
Off-
Axis
SY-120
Fixed-Target
X-RAY FEL LAB
Anti-
Proton
8 GeV
neutrino
~ 700m Active Length
8 GeV Linac
Main
Injector
@2 MW
Neutrino Target
Neutrinos
to “Homestake”
Bunching
Ring
Recirculating
Linac for Neutrino Factory
& Long-Pulse
Spallation Source?
Target and Muon Cooling Channel
Short Baseline Detector Array
M. Popovic

11. Pillbox Cavity
U_bunch[Joul]=5l[m]*Eo[MV/m]*Nb[1010]*10-4
M. Popovic

12. Extra
M. Popovic

13. Extra
M. Popovic

14. Extra
M. Popovic