IDS Accelerator Working Group

Accelerator Baseline Specification 12 February 2008

Proton Driver
Proton power4 MW
Proton kinetic energy5–15 GeV
Pulses per second50
Bunches per pulse3
Minimum time between bunches17 µs
Maximum time for all bunches40 µs
RMS proton bunch length1–3 ns
Target
MaterialHg
TypeLiquid jet
Jet diameter1 cm
Jet velocity20 m/s
Jet angle to axis100 mrad
Jet angle to proton beam33 mrad
Proton beam angle to axis67 mrad
Front End
ICOOL input filesfor001.dat
for030.dat
for031.dat
Acceleration
RF frequency201.25 MHz
RF typeSuperconducting
Total energy at injection244 MeV
Transverse normalized acceptance at input30 mm
Longitudinal normalized acceptance at input150 mm
Stage 1, typeLinac
Stage 1, lattice cellSolenoid FOFO
Stage 1, lattice fileslinac_sol.opt
linac_sol.mad
Total energy, stage 1–2 transition0.9 GeV
Stage 2, typeDogbone RLA
Stage 2, cavity aperture diameter30 cm
Stage 2, energy gain per cavity cell12.75 MV
Stage 2, lattice cellFODO
Stage 2, linac passes4.5
Total energy, stage 2–3 transition3.6 GeV
Stage 3, typeDogbone RLA
Stage 3, cavity aperture diameter30 cm
Stage 3, energy gain per cavity cell12.75 MV
Stage 3, lattice cellFODO
Stage 3, linac passes4.5
Total energy, stage 3–4 transition12.6 GeV
Stage 4, typeLinear
non-scaling
FFAG
Stage 4, cavity aperture diameter30 cm
Stage 4, energy gain per cavity cell12.75 MV
Stage 4, lattice cellFODO
Stage 4, cavity cells per lattice cell2
Storage Ring
Total muon energy25 GeV
TypeRacetrack
Number of rings2
RMS angular divergence, production straight0.1/γ
Gap between bunch trains100 ns
Possible simultaneous signs per ring2
Total production straight μ decays in 107 s1021
Short baseline3000–5000 km
Long baseline7000–8000 km
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