Muon Acceleration Session

1
Muon Acceleration Session

• Large Acceptance Linac for Low-Energy Muons -
  Sergey Kurennoy
• TeV Scale RLA Based Muon Acceleration - Alex
  Bogacz
• Pulsed Magnet Arc Designs for Muon RLA - Kevin
  Beard

2
Linac for low-energy muons
Sergey Kurennoy
3
RF cavities for muon linac, 805 MHz
4
Muon linac to 200 MeV 805 MHz vs. 3 GHz
5
RLA for Muons (MC)

• Dogbone RLA preferred configuration
• better orbit separation for higher passes
• offers symmetric solution for simultaneous
  acceleration of m and m-
• FODO bisected linac Optics - large number of
  passes supported
• 8-pass RLA example

Alex Bogacz
6
Mirror-symmetric Droplet Arc Optics
7
Fixed vs Pulsed linac Optics (12-pass)

• Quad pulse would assume 500 Hz cycle ramp with
  the top pole field of 1 Tesla.
• Equivalent to maximum quad gradient of Gmax 2
  kGauss/cm (5 cm bore radius) ramped over t 10-3
  sec

8
Simplistic pulsed quad
Kevin Beard
9
NS-FFAG multi-pass Droplet Arc

• FMC lattice (large energy acceptance, 2.71)
  large enough to accommodate two passes (two
  neighboring energies, e.g. 4 GeV and 10 GeV)

,
Guimei Wang
MCDW 2008, JLAB, Dec 8-12, 2008
10
30-2000 GeV - ramped RLA concept
Kevin Beard
Don Summers
11
Bloom - non-ramped small arcs
Kevin Beard
12
Reuse RF lots of schemes