Speaker
Ayaka Kondo
(Nagoya University)
Description
A muon linear accelerator is under development at J-PARC for precise measurement of the muon anomalous magnetic moment (g-2) and electric dipole moment (EDM). The disk-and-washer (DAW) structure is employed to accelerate muons from 30% of the speed of light (kinetic energy = 4 MeV) to 70% (40 MeV) at 1296 MHz. The muon DAW consists of tanks accelerating the muons and bridge couplers that couple the tanks and focus the beam using an internal quadrupole doublet. The manufacturing accuracy of bridge couplers affects the accelerating field in tanks, so a detailed design of bridge couplers is important. This paper presents the design of the bridge-coupler prototype based on electromagnetic field calculation.
