Speaker
Description
The development of a muon-dedicated traveling-wave disk-loaded structure (DLS) is in progress at the Japan Proton Accelerator Research Complex (J-PARC). Accelerating ultraslow muons to relativistic energies preserves low beam emittance and improves penetration capability, enabling new opportunities in precision particle physics experiments and muon imaging. However, unlike electrons, muons undergo substantial velocity changes during acceleration, even at high energies, requiring precise phase synchronization between the beam and RF fields. This requirement becomes more critical when using pulse-compressed RF power with temporal variation.
In this work, we present the RF design of a spherical-cavity-type pulse compressor (SCPC) for a DLS. Two degenerate $\mathrm{TE_{112}}$ modes with a 90-degree phase difference are utilized at 2592 MHz. RF performance was optimized using 3D electromagnetic simulations to achieve the target frequency characteristics and controlled mode degeneracy. Based on the RF loss distribution, thermal analysis evaluated temperature rise and cooling requirements, while structural simulations assessed deformation to estimate frequency detuning.
| I have read and accept the Privacy Policy Statement | Yes |
|---|