Use of a traveling wave (TW) accelerating structure with a small phase advance per cell instead of standing wave may provide a significant increase of accelerating gradient in a superconducting linear accelerator. The TW section achieves an accelerating gradient 1.2-1.4 larger than TESLA-shaped standing wave cavities for the same surface electric and magnetic fields. Recent tests of an L-band single-cell cavity with a waveguide feedback demonstrated an accelerating gradient comparable to the gradient in a single-cell ILC-type cavity from the same manufacturer. This article presents the next stage of the 3- cell TW resonance ring development which will be tested in the traveling wave regime. The main simulation results of the microphonics and Lorentz Force Detuning (LFD) are also considered.
@article{arxiv.1502.02060,
title = {Studies of the superconducting traveling wave cavity for high gradient LINAC},
author = {Pavel Avrakhov and Roman Kostin and Alexei Kanareykin and Nikolay Solyak and Vyacheslav P. Yakovlev},
journal= {arXiv preprint arXiv:1502.02060},
year = {2015}
}