High-gradient linacs of next generation require novel accelerating structures which are compact, robust and cost-effective. Dedicated research and development have been launched in the linear-collider community. This paper focuses on the technological developments directed to show the viability of novel welding techniques and related applications, in order to benefit from the superior high-gradient performance of accelerating structures made of hard-copper alloys. The structure geometry that we propose allows getting a high longitudinal shunt impedance of the accelerating mode and increasing the mode separation frequencies.
@article{arxiv.2109.03954,
title = {A hard open X-band RF accelerating structure made by two halves},
author = {Bruno Spataro and Mostafa Behtouei and Fabio Cardelli and Martina Carillo and Valery Dolgashev and Luigi Faillace and Mauro Migliorati and Luigi Palumbo},
journal= {arXiv preprint arXiv:2109.03954},
year = {2021}
}