Speaker
Description
Structure wakefield acceleration (SWFA) is a promising novel acceleration method being explored to develop more compact and cost-effective future accelerators. In SWFA, a high-charge drive bunch travels through a structure, exciting strong wakefields that can be used to accelerate a trailing lower-charge main bunch. A major challenge in this scheme is beam break-up (BBU) instability, which can lead to beam losses, limiting the acceleration length and ultimately the beam energy gain. While several strategies have been proposed to address this issue, we present an alternative approach consisting of an array of rectangular dielectric waveguides with independently adjustable transverse positions. This arrangement enables section-by-section correction of transverse beam momentum and offset, offering a practical solution to mitigate BBU instability in SWFA schemes and improve their viability for future accelerator technologies. To test this concept, future experiments are being planned at the CLARA facility in Daresbury Laboratory.
