Demonstration of a compact linear accelerator

TL;DR

This paper demonstrates a compact RF linear accelerator integrating a source, matching section with electrostatic quadrupoles, and acceleration units, showcasing improved beam capture and matching capabilities.

Contribution

It introduces a novel integrated compact accelerator structure with a 3D-printed matching section that enhances beam capture and matching efficiency.

Findings

Successfully integrated source, matching section, and acceleration units

Captured twice the beam compared to previous setups

Demonstrated effective beam matching with the new structure

Abstract

Recently, we presented a new approach for a compact radio-frequency (RF) accelerator structure and demonstrated the functionality of the individual components: acceleration units and focusing elements. In this paper, we combine these units to form a working accelerator structure including a matching section between the ion source extraction grids and the RF-acceleration unit. The matching section consist of six electrostatic quadrupoles (ESQs) fabricated using 3D-printing techniques. The matching section enables us to capture twice the amount of beam and match the beam envelope to conditions for an acceleration lattice. We present data from an integrated accelerator consisting of the source, matching section, and an ESQ doublet sandwiched between two RF-acceleration units.