Speaker
Description
A series of upgrades were implemented at the AECR ion source at UMCG-PARTREC to improve ion beam performance. The focus was on increasing beam intensity, enhancing long-term stability, optimizing ion species control in cocktail beams, and identifying optimal RF injection frequencies for plasma heating. A key enhancement was the installation of an Einzel lens. This increased the transmission efficiency through the analyzing magnet from 50% to 76% for 23 kV helium beams. As part of the EUROLABS ERIBS collaboration, a novel ion beam monitoring system was developed. It visualizes and records beam intensity and stability in real time. The system uses a semi-automated feedback loop that exploits defects in ion-optical imaging to parasitically monitor the analyzed beam. The gas mixing system was upgraded with a third gas valve and improved control mechanisms. This allows precise and rapid tuning of the ion fraction in xenon-krypton-oxygen cocktail beams. A frequency scanning device was introduced to evaluate beam performance across RF injection frequencies from 12.75 to 14.2 GHz. It successfully identified regions of high intensity and stability. Together, these upgrades enable more reliable and tunable ion beam delivery for experimental applications.
