Dortmund 2021 – wissenschaftliches Programm

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 4: New Accelerator Concepts and Hadron Accelerators

AKBP 4.8: Vortrag

Dienstag, 16. März 2021, 18:15–18:30, AKBPa

Construction and first beam tests of a novel focalisation system for novel medical radioisotope production — •Philipp Daniel Häffner — Universität Bern, Sidlerstrasse 5, 3012 Bern

Radioisotopes are fundamental in modern medicine. A research program focused on the production of novel medical radionuclides is ongoing at the Laboratory for High Energy Physics of the University of Bern. Cross sections are measured and novel production routes explored using the 18 MeV PET proton cyclotron located at the Bern University Hospital. The production is carried out by irradiating a 6 mm diameter pellet embedded in a specific capsule developed by our group that can be inserted in a commercial solid target station. This talk reviews the development and first beam tests of a compact irradiation system consisting of a set of electromagnets, a beam profile detector and a specific feedback software. We proved that the system is able to focus a flat beam down to the size matching the pellet surface. The expected increase in the production yield was observed. The system is also able to detect and correct possible deviations in the beam position and shape that may occur during irradiation. This was tested by inducing external perturbations and by verifying that the system restores the good beam parameters. Being about 1 m long, this system can be installed and operated in any medical cyclotron facility.