4 papers
Development of a Proton Therapy Research Beamline with FLASH and Minibeam Capabilities at the 18 MeV Bern Medical Cyclotron
Eva Kasanda, Lars Eggiman, Thierry Stammbach +10
Advanced radiotherapy approaches such as FLASH irradiation and spatially fractionated radiotherapy (SFRT) show potential to improve the therapeutic ratio, yet their biological mech…
New Limit on Axion-Like Dark Matter using Cold Neutrons
Ivo Schulthess, Estelle Chanel, Anastasio Fratangelo +8
We report on a search for dark matter axion-like particles (ALPs) using a Ramsey-type apparatus for cold neutrons. A hypothetical ALP-gluon-coupling would manifest in a neutron ele…
Non-Destructive Beam Monitoring via Secondary Radiation Detection with Ce-Doped Silica Fibers
Alexander Gottstein, Pierluigi Casolaro, Gaia Dellepiane +7
Non-destructive beam diagnostics are essential for low-energy medical cyclotrons, where even thin interceptive devices can severely degrade beam quality. We investigate an external…
Beam Energy Measurement using a Bayesian Approach with the Stacked Foil Method
Alexander Gottstein, Lorenzo Mercolli, Eva Kasanda +7
We present a practical method to measure the energy of proton beams at a medical cyclotron using the stacked foil technique in combination with a Bayesian inference method. By meas…