A novel beam profiler based on microstructured scintillation resin is presented. The detector consists of a bundle of waveguides, with an active area of 30 x 30 mm2 and a pitch of 400 μm, obtained by molding a scintillating resin into a microfabricated PDMS mold. A first prototype, coupled to an array of photodiodes and readout electronics, which potentially allows profile rates of more than 7 kHz, has been tested using both a UV source and a proton beam accelerated at different energies, such as those typically used in proton therapy. The results obtained during the experimental test campaigns were compared with theoretical simulations showing a good agreement with the modeling expectations, thus confirming the validity of this novel design for microstructured scintillating detectors.
@article{arxiv.2308.15981,
title = {Microstructured Plastic Scintillators For Beam Profiling In Medical Accelerators},
author = {Veronica Leccese and Michele Caldara and Samuele Bisi and Marcello Pagano and Simone Gargiulo and Carlotta Trigila and Arnaud Bertsch and Alessandro Mapelli and Fabrizio Carbone},
journal= {arXiv preprint arXiv:2308.15981},
year = {2023}
}