Speaker
Description
Organic scintillators offer high sensitivity and fast response but face challenges in achieving both high spatial resolution and rapid acquisition, and are prone to radiation damage. We present a novel beam profiler based on silicon microchannels filled with scintillating resin, each individually read out by a photodiode array connected to custom microcontroller-based electronics. The 60 × 60 mm² sensitive area is modular and easily replaceable, addressing radiation-induced degradation over time.
Designed as a plug-and-play solution for high-energy beamlines in particle therapy center, the compact detector achieves ~100 µm spatial resolution and is designed to reach profiling rates up to 4 kHz, although such rates are yet to be experimentally validated. Integration times are configurable between 20 µs and 1.4 s. Testing at CNAO with 70–230 MeV proton beams showed good agreement with reference detectors at low energies (<100 MeV), with a broadening effect observed at higher energies. This detector offers precise, high-rate beam characterization and is well-suited for commissioning and routine operation in a wide range of accelerator facilities.
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