Fluorescent nuclear track detectors for out‐of‐field neutron dosimetry in proton therapy

This work presents the first LET-based method using FNTDs to estimate out-of-field neutron dose for a proton SOBP plan, measured inside a phantom. Integrating this method into clinical workflows may improve out-of-field dose estimation for sensitive patient groups, such as pregnant or pediatric patients, by enabling prior dose assessments using anthropomorphic phantoms.