Characterisation of secondary neutron production in particle therapy treatment with the MONDO neutron tracking detector.
Fischetti M., Battistoni G., De Simoni M., Gioscio E., Mirabelli R., Patera V., Sarti A., Schiavi A., Sciubba A., Traini G., Marafini M.
V - Biofisica e fisica medica
Aula 32C-2 - Giovedì 20 h 16:30 - 19:00
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The MONDO (MOnitor for Neutron Dose in hadrOntherapy) project is devoted to the characterization of secondary ultrafast (20--400 MeV) neutrons emitted in Particle Therapy treatments. The detector, based on the detection of two consecutive (n,p) elastic scattering (ES), is a matrix of scintillating fibres, arranged in layers orthogonally oriented $(10\times 10\times 20$ cm$^3$). A series of MonteCarlo FLUKA simulations have been performed in order to study double ES events efficiency and background sources. A prototype, readout by an FBK SPAD array sensor, was tested at Trento Proton Therapy center with (60--220) MeV protons and the detector performance has been investigated.