MONDO neutron tracker characterisation by means of proton therapeutical beams and Monte Carlo simulation studies.

Mirabelli R. , Battistoni G., Giacometti V., Patera V., Pinci D., Sarti A., Sciubba A., Traini G., Marafini M.
  Venerdì 15/09   09:00 - 12:00   Aula A204   V - Biofisica e fisica medica
The MONDO (MOnitor for Neutron Dose in hadrOntherapy) project aims a precise characterisation of the secondary fast and ultrafast neutrons produced in particle therapy treatments. The detector is composed of a matrix of scintillating fibre (250 $\mu$m) readout by CMOS digital-SPAD based sensors. Recoil protons from n-p elastic scattering are detected and used to track neutrons. A prototype was tested with proton beams (Trento Proton Therapy Centre): efficiency, light yield and track-reconstruction capability were studied. The results of a MonteCarlo FLUKA simulation used to evaluated double scattering efficiency and expected backgrounds will be presented.