A multichannel neutron flux monitoring system for a boron neutron capture therapy facility

The progress in the design of new accelerator-based neutron sources for boron neutron capture therapy (BNCT) generated new requirements to the detector systems to monitor the particle flux during the irradiation of patients. In the current research, we evaluated basic parameters of a twin scintillator-over-fiber system with a silicon photo-multiplier readout based on boron-enriched and boron-free plastic scintillators. The presented results showed that the proposed system could be used for monitoring of neutron flux, and the designed detector system demonstrated good linearity, up to ~ 2 mA, limited by accelerator specifications at that time.