On-Line Beam Monitoring for Boron Neutron Capture Therapy at the MIT Research Reactor
A computer-based beam monitoring system for boron neutron capture therapy is described. This system provides accurate, sensitive, and rapid on-line readout and recording of the beam components, epithermal and thermal neutron flux, and gamma ray dose rate. Readout of fluxes, fluentes, and corresponding doses in the target are provided in color coded graphic as well as numerical form on the computer monitors. Redundancy of fluence measurement is provided by an independent system using scalers and timers and by utilizing reactor power measuring instruments. Variations in neutron spectrum or spatial distribution of the beam can be rapidly diagnosed with the aid of the monitor readout.
KeywordsThermal Neutron Neutron Detector Boron Neutron Capture Therapy Epithermal Neutron Prompt Gamma Activation Analysis
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