Device for the simultaneous measurement in real time of the energy and of the flux of a mono-energetic beam of hadrons of low energy

A system for measuring a mono-energetic hadron beam, characterized by including a first detection unit comprising a planar sensor having a sensing area segmented into a matrix of pixels (16), each pixel being adapted to provide a transit signal indicative of transit of a particle therethrough, and a counting circuit coupled to the sensor for providing an output signal indicative of number of particles Np of the beam crossing said sensing area in a time interval, based on the transit signals provided by said pixels, and a second detection unit arranged downstream of the first detection unit and comprising at least one ionization detector (31) for providing an output signal proportional to the total charge Qion released by the beam in the ionization detector in said time interval.