Patent ID: 8716663

Claim:
A device for monitoring and verification of treatment beam delivery to a target, with a particle radiation apparatus, said treatment beam comprising one or more treatment sub beams corresponding one or more treatment beam layers, said treatment beam layers being characterized by a set of treatment beam layer parameters, said particle radiation apparatus being configurable for a given set of treatment beam layer parameters, said device comprising: an acquirer configured to acquire treatment beam layer parameters for said one or more treatment beam layers; an electronic 2D detector device configured to: be placed between the particle irradiation apparatus and the target, and measure 2D responses of said treatment beam layer in a plane essentially perpendicular to the central axis of said treatment beam; a 2D detector response predicting module configured to determine predicted 2D detector responses for said one or more treatment beam layers to be delivered with said particle radiation apparatus configured with said given set of treatment beam layer parameters; a memory to store the predicted 2D detector responses of each said one or more treatment beam layers; an acquirer configured to acquire in real time the 2D detector responses caused by said one or more treatment beam layers delivered by said particle radiation apparatus being configured with said given set of treatment beam layer parameters; a 2D detector response comparison module configured to perform a comparison between the measured 2D detector responses and the corresponding said predicted 2D detector responses; and an error handling module configured to signal the difference between said measured 2D detector responses and said predicted 2D detector responses, and wherein said 2D detector response predicting module further comprises: a 2D detector fluence calculation device configured to calculate the particle fluence at the 2D detector position for said treatment beam layer parameters; said article fluence calculation device comprising a beam model said beam model being based on a set of beam model parameters, said beam model parameters comprising characteristics of the particle radiation apparatus and said particles; a 2D detector response calculation device configured to calculate for a given said article fluence at the 2D detector position the corresponding 2D detector responses said 2D detector response calculation device comprising a detector model of said 2D detector device describing the geometry of the 2D detector and a detector response model describing the response of the 2D detector to particle irradiation.