APPARATUS FOR THE CALIBRATION OF BEAMS OF CHARGED PARTICLES FOR EXTERNAL RADIOTHERAPY, IN PARTICULAR BEAMS OF PROTONS, CARBON IONS, AND OTHER ION SPECIES, EMITTED BY PARTICLE ACCELERATORS, AND CORRESPONDING CALIBRATION METHOD

摘要

An apparatus for the calibration of beams of charged particles (1300), in particular protons, carbon ions, and other ion species, emitted by systems for external radiotherapy with charged particles, comprising at least one sensor including multilayer ionization chambers (10), which comprises a plurality of sensor channels (20). According to the invention, said apparatus (100) includes a plurality of modular elements (120), each comprising a supporting frame (130), which identifies a seat (132) configured for housing a sensor with multilayer ionization chambers (10) or a sensor (30) with ionization chamber, which is able to supply information on the two-dimensional profile of the beam of charged particles (1300), said modular elements (120) being configured for being assembled to form a stack (115) in the direction (Z) of propagation of a beam of charged particles (1300) by aligning said seats (132) in the direction of said beam of charged particles (1300).