Characterization of pixelated silicon detectors for daily quality assurance measurements in proton therapy

The advanced imaging and delivery techniques in proton therapy allow conformal high-dose irradiation of the target volume with high accuracy using pencil beam scanning or shaping apertures. These methods increasingly include small radiation fields large dose gradients, which require detector systems spatial resolution for quality assurance. In addition measurement all success parameters daily assurance only one field simple system would save a lot time clinical usage. Based on their good rate compatibility, pixelated silicon detectors could meet new requirements. To assess applicability therapy, ATLAS are used to measure lateral profile resolution. Furthermore, dependent calibration is presented requested output constancy. A strategy verify energy during under study. Promising results from proof-of-principle measurements at West German Proton Therapy Centre Essen, Germany, have been obtained.