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Figure 1 | Radiation Oncology

Figure 1

From: Scanned carbon beam irradiation of moving films: comparison of measured and calculated response

Figure 1

Schematic drawing of the experimental setup. The particle beam was accelerated by a synchrotron and scanned over the moving radiographic film with the scanning magnets. a) For experiments with translational motion the films were positioned free in air moving left-right in beam's eye view. The motion was recorded in temporal correlation to the dose delivery by a calibrated CCD camera that monitored an infrared LED attached to the sliding table. b) In a second series of experiments an absorber (PMMA) with 4 different thicknesses that was positioned proximal to the moving table introduced range changes. As detector a stack of 5 films was used. Their positions relative to the Bragg peak is indicated in c).

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