Speaker
Description
In collaboration with the University Hospital Charité–Universitätsmedizin Berlin the Helmholtz-Zentrum Berlin has treated more than 4900 patients with ocular tumours using protons with an energy of 68 MeV. Parallel to tumour treatment is an on-going research programme on beam delivery, dosimetry, and radiation hardness tests. For the set-up of new beamlines and to increase our research possibilities a visualisation of the beam spot in the beamline is mandatory. Our existing rotating wire scanners provide no signal for light ions at relativistic energies and low intensities. Hence, a new beam profile monitor (BPM) was developed which is based on an optical system. The BPM should provide information about the beam shape at intensities between 10 pA to 50nA. We will present our set-up, first results about the sensitivity of the developed scintillators, and first experience with the new installed devices.
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