Speaker
Description
The HZB cyclotron accelerator complex provides 68 MeV protons for proton therapy and related research. The main accelerator is an isochronous sector cyclotron served by two injectors. Originally, the cyclotron was designed for heavy ions. Hence, the beam profile monitors (BPM) on the high energy side are not appropriate for protons at the low intensities used for proton therapy.
At the experimental station as well as the treatment station, the profile and shape of the beam is determined via a mirrored image of a scintillator screen in air. For the experimental station, a LabVIEW code has been developed which displays the shape, transverse beam distribution, size and position of the beam.
As this tool proved to be very helpful when tuning the beam for experiments, an installation within the beam line in vacuum was designed for several locations where the beam is focused.
The design of the new beam profile monitors and their performance will be presented.
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