| Abstract |
A new tumor treatment facility is currently under
construction at the Paul Scherrer Institute, Switzerland.
The treatments are performed by actively scanning a threedimensional
target volume, the tumor, with a thin proton
beam, depositing a defined energy dose. To allow multiple
rescanning of moving target volumes without increasing the
treatment time, the proton beam is deflected rapidly and
independently in two directions by means of dipole magnets.
For that purpose, two highly dynamic magnet power supplies
were developed and commissioned. This paper describes
the requirements, some design considerations and
the test results of these power supplies. |
