Some dosimetry and radiobiological studies with the SIN biomedical pion beam.

The high intensity isochronous cyclotron of the Swiss Institute for Nuclear Research, SIN near ZUrich, was put into operation about 1% years ago and the intensity of the extracted 590 MeV proton beam has. since May this year, reached a value of 25 uA under stable and continuous operation. It is foreseen to further increase this current 1) and to reach about 30 pA by the end of the year.