Cyclotrons

The highest-power cyclotron system presently in operation is the cyclotron ensemble of the Paul Scherrer Institute (PSI) at Zurich, Switzerland.

The PSI cyclotrons. The characteristics of the PSI cyclotrons are given in Table 6.3. From the table we obtain a 27% RF-to-beam efficiency. The line-to-RF efficiency amounts to 66%, while the total line-to-beam efficiency reaches 18%. Compared with LAMPF, one notes a better efficiency of the RF power units, but a lower RF-to-beam transfer efficiency.