Construction of the Louvain-la-Neuve 30 MeV 500 mu A H/sup -/ cyclotron

The prototype of a new design of a 30 MeV H/sup -/ cyclotron for isotope production in Louvain-la-Neuve (Belgium) is described. The original magnet design combines the advantages of compact and separated sector cyclotrons and requires less than 7 kW of electric power. The ions are produced in an external multicusp ion source biased at 30 kV, and injected axially. The two 30 degrees dees, supported on half-wavelength vertical resonators are connected at the center. The RF frequency is 65 MHz, and the power for 50 kV dee voltage is 5 kW for one cavity. The cyclotron operation will be fully automatic, using a high-level programmable controller. The magnetic field shimming is completed.