The injector cyclotrons

The SPC1 injector cyclotron has been running very reliably. Beam interruptions due to injector failures amounted to only 6.2% of the total running time. A few minor modifications were made to improve the reliability even more, and the control of the rf-system has been automated to a point where almost no action is required from the operators during runs. Progress with the second injector cyclotron SPC2 has been slower than originally planned. Final preparations are being made for the magnetic field mapping of the main magnet. Most of the calculations for the central region have been completed, but the design of the central region has been delayed. Manufacture of the extraction system, which is basically the same as that of SPC1, the diagnostic system and the design of the vacuum control system are progressing well. The ECR-source has been delivered and is being installed. Manufacturing of the ion source for polarized protons and deuterons has been completed and the source is now being tested at the factory. Delivery is expected by the end of 1988. 1 fig., 2 refs., 2 tabs