Status report on the cyclotron

Complete text of publication follows. The operation of the cyclotron in 1997 was concentrated again to 9 months; January, July and August were reserved for maintenance and holidays. The overall working time of the accelerator was 3946 hours with break down periods amounted to 87 hours. The cyclotron was available for users during 3409 hours, the effectively used beam time is summarized. (FERMI: Front-End Readout Microsystems, Radiation hardness measurements, CERN RD-16). The time used for the beam preparation and waiting for the start of an irradiation totalled to 558 hours. Parallel with the routine operation a large-scale modernization project has been in progress in the frame of a Technical Assistance Program (project code number HUN/4/013) of the International Atomic Energy Agency, which involves the renewal of the vacuum and control systems of the cyclotron. During the summer maintenance period the vacuum measurement subsystem was completely renewed and the control of the safety interlock system was successfully removed from the old fixed-wired electronics to the programmable logic controller