Opening Address.- Opening Address.- Welcome Address.- Welcome Address.- Cyclotron Status Reports.- Summary Talk on Cyclotrons.- Status Report on the Indiana University Cyclotron Facility.- Status Report on S.I.N..- The Status of TRIUMF.- Report on the CERN SC Improvement Programme.- Status of the Nevis Synchrocyclotron.- Cyclotrons of the JINR Laboratory of Nuclear Problems.- Status of the VICKSI Project.- Cyclotron Facilities in Japan.- Status Report of Cyclone.- Status of the 224-cm Variable Energy Cyclotron at Calcutta.- Some Characteristics from Orleans and Liege Cyclotrons.- Bonn Cyclotron Progress Report.- The Osaka University RCNP 230-cm Isochronous Cyclotron.- The Orsay 200-MeV Synchrocyclotron.- The INS 176cm Sector Focusing Cyclotron.- General Design Features of the Warsaw University 200 cm Isochronous Heavy Ion Cyclotron.- New Proposals.- GANIL: A Proposal for a French Heavy Ion Laboratory.- Proposal for a South African National Accelerator Facility for Physics and Medicine.- A Proposed New Injector for the S.I.N. Ring Cyclotron.- Conversion Studies for the Uppsala Synchrocyclotron.- The GANIL Injector.- 150 MeV Proton Medical Cyclotron Design Study.- RF-Systems, Magnets.- Special Aspects of Cyclotron RF Systems.- Design, Construction and Operation of the New CERN SC RF System.- Multipacting Related Processes and RF Breakdown Protection by Using Bias Pulsing at the Nevis Synchrocyclotron.- Design of an RF System for an Open-Sector Cyclotron.- Results of a New Passive RF Stabilizing System.- The GANIL Accelerating System.- TRIUMF RF System - Initial Operating Problems and their Solutions.- Absolute Calibration of Dee Voltage by X-Ray Endpoint.- Principles and Performance of the Cee beam stretching system at CERN SC 2.- A New Approach for High Power Solid-State Drivers Used for Wide-Band RF Acceleration.- The S.I.N. Fast Magnetic Field Measuring System.- Measurement and Shimming of the Improved CERN Synchro-Cyclotron Magnet.- Magnet System of the S.I.N. Ring Injector Cyclotron.- Design of Magnets for an Open-Sector Cyclotron.- Magnet Model Studies for Separated-Sector Heavy Ion Cyclotrons.- Magnetic Field Trimming Studies for a Separated-Sector Cyclotron.- Magnetic Field Design and Measurement for the Kurchatov Institute Cyclotron.- Orbit Dynamics, Extraction and Injection, Beam Transfer, Spectrometers.- Beam Transfer Between Accelerators at Cyclotron Facilities.- Novelties in Spectrometers.- Injection in the VICKSI Cyclotron.- The Beam Transport System for the Modified Orsay Synchrocyclotron.- Improving the Energy Resolution of Particle Detection by Proper Beam Matching at JULIC.- Properties of the TRIUMF Cyclotron Beam.- Beam Dynamics in Separate Sector Cyclotrons.- Improved Energy Resolution with the MSU Cyclotron.- Precession Injection in the Delft Isochronous Cyclotron.- Injection and Ejection Systems for the GANIL SSC.- Comparison of Orbit Theories for Separated Sectored Cyclotrons.- Space Charge Effects in the Phase Plane During Injection in a Synchrocyclotron.- Focusing in RF Accelerating Gaps with Asymmetrically Curved Electric Equipotentials.- Cyclotron Centre Region Study and Beam Diagnostic at Orleans Cyclotron.- Modification of the Center Region for Better Beam Quality at JULIC.- The Isochronism in the S.I.N. 590 MeV Ring Cyclotron.- The Extraction System of the Improved CERN Synchrocyclotron.- The Electrostatic Extractor Channel for the S.I.N. 590 MeV Ring Cyclotron.- Beam Transfer Problems on GANIL.- Final Design and Initial Performance of the Nevis Secondary Beam Channel.- The Design, Assembly and Performance of the SIN Beam Transfer Line.- Beam Transport System for the INS 176cm Sector Focusing Cyclotron.- Rotating Wedge Cyclotron Beam Degrader.- A Simple Beam Chopper for T.O.F. Experiments.- On the theory of the Coupling Between Radial Oscillations and H.F. Phase and Energy of Particles in Cyclotrons.- Passage of Integral Resonances in a Cyclotron Kaon Facility.- Beam Extraction System in the Kiev 240-cm Isochronous Cyclotron.- Beam Diagnostics, Ion Sources.- Beam Diagnostic Equipment for Cyclotrons.- New Developments on Heavy Ion Sources.- Beam Stabilization by External Beam-Phase Feedback.- The HF-Phase Measuring Equipment of the Eindhoven AVF-Cyclotron.- The Use of a Secondary Emission Monitor in the Extraction Channel of the CERN Synchro-Cyclotron.- Intensity-Distribution Monitors for the SIN External Proton Beams.- ??-Beam Studies Using Time-of-Flight Methods.- Investigation of the Thermal Regime in a Cyclotron Target.- Measuring System of Phase Characteristics and Beam Phase Stabilization of Cyclotrons.- Ion Source and Central Region in the Improved CERN 600-MeV Synchro-Cyclotron.- Status Report of the Axial Injection System at the Karlsruhe Isochronous Cyclotron.- Initial Experience in Ion Production Using an Ultra-high Power Density Method.- H? Beam Intensity Improvements at the Milan AVF Cyclotron.- Polarized Deuterons of a Lambshift Ion Source Accelerated by the Karlsruhe Isochronous Cyclotron.- A Vertical Injection System for the University of Manitoba Cyclotron.- An Ion Source for Obtaining Highly Stripped Heavy Ions.- Applications of Cyclotrons in Biology and Medicine.- Panel Session: Accelerators for Hospitals.- Applications of Cyclotrons in Medical Diagnosis.- Proton and Heavy Ion Therapy.- Meson Radiobiology and Therapy.- Fast-Neutron Radiobiology and Radiotherapy.- Survey of the Pretherapeutic Experiments with Fast Neutrons Produced with the 50 Mev Deuteron Beam of Cyclone.- Irradiation Experiments on Diploid Yeast with Heavy Particles.- Installation of a Compact, Variable-Energy Cyclotron in a Hospital and Preliminary Results Obtained.- Applications of the Compact Cyclotron of the German Cancer Research Centre in Nuclear Medicine, Neutron Therapy and Radiation Biophysics.+).- The Potential and Applications of Cyclotrons in Biomedical Fields.- Production of Short-Lived Radioisotopes for Medical Applications Using High-Energy Reactions at JULIC.- Recent Developments in the Production of I123 at the Milan AVF Cyclotron.- The Production of Short-Lived Radioisotopes, by 14 MeV Neutrons.- Transmission Detectors for Cyclotron in-vivo Irradiations with Neutrons.- Non-Computerized, off-axial Tomography with 580 MeV Protons.- The Production of Radionuclides 123I, 77Br for Nuclear Medicine with High Energetic 4He Particles.- Applications of Cyclotrons in Nuclear Physics, Chemistry and Engineering.- Applications of Cyclotrons in Nuclear Physics.- Applications of Cyclotrons in Particle Physics.- Applications of Cyclotrons in Technical and Analytical Studies.- The Potential of Proton Radiography.- Activation Analysis with Particles from a Cyclotron: Determination of Trace Oxygen in Metals by 2 3 He Activation, Multielemental Trace Analysis by Proton Activation.- Analysis of Protein Content in Grain by Proton Activation.- Irradiation of Machine Parts with Regard to Applications in Mechanical Engineering.- Measurement of Wear and Corrosion by Surface Irradiation with Charged Particle Beams.- Determination of Fluorine in Tea, Bones and Rocks Through the 19F(p,??) 16O Reaction Using a Cyclotron.- Environmental Studies with the Melbourne University Cyclotron.- Control Systems.- Panel Session: Computer Control for Cyclotrons.- Computer Controlled Beam Diagnostics at the Karlsruhe Isochronous Cyclotron.- Hardware Aspects of the IUCF Control System.- The SIN Control System.- The Data Acquisition System (DAS) for the Improved CERN SC.- The Automatic Control of the Eindhoven AVF-Cyclotron.- Concept and Status of the Control System for the VICKSI Accelerators at HMI-Berlin.- The Use of CAMAC with Small Computers in the TRIUMF Control System.- The System of Automatic Beam Phase Measuring and Control for the Isochronous Cyclotrons.- Heavy Ions.- Heavy Ion Research at Cyclotron Energies.- Accelerators for Heavy Ions.- Superconducting Cyclotrons.- The Chalk River Superconducting Heavy Ion Cyclotron.- A Separated-Sector Cyclotron Post-Accelerator for the Oak Ridge Heavy Ion Laboratory.- Heavy Ion Booster Cyclotron Design Studies at Berkeley.- On the Possibility of Accelerating Multiply Charged Ions in the CERN Synchrocyclotron.- Preliminary Tests for the Axial Injection of Heavy Ions at the Grenoble Cyclotron.- The Louvain-la-Neuve Injector Cyclotron Project.- The Oak Ridge Isochronous Cyclotron as an Energy Booster for a 25 MV Tandem.- Design Study for the Conversion of the Oak Ridge Isochronous Cyclotron from an Energy Constant of K=90 to K=300 MeV.- Performance Report on the Kazakhstan Variable Energy Isochronous Cyclotron.- The History of the Cyclotron.- Closing Address.- Cyclotrons 1975.