Fibre Optic Analog Signal Link for the Electron Cyclotron Resonance Ion Sources

Electron cyclotron resonance ion sources are very important systems to obtain highly energetic ions from the cyclotrons. The analog and digital signals should be sent to the control system for controlling and monitoring the operating parameters of the ion source. Due to the presence of harsh electromagnetic interference and high-voltages, a reliable analog fiber-optic signal link should be used in the ion source. According to the ECR ion source requirements, two analog fiberoptic signal links using voltage-to-frequency and frequency-to-voltage conversion circuits based on IC AD650 have been designed and developed. The test results indicate that the developed signal links for ECR ion sources are accurate and reliable.