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- H.M. Kewlani, D.P. Chakravarthy, S. Gharat, L. Mishra, K.C. Mittal, P. Roychowdhury
BARC, Mumbai, India
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The control system of Electron Cyclotron Resonance (ECR) ion source is computer based control system. Main components of ECR ion source are microwave generator, plasma chamber, solenoid magnets, high current power supplies, extraction electrodes, high voltage power supplies, beam measuring devices and vacuum system. All the electronics devices have their built in microprocessor base electronic interface, which can be remotely accessed by serial or Ethernet link. Two numbers of Ethernet to four port serial converter modules are used to extend the serial interface capabilities of computer. Serial interface of all the devices are connected to the extended serial ports of the computer. Serial link of high voltage power supplies are optically isolated using optical isolators to overcome EMI and EMC problems. Software has been developed in house for remote operation of the ECR ion source electronic devices like magnetron power supply, high voltage power supplies, high current power supplies, microwave power measurement and vacuum gauges.
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