A Family of Precision Power Supplies for Corrector Magnets of the European X-Ray Free-Electron Laser

Abstract

Six types of precision stabilized-current sources (power supplies) have been developed to correct the parameters of the electron beam at the European X-ray Free-Electron Laser. Power supplies are designed to feed the windings of corrector magnets with a direct current of up to 10 A. Based on the stability requirements of the electron beam, the permissible output current instability should be 10^–5 or less. All power supplies must satisfy the requirements of electromagnetic compatibility with the electronics of the free-electron laser. The circuit and design features of the power supplies are described and the test results are presented