Fast Corrector Magnets for Fast Orbit Feedback System of Indus-2 Synchrotron
International Journal of Scientific Research & Engineering Technology/International journal of scientific engineering and technology(2017)
摘要
Synchrotron users in Indus-2 require stable photon beams for performing various scientific experiments. At the source points of the photons, typical requirement of the beam position stability is ≤ 10% of the r.m.s size of the electron beam. This stability requirement demands correction of beam orbit disturbances in the range from DC to 100 Hz. The existing slow corrector magnets in Indus-2 are used for correction of very slow disturbances e.g. thermal drift. Therefore a separate set of combined function corrector magnets of high bandwidth were developed for correction of short term perturbations (from low to high frequency up to 100 Hz). These fast corrector magnets have relatively weak kick strengths of ≥ ± 50 μrad at ±15 A DC. The magnetic measurements show no appreciable attenuation in the field strength of these magnets up to 200 Hz. The design, development of the fast corrector magnets and the results achieved by using them in the fast orbit feedback system of Indus-2 will be discussed in this paper.
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