Orbit measurement and correction in the LNLS Synchrotron Light Source

Farias, R.H.A.; Jahnel, L.; Liu, Lin; Macedo, Diogo de Vasconcelos; Rafael, F.S.; Rodrigues, Amália; Tavares, Pedro Fernandes

doi:10.1109/pac.1997.751119

Cited by 2 publications

(1 citation statement)

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“…position measurement dependence on beam current), parameters for automatic orbit correction, relation between beam stability at the monitors and at the beamline source points, correlation of orbit drifts and oscillations with temperature variations etc. This program started even before the machine was officially delivered to users [1], with the identification of orbit drifts correlated to magnet temperature variations and the implementation of an orbit feedback system, which was able to keep orbit variations below ±70 µm along a user's shift (orbit stability) as well as from shift to shift (orbit reproducibility) with orbit corrections being performed once every hour.…”

Section: Introductionmentioning

confidence: 99%

Orbit correction in the LNLS UVX electron storage ring

Franco

Jahnel²,

Liu³

et al.

Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366)

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The orbit measurement and correction system of the LNLS synchrotron light source is presented. Recent changes to the system including the addition of 12 vertical correctors and the use of 16 bit DACs to control the corrector magnet power supplies have improved the vertical orbit repeatability from fill to fill from ±70 µm to ±3 µm. The improved resolution also allowed the implementation of automatic orbit corrections at 24 second intervals, thus reducing orbit variations along a user's shift from ±70 µm to ±5 µm.

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Section: Introductionmentioning

confidence: 99%