Year: 1987
Type: article
Abstract: To prevent transverse instabilities at high beam intensiLy in the SPS, the transverse feedback system for damping the betatron oscillations has been upgraded for larger damping decrements and for increased system's bandwidth. The feedback loop now contains a digital delay line cancellor, so that the damper works with a velocity feedback Ax/At, unaffected by the closed orbit position x at the pick-up station. The digital processing of the feedback signal facilitates nonlinear feedback techniques such as antidamping and "bang-bang" feedback. The "bang-bang " feedback provides the maximum possible damping rate of the injection oscillations in the SPS-collider, in order to minimize
Authors: R. Bossart, J Mourier, L. Vos, R Louwerse
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W157173237