Simple model with a high capacitance kicker
This animation shows the behavior of a feedback system relying on a high capacitance kicker. Click here to see the animation (700 Ko)
It can be split into 4 components:
A train arrives at IP with a given offset. Luminosity is lost due to this offset.
The offset is measured on the outgoing bunches and correction is applied to the incoming bunches.
As non or weakly corrected bunches reach the measuring device, correction is increasing, leading to a too high correction and thus overcorrection.
Through oscillation between under- and over-correction the system will converge to a zero beam offset at IP.
This is not the best model we could expect as a lot f luminosity is lost during the oscillations!
Simple model with low capacitance kicker.
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Last modified: Mon Apr 7 16:31:49 JST 2003
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