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Figure 2. Experimental results for performance of the bump leakage suppression.
According to progress of the leakage suppression, one can see that the induced horizontal beam oscillation is reduced step by step. The red close circles, blue open circles, green crosses and yellow open diamonds show the beam oscillation amplitudes before the improvement, after sextupole optimization, after both sextupole optimization and bump field correction and simulation result with both sextupole optimization and bump field correction, respectively.