Beta Correction Results

Fig. 1 shows the result of a beta correction reducing the beta beat in the horizontal and vertical plane by a factor of 2 with remaining beats of $\approx$ 4 % and $\approx$ 3 %. The quadrupole strength variation $\delta k/k$ $\approx$ 1.5e-3 with respect to the design strength $k$ is consistent with magnet measurements [1].