Analysis of magnetic field measurement results for the AGS booster magnets

Magnetic field measurements have been made on nearly 200 conventional magnets that have been installed in the AGS (Alternating Gradient Synchrotron) booster and its associated transfer lines. The measurement were intended to monitor the quality of the magnets being produced and to check the performance of each magnet before installation. The magnetic measurements efforts led to certain improvements in the manufacturing process, which subsequently produced very good, very uniform magnets. The integrated dipole fields of the 36 booster dipoles are uniform to 1.5 parts in ten thousand. The magnetic measurements indicate that the quadrupoles were manufactured to an accuracy of 3/10000 inch.<
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