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Simple Characterization Method of Small High Gradient Permanent Magnet Quadrupoles
2014
The application of quadrupoles with high or ultra-high gradient and small apertures requires a precise control over harmonic components of the field. A simple, fast, low cost measurement method on small size PMQs (Permanent Magnet Quadrupoles) is described. It is based on the same principle of the familiar "rotating coil technique", but in this case, profiting of the small dimensions of the PMQ, it consists in rotating the PMQ itself instead of the coil. In such way a gain on accuracy and
doi:10.18429/jacow-ipac2014-tupro091
fatcat:5n2mwqgq4fg2jngu6fepke4qsu