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arXiv · 2106.15168

Local field reconstruction from rotating coil measurements in particle accelerator magnets

Ion Gabriel Ion·Melvin Liebsch·Abele Simona·Dimitrios Loukrezis·Carlo Petrone·Stephan Russenschuck·Herbert De Gersem·Sebastian Schöps
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Abstract

In this paper a general approach to reconstruct three dimensional field solutions in particle accelerator magnets from distributed magnetic measurements is presented. To exploit the locality of the measurement operation a special discretization of the Laplace equation is used. Extracting the coefficients of the field representations yields an inverse problem which is solved by Bayesian inversion. This allows not only to pave the way for uncertainty quantification, but also to derive a suitable regularization. The approach is applied to rotating coil measurements and can be extended to any other measurement procedure.

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Ion Gabriel Ion, Melvin Liebsch, Abele Simona, Dimitrios Loukrezis, Carlo Petrone, Stephan Russenschuck, Herbert De Gersem, Sebastian Schöps. 2021-06-29. Local field reconstruction from rotating coil measurements in particle accelerator magnets. https://doi.org/10.1016/j.nima.2021.165580

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