Development of a rotating-coil scanner for superconducting accelerator magnets

Rogacki, Piotr; Fiscarelli, Lucio; Russenschuck, Stephan; Hameyer, Kay

The High-Luminosity upgrade project for the Large Hadron Collider (HL-LHC) at CERN (Conseil Européen pour la Recherche Nucléaire) will require new superconducting magnets for the insertion regions. Among these magnets, the new triplet quadrupoles, based on Nbinline-formula3Sn technology, require magnetic-field measurements of a high precision in the field angle and multipole field errors. In this paper, we present a scanning system based on a rotating-coil magnetometer and its transport system, including the design of the mechanical structure and the induction coils based on printed-circuit-board (PCB) technology. The system and its components are cross-calibrated with other field transducers, such as stretched-wire systems, and their measurement precision is established in a measurement campaign of 2 m long reference quadrupoles.

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Rogacki, Piotr / Fiscarelli, Lucio / Russenschuck, Stephan / et al: Development of a rotating-coil scanner for superconducting accelerator magnets. 2020. Copernicus Publications.

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