Some Aspects of Winding Geometry Control for ITER Superconducting Coils Using Magnetic Measurements

Abstract

A feasibility has been demonstrated for numerical reconstruction of geometrical displacement or deformations of the winding occurred in the manufacture and assembly of magnet coils using magnetic measurements, that is one of the principal issues for the quality control of the magnet. For validations of the proposed approach, test results of reconstruction of possible misalignments and deviations of the ITER coil are presented.The method described is applicable for a variety of coils.

Magnetically Based Acceptance Procedures for ITER Toroidal Coils: An Assessment of Performance

“…The characterization of the actual geometry for high field magnets using external magnetic measurements has already been used for accelerator magnets [1], Nuclear Magnetic Resonance magnets [2], [3], and also for field magnets in Tokamaks [4]. In addition, external field measurements have been extensively used to characterize current redistribution in superconducting cables [5], [6].…”

Magnetic Determination of the Current Center Line for the Superconducting ITER TF Coils

“…For ITER magnets [2], the reference CCL of the toroidal field (TF) coils is defined [3]. Several contributions modeling such a measurement [4], [5], [6], [7], describing the validation of the measurement procedures [8], [9] as well as discussing manufacturing [10], [11] and assembly [12], [13] issues are available.…”