Determination of error field sources by accurate mapping of the magnetic geometry of the H-1 heliac

Santhosh T.A. Kumar, Boyd D. Blackwell, Jeffrey H. Harris

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

High precision mapping of the vacuum flux surfaces of the H-1NF heliac is carried out using electron-beam multi-wire tomography for various magnetic configurations and field strengths. The extreme accuracy of this technique has been exploited to understand the nature of error fields and to determine the best-fit empirical values for the H-1NF coil parameters, by point-by-point matching experimental surface data with computer modelling results. This has helped in developing a highly accurate computer model for H-1NF magnetic configurations.

Original languageEnglish
Article number035001
JournalNuclear Fusion
Volume49
Issue number3
DOIs
StatePublished - 2009

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