Field mapping, NMR lineshape, and screening currents induced field analyses for homogeneity improvement in LTS/HTS NMR magnets

Seung Yong Hahn, Juan Bascuñán, Woo Seok Kim, Emanuel S. Bobrov, Haigun Lee, Yukikazu Iwasa

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

This paper describes two general methods: field map processing and NMR lineshape analysis, that we are currently using for the on-going research of field improvement techniques specifically applied to our 700 MHz LTS/HTS NMR magnet. The validity of the methods is verified with comparison between calculations and experiments. Also, a simple but effective analysis has been used to identify the principal source of a remanent magnetic field measured in the bore of the 700 MHz LTS/HTS NMR magnet: the Screening Current induced Field (SCF) from the 100-MHz HTS insert, comprised of 48 double pancake coils, each wound with Bi2223 tape.

Original languageEnglish
Article number4497933
Pages (from-to)856-859
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume18
Issue number2
DOIs
Publication statusPublished - 2008 Jun 1

Keywords

  • Field mapping
  • LTS/HTS NMR magnet
  • Nmr lineshape
  • Screening currents induced field (SCF)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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