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

48 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

Fingerprint

Induced currents
homogeneity
Magnets
Screening
magnets
screening
Nuclear magnetic resonance
nuclear magnetic resonance
inserts
Tapes
tapes
coils
Magnetic fields
cavities
Processing
magnetic fields
Experiments

Keywords

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

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

Cite this

Field mapping, NMR lineshape, and screening currents induced field analyses for homogeneity improvement in LTS/HTS NMR magnets. / Hahn, Seung Yong; Bascuñán, Juan; Kim, Woo Seok; Bobrov, Emanuel S.; Lee, Haigun; Iwasa, Yukikazu.

In: IEEE Transactions on Applied Superconductivity, Vol. 18, No. 2, 4497933, 01.06.2008, p. 856-859.

Research output: Contribution to journalArticle

Hahn, Seung Yong ; Bascuñán, Juan ; Kim, Woo Seok ; Bobrov, Emanuel S. ; Lee, Haigun ; Iwasa, Yukikazu. / Field mapping, NMR lineshape, and screening currents induced field analyses for homogeneity improvement in LTS/HTS NMR magnets. In: IEEE Transactions on Applied Superconductivity. 2008 ; Vol. 18, No. 2. pp. 856-859.
@article{69c2423d75874f34961e6d7728c5732d,
title = "Field mapping, NMR lineshape, and screening currents induced field analyses for homogeneity improvement in LTS/HTS NMR magnets",
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.",
keywords = "Field mapping, LTS/HTS NMR magnet, Nmr lineshape, Screening currents induced field (SCF)",
author = "Hahn, {Seung Yong} and Juan Bascu{\~n}{\'a}n and Kim, {Woo Seok} and Bobrov, {Emanuel S.} and Haigun Lee and Yukikazu Iwasa",
year = "2008",
month = "6",
day = "1",
doi = "10.1109/TASC.2008.921225",
language = "English",
volume = "18",
pages = "856--859",
journal = "IEEE Transactions on Applied Superconductivity",
issn = "1051-8223",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "2",

}

TY - JOUR

T1 - Field mapping, NMR lineshape, and screening currents induced field analyses for homogeneity improvement in LTS/HTS NMR magnets

AU - Hahn, Seung Yong

AU - Bascuñán, Juan

AU - Kim, Woo Seok

AU - Bobrov, Emanuel S.

AU - Lee, Haigun

AU - Iwasa, Yukikazu

PY - 2008/6/1

Y1 - 2008/6/1

N2 - 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.

AB - 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.

KW - Field mapping

KW - LTS/HTS NMR magnet

KW - Nmr lineshape

KW - Screening currents induced field (SCF)

UR - http://www.scopus.com/inward/record.url?scp=45149108885&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=45149108885&partnerID=8YFLogxK

U2 - 10.1109/TASC.2008.921225

DO - 10.1109/TASC.2008.921225

M3 - Article

VL - 18

SP - 856

EP - 859

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

SN - 1051-8223

IS - 2

M1 - 4497933

ER -