Comparative study of helical-cut notch–coil magnets for fast-field-cycling nuclear magnetic resonance
- Autores
- Kruber, Stephan; Farrher, German David; Anoardo, Esteban
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In this manuscript we describe an -helical-cut notch–coil magnet system designed for fast switching of the magneticfield. An attempt was made to determine the extent to which such a magnet configuration can be efficiently used for fast-field-cycling (FFC) nuclear magnetic resonance (NMR) instruments. In addition to the typical technical requirements (high field-to-power ratio, adequate electric performance for fast-switching of the magnetic field and NMR-compatible magnetic fieldhomogeneity), a tunable homogeneity within the sample volume and more uniform heat dissipation along the magnet body areincluded. A helical-cut notch–coil machined in metallic cylinders with external movable pieces was found to fit these require-ments very well. A key factor for the optimization of the magnet parameters is the use of a novel calculation procedure based ona more realistic model that consider a magnet geometry with broken azimuthal symmetry. The aim of this paper is to theoret-ically compare the proposed geometry with other existing designs. No particular prototype is presented here. A clear under-standing of the notch–coil performance was found to be an essential step for its further consideration as a potential autoadaptive(electronically controlled) magnet system for FFC applications.
Nous décrivons ici un système magnétique, comportant une bobine avec une coche hélicoïdale, destiné a`unecommutation cyclique rapide du champ magnétique. Nous tentons de déterminer si cette configuration serait efficace dans uninstrument de résonance magnétique nucléaire (RMN) a`cycle rapide du champ. En plus des exigences techniques habituelles(haut rapport champ/puissance, bonne performance électrique dans la commutation rapide du champ magnétique et unehomogénéité de champ compatible avec des mesures de RMN), nous incluons une homogénéité ajustable du champ magnétiquedans le volume de l’échantillon et une dissipation plus uniforme de la chaleur le long de l’aimant. Nous trouvons qu’une bobineavec une coche hélicoïdale usinée dans des cylindres métalliques avec pièces extérieures déplaçables remplit très bien cesexigences. Un facteur clé dans l’optimisation des paramètres de l’aimant est l’utilisation d’une nouvelle procédure de calculbasée sur un modèle réaliste qui considère une géométrie d’aimant dont la symétrie azimutale est brisée. Notre objectif ici estde comparer théoriquement la géométrie que nous proposons avec d’autres existant déja`. Nous ne présentons aucun prototype.Une compréhension claire de la performance d’une bobine avec coche est une étape essentielle pour évaluer son potentielcomme système magnétique.
Fil: Kruber, Stephan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Fil: Farrher, German David. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
Fil: Anoardo, Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina - Materia
-
Ffc - Nmr
Magnet Systems
Homogeneity
Optimization - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/31700
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Comparative study of helical-cut notch–coil magnets for fast-field-cycling nuclear magnetic resonanceKruber, StephanFarrher, German DavidAnoardo, EstebanFfc - NmrMagnet SystemsHomogeneityOptimizationhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In this manuscript we describe an -helical-cut notch–coil magnet system designed for fast switching of the magneticfield. An attempt was made to determine the extent to which such a magnet configuration can be efficiently used for fast-field-cycling (FFC) nuclear magnetic resonance (NMR) instruments. In addition to the typical technical requirements (high field-to-power ratio, adequate electric performance for fast-switching of the magnetic field and NMR-compatible magnetic fieldhomogeneity), a tunable homogeneity within the sample volume and more uniform heat dissipation along the magnet body areincluded. A helical-cut notch–coil machined in metallic cylinders with external movable pieces was found to fit these require-ments very well. A key factor for the optimization of the magnet parameters is the use of a novel calculation procedure based ona more realistic model that consider a magnet geometry with broken azimuthal symmetry. The aim of this paper is to theoret-ically compare the proposed geometry with other existing designs. No particular prototype is presented here. A clear under-standing of the notch–coil performance was found to be an essential step for its further consideration as a potential autoadaptive(electronically controlled) magnet system for FFC applications.Nous décrivons ici un système magnétique, comportant une bobine avec une coche hélicoïdale, destiné a`unecommutation cyclique rapide du champ magnétique. Nous tentons de déterminer si cette configuration serait efficace dans uninstrument de résonance magnétique nucléaire (RMN) a`cycle rapide du champ. En plus des exigences techniques habituelles(haut rapport champ/puissance, bonne performance électrique dans la commutation rapide du champ magnétique et unehomogénéité de champ compatible avec des mesures de RMN), nous incluons une homogénéité ajustable du champ magnétiquedans le volume de l’échantillon et une dissipation plus uniforme de la chaleur le long de l’aimant. Nous trouvons qu’une bobineavec une coche hélicoïdale usinée dans des cylindres métalliques avec pièces extérieures déplaçables remplit très bien cesexigences. Un facteur clé dans l’optimisation des paramètres de l’aimant est l’utilisation d’une nouvelle procédure de calculbasée sur un modèle réaliste qui considère une géométrie d’aimant dont la symétrie azimutale est brisée. Notre objectif ici estde comparer théoriquement la géométrie que nous proposons avec d’autres existant déja`. Nous ne présentons aucun prototype.Une compréhension claire de la performance d’une bobine avec coche est une étape essentielle pour évaluer son potentielcomme système magnétique.Fil: Kruber, Stephan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; ArgentinaFil: Farrher, German David. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; ArgentinaFil: Anoardo, Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; ArgentinaNational Research Council Canada-NRC Research Press2014-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/31700Anoardo, Esteban; Farrher, German David; Kruber, Stephan; Comparative study of helical-cut notch–coil magnets for fast-field-cycling nuclear magnetic resonance; National Research Council Canada-NRC Research Press; Canadian Journal Of Physics; 92; 11; 4-2014; 1430-14400008-4204CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1139/cjp-2013-0655info:eu-repo/semantics/altIdentifier/url/http://www.nrcresearchpress.com/doi/10.1139/cjp-2013-0655info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:22:40Zoai:ri.conicet.gov.ar:11336/31700instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:22:40.965CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Comparative study of helical-cut notch–coil magnets for fast-field-cycling nuclear magnetic resonance |
title |
Comparative study of helical-cut notch–coil magnets for fast-field-cycling nuclear magnetic resonance |
spellingShingle |
Comparative study of helical-cut notch–coil magnets for fast-field-cycling nuclear magnetic resonance Kruber, Stephan Ffc - Nmr Magnet Systems Homogeneity Optimization |
title_short |
Comparative study of helical-cut notch–coil magnets for fast-field-cycling nuclear magnetic resonance |
title_full |
Comparative study of helical-cut notch–coil magnets for fast-field-cycling nuclear magnetic resonance |
title_fullStr |
Comparative study of helical-cut notch–coil magnets for fast-field-cycling nuclear magnetic resonance |
title_full_unstemmed |
Comparative study of helical-cut notch–coil magnets for fast-field-cycling nuclear magnetic resonance |
title_sort |
Comparative study of helical-cut notch–coil magnets for fast-field-cycling nuclear magnetic resonance |
dc.creator.none.fl_str_mv |
Kruber, Stephan Farrher, German David Anoardo, Esteban |
author |
Kruber, Stephan |
author_facet |
Kruber, Stephan Farrher, German David Anoardo, Esteban |
author_role |
author |
author2 |
Farrher, German David Anoardo, Esteban |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Ffc - Nmr Magnet Systems Homogeneity Optimization |
topic |
Ffc - Nmr Magnet Systems Homogeneity Optimization |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
In this manuscript we describe an -helical-cut notch–coil magnet system designed for fast switching of the magneticfield. An attempt was made to determine the extent to which such a magnet configuration can be efficiently used for fast-field-cycling (FFC) nuclear magnetic resonance (NMR) instruments. In addition to the typical technical requirements (high field-to-power ratio, adequate electric performance for fast-switching of the magnetic field and NMR-compatible magnetic fieldhomogeneity), a tunable homogeneity within the sample volume and more uniform heat dissipation along the magnet body areincluded. A helical-cut notch–coil machined in metallic cylinders with external movable pieces was found to fit these require-ments very well. A key factor for the optimization of the magnet parameters is the use of a novel calculation procedure based ona more realistic model that consider a magnet geometry with broken azimuthal symmetry. The aim of this paper is to theoret-ically compare the proposed geometry with other existing designs. No particular prototype is presented here. A clear under-standing of the notch–coil performance was found to be an essential step for its further consideration as a potential autoadaptive(electronically controlled) magnet system for FFC applications. Nous décrivons ici un système magnétique, comportant une bobine avec une coche hélicoïdale, destiné a`unecommutation cyclique rapide du champ magnétique. Nous tentons de déterminer si cette configuration serait efficace dans uninstrument de résonance magnétique nucléaire (RMN) a`cycle rapide du champ. En plus des exigences techniques habituelles(haut rapport champ/puissance, bonne performance électrique dans la commutation rapide du champ magnétique et unehomogénéité de champ compatible avec des mesures de RMN), nous incluons une homogénéité ajustable du champ magnétiquedans le volume de l’échantillon et une dissipation plus uniforme de la chaleur le long de l’aimant. Nous trouvons qu’une bobineavec une coche hélicoïdale usinée dans des cylindres métalliques avec pièces extérieures déplaçables remplit très bien cesexigences. Un facteur clé dans l’optimisation des paramètres de l’aimant est l’utilisation d’une nouvelle procédure de calculbasée sur un modèle réaliste qui considère une géométrie d’aimant dont la symétrie azimutale est brisée. Notre objectif ici estde comparer théoriquement la géométrie que nous proposons avec d’autres existant déja`. Nous ne présentons aucun prototype.Une compréhension claire de la performance d’une bobine avec coche est une étape essentielle pour évaluer son potentielcomme système magnétique. Fil: Kruber, Stephan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina Fil: Farrher, German David. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina Fil: Anoardo, Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina |
description |
In this manuscript we describe an -helical-cut notch–coil magnet system designed for fast switching of the magneticfield. An attempt was made to determine the extent to which such a magnet configuration can be efficiently used for fast-field-cycling (FFC) nuclear magnetic resonance (NMR) instruments. In addition to the typical technical requirements (high field-to-power ratio, adequate electric performance for fast-switching of the magnetic field and NMR-compatible magnetic fieldhomogeneity), a tunable homogeneity within the sample volume and more uniform heat dissipation along the magnet body areincluded. A helical-cut notch–coil machined in metallic cylinders with external movable pieces was found to fit these require-ments very well. A key factor for the optimization of the magnet parameters is the use of a novel calculation procedure based ona more realistic model that consider a magnet geometry with broken azimuthal symmetry. The aim of this paper is to theoret-ically compare the proposed geometry with other existing designs. No particular prototype is presented here. A clear under-standing of the notch–coil performance was found to be an essential step for its further consideration as a potential autoadaptive(electronically controlled) magnet system for FFC applications. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/31700 Anoardo, Esteban; Farrher, German David; Kruber, Stephan; Comparative study of helical-cut notch–coil magnets for fast-field-cycling nuclear magnetic resonance; National Research Council Canada-NRC Research Press; Canadian Journal Of Physics; 92; 11; 4-2014; 1430-1440 0008-4204 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/31700 |
identifier_str_mv |
Anoardo, Esteban; Farrher, German David; Kruber, Stephan; Comparative study of helical-cut notch–coil magnets for fast-field-cycling nuclear magnetic resonance; National Research Council Canada-NRC Research Press; Canadian Journal Of Physics; 92; 11; 4-2014; 1430-1440 0008-4204 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1139/cjp-2013-0655 info:eu-repo/semantics/altIdentifier/url/http://www.nrcresearchpress.com/doi/10.1139/cjp-2013-0655 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
National Research Council Canada-NRC Research Press |
publisher.none.fl_str_mv |
National Research Council Canada-NRC Research Press |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844614219182374912 |
score |
13.070432 |