A digital flux injector for NMR magnets

Rocky Mai; Seung Yong Hahn; Haigun Lee; Juan Bascuñán; Yukikazu Iwasa

doi:10.1109/TASC.2005.849663

A digital flux injector for NMR magnets

Rocky Mai, Seung Yong Hahn, Haigun Lee, Juan Bascuñán, Yukikazu Iwasa

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

By periodically injecting a quantified amount of flux in a "slightly" resistive NMR magnet, a digital flux injector (DFI) enables the magnet to effectively operate in persistent mode. This paper presents: 1) parameters of the first full-scale DFI, specifically designed and built to operate with an LTS/HTS NMR magnet; and 2) its preliminary results when coupled to an LTS insert magnet in a bath of liquid helium.

Original language	English
Pages (from-to)	2348-2351
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	15
Issue number	2 PART II
DOIs	https://doi.org/10.1109/TASC.2005.849663
Publication status	Published - 2005 Jun
Externally published	Yes

Keywords

Digital flux injector
LTS/HTS magnet
NMR magnet
Persistent mode

ASJC Scopus subject areas

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

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10.1109/TASC.2005.849663

Cite this

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title = "A digital flux injector for NMR magnets",

abstract = "By periodically injecting a quantified amount of flux in a {"}slightly{"} resistive NMR magnet, a digital flux injector (DFI) enables the magnet to effectively operate in persistent mode. This paper presents: 1) parameters of the first full-scale DFI, specifically designed and built to operate with an LTS/HTS NMR magnet; and 2) its preliminary results when coupled to an LTS insert magnet in a bath of liquid helium.",

keywords = "Digital flux injector, LTS/HTS magnet, NMR magnet, Persistent mode",

author = "Rocky Mai and Hahn, {Seung Yong} and Haigun Lee and Juan Bascu{\~n}{\'a}n and Yukikazu Iwasa",

note = "Funding Information: Manuscript received October 4, 2001. This work was supported by the NIH National Center for Research Resources. The authors are with the MIT Francis Bitter Magnet Laboratory (FBML), Cambridge, MA 02139 USA (e-mail: kangkang@mit.edu; syhahn@jokaku. mit.edu; hlee@jokaku.mit.edu; bascunan@mit.edu; iwasa@jokaku.mit.edu). Digital Object Identifier 10.1109/TASC.2005.849663 Funding Information: One (S. Hahn) of the authors expresses gratitude for the support by the Post-doctoral Fellowship Program of Korea Science & Engineering Foundation (KOSEF).",

year = "2005",

month = jun,

doi = "10.1109/TASC.2005.849663",

language = "English",

volume = "15",

pages = "2348--2351",

journal = "IEEE Transactions on Applied Superconductivity",

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publisher = "Institute of Electrical and Electronics Engineers Inc.",

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T1 - A digital flux injector for NMR magnets

AU - Mai, Rocky

AU - Hahn, Seung Yong

AU - Lee, Haigun

AU - Bascuñán, Juan

AU - Iwasa, Yukikazu

N1 - Funding Information: Manuscript received October 4, 2001. This work was supported by the NIH National Center for Research Resources. The authors are with the MIT Francis Bitter Magnet Laboratory (FBML), Cambridge, MA 02139 USA (e-mail: kangkang@mit.edu; syhahn@jokaku. mit.edu; hlee@jokaku.mit.edu; bascunan@mit.edu; iwasa@jokaku.mit.edu). Digital Object Identifier 10.1109/TASC.2005.849663 Funding Information: One (S. Hahn) of the authors expresses gratitude for the support by the Post-doctoral Fellowship Program of Korea Science & Engineering Foundation (KOSEF).

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AB - By periodically injecting a quantified amount of flux in a "slightly" resistive NMR magnet, a digital flux injector (DFI) enables the magnet to effectively operate in persistent mode. This paper presents: 1) parameters of the first full-scale DFI, specifically designed and built to operate with an LTS/HTS NMR magnet; and 2) its preliminary results when coupled to an LTS insert magnet in a bath of liquid helium.

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KW - NMR magnet

KW - Persistent mode

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SN - 1051-8223

IS - 2 PART II

ER -

A digital flux injector for NMR magnets

Abstract

Keywords

ASJC Scopus subject areas

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