Trapped field characteristics of stacked YBCO thin plates for compact NMR magnets: Spatial field distribution and temporal stability

Seungyong Hahn; Seok Beom Kim; Min Cheol Ahn; John Voccio; Juan Bascunan; Yukikazu Iwasa

doi:10.1109/TASC.2010.2043832

Trapped field characteristics of stacked YBCO thin plates for compact NMR magnets: Spatial field distribution and temporal stability

Seungyong Hahn, Seok Beom Kim, Min Cheol Ahn, John Voccio, Juan Bascunan, Yukikazu Iwasa

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

29 Citations (Scopus)

Abstract

This paper presents experimental and analytical results of trapped field characteristics of a stack of square YBCO thin film plates for compact NMR magnets. Each YBCO plate, 40 mm× 40 mm× 0.08 mm, has a 25-mm diameter hole at its center. A total of 500 stacked plates were used to build a 40-mm long magnet. Its trapped field, in a bath of liquid nitrogen, was measured for spatial field distribution and temporal stability. Comparison of measured and analytical results is presented: the effects on trapped field characteristics of the unsaturated nickel substrate and the non-uniform current distribution in the YBCO plate are discussed.

Original language	English
Article number	5439792
Pages (from-to)	1037-1040
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	20
Issue number	3
DOIs	https://doi.org/10.1109/TASC.2010.2043832
Publication status	Published - Jun 2010

Keywords

Compact NMR
Spatial homogeneity
Temporal stability
Trapped field
YBCO plate

ASJC Scopus subject areas

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

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10.1109/TASC.2010.2043832

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title = "Trapped field characteristics of stacked YBCO thin plates for compact NMR magnets: Spatial field distribution and temporal stability",

abstract = "This paper presents experimental and analytical results of trapped field characteristics of a stack of square YBCO thin film plates for compact NMR magnets. Each YBCO plate, 40 mm× 40 mm× 0.08 mm, has a 25-mm diameter hole at its center. A total of 500 stacked plates were used to build a 40-mm long magnet. Its trapped field, in a bath of liquid nitrogen, was measured for spatial field distribution and temporal stability. Comparison of measured and analytical results is presented: the effects on trapped field characteristics of the unsaturated nickel substrate and the non-uniform current distribution in the YBCO plate are discussed.",

keywords = "Compact NMR, Spatial homogeneity, Temporal stability, Trapped field, YBCO plate",

author = "Seungyong Hahn and Kim, {Seok Beom} and Ahn, {Min Cheol} and John Voccio and Juan Bascunan and Yukikazu Iwasa",

note = "Funding Information: Manuscript received October 19, 2009. First published March 29, 2010; current version published May 28, 2010. This work was supported in part by a Grant from the National Institute of Biomedical Imaging and Bioengineering.",

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AU - Voccio, John

AU - Bascunan, Juan

AU - Iwasa, Yukikazu

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N2 - This paper presents experimental and analytical results of trapped field characteristics of a stack of square YBCO thin film plates for compact NMR magnets. Each YBCO plate, 40 mm× 40 mm× 0.08 mm, has a 25-mm diameter hole at its center. A total of 500 stacked plates were used to build a 40-mm long magnet. Its trapped field, in a bath of liquid nitrogen, was measured for spatial field distribution and temporal stability. Comparison of measured and analytical results is presented: the effects on trapped field characteristics of the unsaturated nickel substrate and the non-uniform current distribution in the YBCO plate are discussed.

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Trapped field characteristics of stacked YBCO thin plates for compact NMR magnets: Spatial field distribution and temporal stability

Abstract

Keywords

ASJC Scopus subject areas

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