Development of a 700 MHz low-/high- temperature superconductor nuclear magnetic resonance magnet: Test results and spatial homogeneity improvement.

Development of a 700 MHz low-/high- temperature superconductor nuclear magnetic resonance magnet: Test results and spatial homogeneity improvement. Research Abstract Details 

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Development of a 700 MHz low-/high- temperature superconductor nuclear magnetic resonance magnet: Test results and spatial homogeneity improvement. Abstract Text:

S Hahn,J ,H Lee,E S Bobrov,W Kim,Y Iwasa,

For the first time in nuclear magnetic resonance (NMR) magnet development, a magnet configuration comprising an insert wound with high-temperature superconductor (HTS) and a background-field magnet wound with low-temperature superconductor (LTS) has been proven viable for NMR magnets. This new LTS/HTS magnet configuration opens the way for development of 1 GHz and above NMR magnets. Specifically, a 700 MHz LTS/HTS NMR magnet (LH700), consisting of a 600 MHz LTS magnet (L600) and a 100 MHz HTS insert (H100), has been designed, built, and successfully tested, and its magnetic field characteristics were measured and analyzed. A field homogeneity of 172 ppm in a cylindrical mapping volume of 17 mm diameter by 30 mm long was measured at 692 MHz and corresponding (1)H NMR signal with 1.9 kHz half-width was captured. Two techniques, room-temperature and ferromagnetic shimming, were analytically examined to investigate if they would be effective for further improving spatial field homogeneity of the LH700.

Development of a 700 MHz low-/high- temperature superconductor nuclear magnetic resonance magnet: Test results and spatial homogeneity improvement. Publishing Authors By Initials

S Hahn,J ,H Lee,ES Bobrov,W Kim,Y Iwasa,

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Development of a 700 MHz low-/high- temperature superconductor nuclear magnetic resonance magnet: Test results and spatial homogeneity improvement. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: The Review of scientific instruments

VOLUME: 79

Page Numbers: 026105

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ISSN: 0034-6748

DAY: 4

MONTH: Feb

YEAR: 2008

Development of a 700 MHz low-/high- temperature superconductor nuclear magnetic resonance magnet: Test results and spatial homogeneity improvement. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Development of a 700 MHz low-/high- temperature superconductor nuclear magnetic resonance magnet: Test results and spatial homogeneity improvement.

AFFILIATION: Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.

Country: United States

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MEDLINETA: Rev Sci Instrum

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