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Development of a low-/high- temperature superconductor nuclear magnetic resonance magnet: Test results and spatial homogeneity improvement
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10.1063/1.2838587
/content/aip/journal/rsi/79/2/10.1063/1.2838587
http://aip.metastore.ingenta.com/content/aip/journal/rsi/79/2/10.1063/1.2838587

Figures

Image of FIG. 1.
FIG. 1.

Schematic to-scale drawing of LH700; H100 is to be installed in the cold bore of L600. All dimensions are in millimeters.

Image of FIG. 2.
FIG. 2.

Axial distance vs frequency difference plots for the LH700 at ; open circles: measured data; solid line: calculated based on an analytical model; dashed line: calculated with the RT shim alone activated; dotted line: calculated with ferroshimming set alone in effect.

Image of FIG. 3.
FIG. 3.

Normalized NMR signal vs frequency difference plots; solid line: measured; dashed line: with the RT shim coils alone activated; dotted line: with the ferroshim set alone in effect.

Tables

Generic image for table
Table I.

Measured field gradients up to the fourth order: (1) L600 at ; (2) LH700 at ; (3) calculated LH700 map after a ferroshim set applied on the LH700 map (without RT-shim).

Generic image for table
Table II.

Parameters of , , and RT shim coils; : radius of loop or arc ( and ); : axial location of loop ; and : axial locations of one set of four saddles ( and ). (Units: Hz/cm for and ; for .)

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/content/aip/journal/rsi/79/2/10.1063/1.2838587
2008-02-14
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Development of a 700MHz low-/high- temperature superconductor nuclear magnetic resonance magnet: Test results and spatial homogeneity improvement
http://aip.metastore.ingenta.com/content/aip/journal/rsi/79/2/10.1063/1.2838587
10.1063/1.2838587
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