Cryogenically-cooled high temperature superconducting (HTS) coils for low field MRI

Cheong, Hoon Sin

Publication date

January 2011

Abstract

In low field MRl (<0.5T), the signal-to-noise ratio (SNR) is predominantly degraded by thermal noise of the imaging coil when the sample loading is minimized. This means surface coils made of high temperature superconductors (HTS) should have an SNR significantly higher than their room-temperature copper equivalents due to the reduction in resistivities. While this hypothesis has been reportedly validated, the actual efficacy of HTS coils is still debatable as the benchmark setups in the prior art had an unfavorably large coil-to-sample separation which diminished the SNR yield. This thesis is intended to perform a quantitative validation on the said hypothesis against a novel benchmark setup where the equivalent room-temperature copper coi...

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Cryogenically-cooled high temperature superconducting (HTS) coils for low field MRI

Abstract

Extracted data

Cryogenically-cooled high temperature superconducting (HTS) coils for low field MRI

Abstract

Extracted data

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