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Abstract #0701

Plasma based MRI

Sebastian A. Aussenhofer 1 and Andrew G. Webb 1

1 C.J. Gorter Center for High Field MRI, Leiden University Medical Center, Leiden, South-Holland, Netherlands

Here, we present a totally new concept for an MRI coil, which uses reconfigurable conducting plasma rather than a fixed-geometry conductor. A plasma has many advantageous properties in terms of forming an MRI coil, including that the plasma can be turned on-and-off whenever needed (unlike a metal conductor which is always physically present), the resistance of the plasma decreases with increased current passing through the plasma, and the interactions between the precessing magnetization and the plasma can be manipulated by varying the relationship between the plasma frequency ( lower case Greek omega p ) and the Larmor frequency ( lower case Greek omega 0 ).

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