Gradiometer Using Middle Loops as Sensing Elements in a Low-Field SQUID MRI System
NASA’s Jet Propulsion Laboratory
Wednesday, April 01 2009
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Device could lead to an MRI diagnostic device for human diagnosis.
A new gradiometer scheme uses middle loops as sensing elements in low-field superconducting quantum interference device (SQUID) magnetic resonance imaging (MRI). This design of a second order gradiometer increases its sensitivity and makes it more uniform, compared to the conventional side loop sensing scheme with a comparable matching SQUID. The space between the two middle loops becomes the imaging volume with the enclosing cryostat built accordingly.
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