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Published March 1, 2008 | public
Journal Article Open

Stripe sensor tomography


We introduce a general concept of tomographic imaging for the case of an imaging sensor that has a stripelike shape. We first show that there is no difference, in principle, between two-dimensional tomography using conventional electromagnetic or particle radiation and tomography where a stripe sensor is mechanically scanned over a sample at a sequence of different angles. For a single stripe detector imaging, linear motion and angular rotation are required. We experimentally demonstrate single stripe sensor imaging principle using an elongated inductive coil detector. By utilizing an array of parallel stripe sensors that can be individually addressed, two-dimensional imaging can be performed with rotation only, eliminating the requirement for linear motion, as we also experimentally demonstrate with parallel coil array. We conclude that imaging with a stripe-type sensor of particular width and thickness (where the width is much larger than the thickness) is resolution limited only by the thickness (smaller parameter) of the sensor. We give examples of multiple sensor families where this imaging technique may be beneficial such as magnetoresistive, inductive, superconducting quantum interference device, and Hall effect sensors, and, in particular, discuss the possibilities of the technique in the field of magnetic resonance imaging.

Additional Information

©2008 American Institute of Physics. Received 26 October 2007; accepted 18 February 2008; published 12 March 2008. This material was based upon work supported by the National Science Foundation under the NSF-CAREER Award Grant No. 0349319, NSF-ECS Award Grant No. 0622228, NIH Award No. R01-HG0026440, as well as the California State University Long Beach Scholarly and Creative Activities Award (SCAC).


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