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Stripe sensor tomography

Barbic, Mladen and Vitava, Lvcian and Barrett, Christopher P. and Emery, Teresa H. and Scherer, Axel (2008) Stripe sensor tomography. Review of Scientific Instruments, 79 (3). Art. No. 033705. ISSN 0034-6748.

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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.

Item Type:Article
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).
Subject Keywords:electromagnetic devices, Hall effect devices, image sensors, magnetic resonance imaging, magnetoresistive devices, photodetectors, SQUIDs
Issue or Number:3
Record Number:CaltechAUTHORS:BARrsi08
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:9770
Deposited By: Archive Administrator
Deposited On:14 Mar 2008
Last Modified:26 Dec 2012 09:52

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