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'Proton-Free' Coil for Magnetic Resonance Imaging of Porous Media

Title: A 'Proton-Free' Coil for Magnetic Resonance Imaging of Porous Media.
Name(s): Seshadhri, Madhumitha, author
Foo, Simon Y., professor directing thesis
Brey, William W., professor co-directing thesis
Andrei, Petru, committee member
Arora, Rajendra K., committee member
Department of Electrical and Computer Engineering, degree granting department
Florida State University, degree granting institution
Type of Resource: text
Genre: Text
Issuance: monographic
Date Issued: 2011
Publisher: Florida State University
Place of Publication: Tallahassee, Florida
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: Nuclear Magnetic Resonance Imaging or MRI is a non invasive imaging technique which exploits the inherent magnetic field produced by nuclei of atoms with a nonzero spin. Since hydrogen is the most abundant atom, it forms the basis of NMR imaging techniques. The transparency of many materials to RF irradiation coupled with the access to a large variety of contrast parameters and the non-destructiveness of the method may make it highly useful in materials imaging. In a number of situations there is a critical need to evaluate the distribution of small amounts of water adsorbed throughout a solid sample. One of these pertains to Spray-On Foam Insulation (SOFI), a thermal insulation material used on liquid hydrogen and oxygen tanks on space shuttles. The basic components of an NMR spectrometer are the magnet, amplifiers, transceiver and imaging coils. In MRI, imaging coils are radio-frequency coils that serve two purposes: the excitation of nuclear spins and the detection of nuclear precession. This thesis aims to successfully design a RF coil for 1H imaging of foam and the water trapped within it. The single turn solenoid is probably the most simple and efficient RF coil design. This type was selected as it has high sensitivity and uniform homogeneity throughout the volume of the coil. The coil has been optimized in terms of dimension, feasibility, strategies for tuning and matching and performance.
Identifier: FSU_migr_etd-1806 (IID)
Submitted Note: A Thesis submitted to the Department of Electrical and Computer Engineering in partial fulfillment of the requirements for the degree of Master of Science.
Degree Awarded: Summer Semester, 2011.
Date of Defense: June 28, 2011.
Keywords: proton free solenoid, shuttle foam, bound water distribution
Bibliography Note: Includes bibliographical references.
Advisory Committee: Simon Y. Foo, Professor Directing Thesis; William W. Brey, Professor Co-Directing Thesis; Petru Andrei, Committee Member; Rajendra K. Arora, Committee Member.
Subject(s): Electrical engineering
Computer engineering
Persistent Link to This Record:
Owner Institution: FSU

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Seshadhri, M. (2011). A 'Proton-Free' Coil for Magnetic Resonance Imaging of Porous Media. Retrieved from