• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Master's Dissertation
DOI
https://doi.org/10.11606/D.54.1988.tde-10022015-172146
Document
Author
Full name
Maria Angelica Schmidt
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 1988
Supervisor
Committee
Panepucci, Horacio Carlos (President)
Barberis, Gaston Eduardo
Rettori, Carlos
Title in Portuguese
Desenvolvimento de bobinas de radiofreqüência para geração de imagens por ressonância magnética nuclear
Keywords in Portuguese
Não disponível
Abstract in Portuguese
Este trabalho consistiu no desenvolvimento de bobinas de radiofrequência adequadas para geração de imagens de prótons por Ressonância Magnética Nuclear, para um magneto de 2 Tesla (85 MHz), de diâmetro interno 22,5 cm. Para isto foram analisadas diferentes estruturas propostas na Literatura. As estruturas adequadas em geral consistem em circuitos ressonantes com indutâncias e capacitâncias distribuídas pela estrutura. Ressoadores diferentes foram construídos, testados e comparados em seu desempenho. Os resultados obtidos mostraram ser possíveis obter imagens tomográficas de boa qualidade com os ressoadores construídos
Title in English
Not available
Keywords in English
Not available
Abstract in English
In this work we describe and analyze different types of radiofrequency coils for NMR imaging. Our system operates with a superconducting magnet, 22.5 cm bore, at 2.0 Tesla (85 MHz, resonant frequency for protons). Distinct structures, frequently described in the specialized literature, are discussed here. Usually the RF coils proposed are ressonant circuits with distributed inductance and capacitance. We have built different types of resonators and its performance was compared. With the resonators developed here we have been able to obtain proton density images of good quality
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
Publishing Date
2015-02-11
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors
CeTI-SC/STI
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2024. All rights reserved.