A simple, ultralow magnetic field NMR imaging system
β Scribed by Nascimento, G C do; Souza, R E de; Engelsberg, M
- Book ID
- 120793185
- Publisher
- Institute of Physics
- Year
- 1989
- Weight
- 681 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0022-3735
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Laser-polarized (129)Xe and a high-T(c)superconducting quantum interference device (SQUID) are used to obtain magnetic resonance images in porous materials at a magnetic field of 2.3 mT, corresponding to a Larmor frequency of 27 kHz. Image resolution of 1 mm is obtained with gradients of only 1 mT/m
## Abstract The most important and very expensive part of a magnetic resonance imaging setβup is the magnet, which is capable of generating a constant and highly homogeneous magnetic field. Here a new MR imaging technique without the magnet is introduced. This technique uses the earth's magnetic fi