Abstract
In magnetic resonance imaging and spectroscopy, knowledge of the magnetic field gradient behavior is very important. This work describes a simple way to characterize the temporal and spatial dependence of the main magnetic field when a gradient is switched. Records are performed with a home-built magnetometer. This device is controlled by a personal computer for recording and processing the NMR signals from an array of small probes spatially distributed and switched by the magnetometer. We present results of measurements on a 2-T superconducting magnet. These results show the residual defects of an active shielded gradient coils system.
Original language | English |
---|---|
Pages (from-to) | 53-57 |
Number of pages | 5 |
Journal | Magnetic Resonance Materials in Physics, Biology, and Medicine |
Volume | 5 |
Issue number | 1 |
Publication status | Published - 1997 |
Keywords
- Eddy-currents
- Magnetometer
- Nuclear magnetic resonance
- Switched gradients
ASJC Scopus subject areas
- Biophysics
- Genetics