An automated measurement system for characterization of RF and gradient coil parameters. Academic Article

abstract

• A fully automated laboratory-based measurement system for characterization of coil system parameters is presented. This method uses an inexpensive personal computer (PC)-controlled stepper motor positioning system in conjunction with a network/spectrum analyzer and an analog-to-digital converter (A/D) board that allows high resolution data acquisition in an unattended manner. A graphical interface was created for complete control of stepper motor movement, measurement, and data acquisition. The system is capable of performing a wide range of measurements that can, either individually or combined, characterize radiofrequency (RF) and gradient coils used in MRI. Measurement methods, theory, and results for conductor and shield current distributions, mutual impedance, and magnetic fields are given. Comparisons with theoretical calculations are included to validate the accuracy and utility of the system.

authors

• Porter, Jay
• Wright, Steven

published proceedings

• J Magn Reson Imaging

author list (cited authors)

• Boyer, J. S., Wright, S. M., & Porter, J. R.

citation count

• 6

complete list of authors

• Boyer, JS||Wright, SM||Porter, JR

publication date

• May 1998

publisher

• Wiley  Publisher

published in

• Journal of Magnetic Resonance Imaging  Journal

keywords

• Calibration
• Computer Graphics
• Computer Systems
• Data Collection
• Humans
• Magnetic Resonance Imaging
• Microcomputers
• Physical Phenomena
• Physics
• Signal Processing, Computer-Assisted
• Software

PubMed Central ID

• 9626895

Digital Object Identifier (DOI)

• 10.1002/jmri.1880080334

start page

• 740

end page

• 747

volume

• 8

issue

• 3

URL

• http://dx.doi.org/10.1002/jmri.1880080334