Active compensation of rf-pulse transients

J Magn Reson. 2009 Apr;197(2):242-4. doi: 10.1016/j.jmr.2008.12.012. Epub 2008 Dec 24.

Abstract

A new approach to compensate rf-pulse transients is proposed. Based on the idea of the response theory of a linear system, a formula is derived to obtain the required excitation voltage profile back from the intended target rf-pulse shape. The validity of the formula is experimentally confirmed by monitoring the rf-field created inside the sample coil with a pickup coil. Since this approach realizes accurate rf-pulse shapes without reducing the Q-factor of the tank circuit of the probe, it can be used not only to suppress the transient tail of the rf-pulse, but also as a general concept for accurate rf-pulsing.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Algorithms
  • Magnetic Resonance Spectroscopy / methods*
  • Magnetic Resonance Spectroscopy / statistics & numerical data*
  • Normal Distribution
  • Reproducibility of Results