A New Method for Variable Temperature Gradient Shimming

✍ Scribed by Clare-Louise Evans; Gareth A. Morris; Adrian L. Davis

• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 214 KB
• Volume: 154
• Category: Article
• ISSN: 1090-7807
• DOI: 10.1006/jmre.2001.2497

✦ Synopsis

Sample convection can severely attenuate the signals observed in pulsed field gradient spin-echo experiments such as those used for gradient shimming. A new class of pulse sequences is proposed, in which a double spin-echo refocuses the phase errors caused by sample convection, enabling gradient shimming to be performed reliably over a wide range of temperatures.