PMID: 11909399Mar 23, 2002Paper

129Xe-Xe molecular spin relaxation

Physical Review Letters
B ChannT G Walker

Abstract

We identify the formation of bound 129Xe-Xe molecules as the primary fundamental spin-relaxation process at densities below 14 amagat. Low pressure Xe relaxation rate measurements as a function of gas composition show that Xe-Xe molecular relaxation contributes 1/T1 = 1/4.1 h to the total observed relaxation rate. The measured rate is consistent with theoretical estimates deduced from previously measured NMR chemical shifts. At atmospheric pressure the molecular relaxation is more than an order of magnitude stronger than binary relaxation. Confusion of molecular and wall relaxation mechanisms has historically caused wall relaxation rates to be overestimated.

Citations

May 28, 2005·Magnetic Resonance Imaging·Moyoko SaitoToshiharu Nakai
Aug 16, 2013·Proceedings of the National Academy of Sciences of the United States of America·Panayiotis NikolaouBoyd M Goodson
Aug 7, 2009·The Journal of Chemical Physics·Natalia LisitzaEduard Y Chekmenev
Jan 7, 2009·The Journal of Chemical Physics·Zackary I Cleveland, Thomas Meersmann
Jun 25, 2008·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Zackary I Cleveland, Thomas Meersmann
Mar 28, 2009·Physical Chemistry Chemical Physics : PCCP·Matti HanniJuha Vaara
Jan 17, 2015·Magnetic Resonance in Chemistry : MRC·Włodzimierz Makulski
Nov 30, 2004·Physics in Medicine and Biology·Ana-Maria Oros, N Jon Shah
Jun 29, 2011·Physical Chemistry Chemical Physics : PCCP·Matti HanniJuha Vaara
Jun 21, 2019·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Elianna A BierBastiaan Driehuys
Feb 27, 2021·Progress in Nuclear Magnetic Resonance Spectroscopy·Helen MarshallJim M Wild
Aug 29, 2014·Physical Review Letters·K TullneyL Trahms
Apr 15, 2021·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Christian T McHughRosa T Branca

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