@article {393,
	title = {Effects of diffusion on magnetic resonance imaging of laser-polarized xenon gas},
	journal = {Journal of Chemical Physics},
	volume = {108},
	year = {1998},
	note = {J Chem PhysZh114Times Cited:30Cited References Count:24},
	month = {Apr 15},
	pages = {6233-6239},
	abstract = {<p>Molecular diffusion during the application of magnetic field gradients can distort magnetic resonance images. A systematic characterization of these distortions in one dimension was performed using highly spin-polarized xenon gas. By varying the strength of the applied gradient and the geometric dimension of the sample, the evolution of these image distortions between the regimes of strong and weak diffusion was observed. These results are compared with numerical simulations. By directly measuring the displacement distribution of the polarized xenon atoms, it is shown that in the weak-diffusion regime the image distortions originate from the restricted diffusive motion near the sample boundaries, in agreement with previous theoretical work. Additionally, it is shown that the effects of diffusion can be utilized to enhance the contrast between the boundaries and bulk in the images of polarized gas samples, and thus may be exploited as a means of boundary detection in such systems. (C) 1998 American Institute of Physics. [S0021-9606(98)02915-8].</p>
},
	keywords = {xe-129},
	isbn = {0021-9606},
	doi = {Doi 10.1063/1.476030},
	url = {<Go to ISI>://WOS:000073073700018},
	author = {Song, Y. Q. and Goodson, B. M. and Sheridan, B. and de Swiet, T. M. and Pines, A.}
}
