کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5407063 1393201 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effective and accurate single-shot NMR diffusion experiments based on magnetization grating
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Effective and accurate single-shot NMR diffusion experiments based on magnetization grating
چکیده انگلیسی
Current single-shot diffusion methods based on magnetization gratings suffer from low sensitivity due to small rf tip angles and, consequently, from inefficient use of the total equilibrium magnetization. Here, we propose and illustrate the use of a slightly modified form of the magnetization encoding scheme OUFIS for single-shot diffusion experiments. In a detailed theoretical and experimental analysis, we compare the performance of the proposed method to other encoding schemes such as the one-phase or two-phase DANTE and conclude that the OUFIS-based experiment is a superior one. The primary reason is that this scheme allows one to use a larger total pulse area. Hence, one can encode a far larger portion of the initial magnetization into a frequency grating before the onset of various nonlinear effects. In the experimental illustration, we present a single-shot measurement of multicomponent diffusion.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetic Resonance - Volume 195, Issue 2, December 2008, Pages 123-128
نویسندگان
, ,