کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5406590 1393181 2010 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mellin transform of CPMG data
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Mellin transform of CPMG data
چکیده انگلیسی
This paper describes a new method for computing moments of the transverse relaxation time T2 from measured CPMG data. This new method is based on Mellin transform of the measured data and its time-derivatives. The Mellin transform can also be used to compute the cumulant generating function of ln T2. The moments of relaxation time T2 and ln T2 are related to petro-physical and fluid properties of hydrocarbons in porous media. The performance of the new algorithm is demonstrated on simulated data and compared to results from the traditional inverse Laplace transform. Analytical expressions are also derived for uncertainties in these moments in terms of the signal-to-noise ratio of the data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetic Resonance - Volume 206, Issue 1, September 2010, Pages 20-31
نویسندگان
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