spin-lattice relaxation time


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spin-lattice relaxation time

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The quality of the MRI images depends on three NMR main parameters (the proton spin density, the nuclear spin-lattice relaxation time T1, and the spin-spin relaxation time T2), and the contrast agents (CAs), based on the different distribution of nuclear-spin density along the body, are able to improve the image contrast by increasing (locally) the nuclear relaxation rates [2].
Low field nuclear magnetic resonance is a technique that can be used to measure the hydrogen spin-lattice relaxation time ([T.
The low-field NMR measurements through the hydrogen spin-lattice relaxation time showed that the addition of different contents of PMMA into PVDF produces blends with partial miscibility.
Complementary study is needed to evaluate the extension of the domains detected by the spin-lattice relaxation time.
Hydrogen spin-lattice relaxation times were determined directly by the traditional inversion recovery pulse sequence (180[degrees] - [tau] - 90[degrees]); the instrument software calibrated the 90[degrees] pulse of 4.
T1 is called spin-lattice relaxation time and is a process of the hydrogen elements giving their extra energy to the surrounding tissue.
Proton NMR of maize seed water: the relationship between spin-lattice relaxation time and water content.
Table 2 summarises the results from spin-lattice relaxation time [T.
however, the spin-lattice relaxation times of [alpha], [beta], [gamma]