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It is named in contrast to T, the spin-spin relaxation time.
This is called Spin-spin relaxation time or 'transverse relaxation'.
The overall motion of the polymer molecules is shown to be anisotropic in nature by including the spin–spin relaxation data in the analysis.
A Hahn echo decay experiment can be used to measure the spin-spin relaxation time, as shown in the animation below.
Like spin-lattice relaxation, spin-spin relaxation can be studied using a molecular tumbling autocorrelation framework.
Unlike spin-lattice relaxation, considering spin-spin relaxation using only a single isochromat is trivial and not informative.
In simple cases, the intensity of the echo relative to the initial signal is given by e where T is the time constant for spin-spin relaxation.
But for Spin-Spin relaxation, the relaxation time of Spin S is a very important parameter.
The spin-spin relaxation time, also called the transverse relaxation time, is related to homogeneous and inhomogeneous broadening.
Spin waves, magnons (spin-spin relaxation)
In that the beat frequency range is very small relative to the average rotation rate , spin-spin relaxation is not heavily dependent on magnetic field strength.
The ratio of the spin–spin relaxation times of the iodine nuclei in the two phases is in agreement with the ratio predicted by a second moment calculation.
We also consider the incorporation of active spoiler gradients in SPRITE for visualization of samples with long spin-spin relaxation times, T2.
The value of the spin–spin relaxation time T2 (as determined from the point where the 19F FID signal has decayed to 1/e of its maximum amplitude) is approximately 75 μs.
Duzenli, C., Sloboda, R., and Robinson, D.: A spin-spin relaxation rate investigation of the gelatin ferrous sulphate NMR dosimeter.
The magnetic resonance spin-lattice and spin-spin relaxation rates (1/T1 and 1/T2 respectively) of the dosimeter are related to the concentration of Fe3+ produced, and hence to absorbed dose.
Line-broadening of the C-6 signal of the latter residue indicates that spin–spin relaxation of the 13C nucleus of this sulfated primary carbinol group is more effective than for the 13C nuclei of the sugar rings.
The 1H nuclear magnetic resonance spin-lattice and spin–spin relaxation rate enhancements induced by the gadolinium(III) ion were measured in solutions of glycine, alanine, and sodium lactate containing different amounts of Gd(III).
New room temperature measurements of the chlorine spin–lattice and spin–spin relaxation times in the dense paramagnetic insulator K2ReCl6 yield hyperfine parameters parallel and perpendicular to the Re—Cl bond which are in acceptable agreement with the more accurate spectroscopic values extracted from nuclear magnetic resonance measurements.