*
Estimate the spin-lattice relaxation time constant based on the following plot of M*_{z}(t).

The data appears to have the functional form:

M_{z} = M_{o}
( 1 - 2e^{-t/T1} )
If we set M_{z} = 0, and solve for T_{1} when we have:

0 = M_{o} ( 1 - 2e^{-t/T1} )
1=2e^{-t/T1}

*ln*(1/2) = -t/T_{1}

T_{1} = -t/*ln*(1/2)

Setting t = 2 seconds, we obtain T_{1} = 2.9 seconds.