  The usual approach to considerations of apin relaxation and frequency shifts
due to fluctuating fields is through the density matrix Slichter. Here we treat
the problem of the influence of fluctuating fields on a spin 1/2 system based
on direct solution of the Schroedinger equation in contrast to the usual
treatment. Our results are seen to be in agreement with the known results in
the literature McGregor, Slichter, Red2, CSH, as they must, but our derivation
directly from the Schroedinger equation allows us to see the role of the
necessary assumptions in a somewhat clearer way.
