Improved Measurement of Inclusive Radiative B-meson decays

We report a fully inclusive measurement of the flavor changing neutral current decay B'Xsg in the energy range 1.7 GeV'E''2.8 GeV, covering 97% of the total spectrum, where c.m.s is the center of mass system. Using 605 fb-1 of data, we obtain in the rest frame of the B-meson '(B'Xsg:E' > 1.7 GeV) = (3.31+/-0.19+/-0.37+/-0.01)X10-4, where the errors are statistical, systematic and from the boost correction needed to transform from the rest frame of the U(4S) (c.m.s) to that of the B-meson, respectively. We also measure the first and second moments of the photon energy spectrum as functions of various energy thresholds, which extend down to 1.7 GeV. The results are preliminary.