The decay of Mo-101 to levels in Tc-101 has been studied using the three-pa
rameter (gamma-gamma-t) coincidence system of HpGe-HpGe detectors. From the
coincidence data, the new decay scheme was constructed. The previously rep
orted 104. 70, 105.95 and 774. 15 keV gamma rays were observed, and have be
en assigned to the decay scheme for the first time. A newly observed 1508.0
1 keV gamma ray has also been assigned to the scheme for the first time. Th
e intensities of beta(-) and the values of log ft to most levels were calcu
lated.