Location of the181Os isomeric state
The decay of181Ir has been studied on-line with mass-separated sources from the ISOCELE facility. The level scheme of181 Os has been established. The isomeric state has been located at 48.9 keV above the ground state. Thus the isomeric and ground states are identified as the 7/2−(T1/2 =2.7 m) and 1/2−(T1/2=105 m) levels respectively.