科研之友
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摘要
The evaluated experimental data are presented for 15 known nuclides of mass 100 (Kr,Rb,Sr,Y,Zr,Nb,Mo, Tc,Ru,Rh,Pd,Ag,Cd,In,Sn). High spin excitations are known for Sr-100, Zr-100, Mo-100, Tc-100, Ru-100, Rh-100, Pd-100, Ag-100, and Cd-100. The neutron capture data are available for Tc-100 and Ru-100, Particle transfer data exist for structures in Nb-100, Mo-100, Tc-100 and Ru-100. The two-neutrino beta beta decay mode in Mo-100 is fully established with measured half-life and population of the g.s. and 1130,0+ state in Ru-100. The absolute energy of the isomer in Nb-100 is now well established from recent Penning-trap mass measurements.
Excited state data are nonexistent for Kr-100, Rb-100 and Sn-100; and only one excited state is known in In-100. Except for isotopic identification, no-information is available for the decay of the Kr-100 isotope and very little is known about the decay properties of the Sn-100 isotope. In the case of Pd-100, there are many recent studies of high-spin structures but the agreement in the orderings of the gamma-ray cascades and gamma-ray inventory between various studies remains poor at high (>9 Mev) excitation energies. The energy difference between the g.s. an isomer in Y-100 has recently been precisely measured in Penning-Penning-trap mass measurements, however, the assignments of the two previously known half-lives and J pi's to the respective states (g.s. and the 145-keV isomer) in Y-100 remains to be established. Static moments in Y-100 have also been recently measured for one of these states in Y-100 but it is not definitely known as to which of the two states (g.s. or the isomer) is connected with these measurements.
- 出版日期2008-2
