Note on the High Energy Transition in the Ag^<110m> Decay

概要

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In recent studies of the decay of Ag^<110m>, Newbolt and Hamilton report the energy of the highest energy transition as 1384.9±O.9keV. In the work of Katoh and Yoshizawa this value was reported as 1382±1. Suter, Reyes-Suter. Scheuer and Aasa did not report this transition in their careful energy measurements. From the decay scheme, the energy of this transition is predicted as 1383.84±O.25 keV. Suter in a private communication reports that one measurement of this transition was made and its energy determined to 1385.O±O.4 keV. However, since only the one measurement was made, and there was the possibility of some slight nonlinearity, it was not reported in reference. The agreement between this last result and that of Newbolt and Hamilton suggests that the energy is near 1385・0 keV and that the transition may not be properly placed in the decay scheme. This prompted a careful measurement of this energy. The results confirm the decay scheme. The data were taken on an iron-free, doublefocusing spectrometer. The same spectrometer was used in reference 1). The source material was prepared from an Ag^<110m> sample obtained from Oak Ridge National Laboratory. The source was electroplated onto a silver coated Mylar foil. The spectrometer resolution was〜O.35%.
社団法人日本物理学会の論文
1964-07-05