### DECAY OF Ag$sup 104$ AND LEVELS IN Pd$sup 10$sup 4$DECAY OF Ag$sup 104$AND LEVELS IN Pd$sup 10$sup 4$

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 Author Nutley, H. ♦ Gerhart, J. B. Source United States Department of Energy Office of Scientific and Technical Information Content type Text Language English
 Subject Keyword PHYSICS ♦ BETA SPECTROMETERS ♦ DECAY ♦ ELECTRONS ♦ ENERGY LEVELS ♦ GAMMA RADIATION ♦ HALF-LIFE ♦ INTERNAL CONVERSION ♦ ISOMERS ♦ MAGNETISM ♦ PALLADIUM ♦ SCINTILLATIONS ♦ SILVER ♦ SPIN Abstract The radioactive decay of the isomers of Ag/sup 104/ was investigated using scintillation spectrometers and a magnetic BETA ray spectrometer. Half lives of (66 plus or minus 1) and (29.8 plus or minus 0.5) minutes were determined for the spin 5 and spin 2 isomers, respectively. Conversion electrons corresponding to 15 gamma rays assigned to Pd/sup 104/ were observed. Two allowed positron transitions were detected: one of end-point energy (990 plus or minus 10) kev from the spin 5 isomer of Ag/sup 104/; and the other of end-point energy (2705 plus or minus 15) kev from the spin 2 isomer. Gamma-gamma and BETA - gamma coincidences were observed. The experimental data together with data obtained by other investigators were used to determine the spins and parities of the low-lying excited states of Pd/sup 104/. (auth) ISSN 0031899X Educational Use Research Learning Resource Type Article Publisher Date 1960-12-01 Publisher Department Univ. of Washington, Seattle Journal Physical Review Volume Number 120 Organization Univ. of Washington, Seattle