The precise determination of some -ray transition energies in 26Al, 27Al and 55Co
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abstract
The -ray transition energies of 26Al(1058 228 keV), 27Al(2982 0 keV) and55Co(2566 0 keV) have been determined to be 829.429 0.025, 2982.00 0.05 and 2565.789 0.035 keV respectively. The excited states were indirectly produced via resonant proton-capture reactions and de-excited by -ray emission. The -rays were observed with a precisely located Ge(Li) detector that was energy calibrated with standard radioactive sources. The results are of particular importance to the precise determination of relative QEC values for superallowed 0+ 0+ -emitters. 1987.