作者: J. Olkowsky , M. Le Pape , I. Gratot , L. Cohen
DOI: 10.1016/0029-5582(59)90026-4
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摘要: Abstract An isotope of gadolinium has been obtained from (α, x n) reactions on 144 Sm. The half-life is measured to be 24±1 min. It decays by electron capture and β + -emission. branching ratio X K 35 %. Beta-energy, determined absorption method, indicates that E max = 2.5 MeV. This shows a 780 keV γ-ray. Its mass or 145. Eu does not present the 18 minute given in tables 1,2 ).