The decay of 77Ge and 77Gem
Publication date
1965-08
Authors
Kooi, J.B. van der
Bold, H.J. van den
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Supervisors
DOI
Document Type
Article
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Abstract
Gamma rays in the decay of 77Ge and 77Gem were investigated with scintillation spectrometers using γ-γ coincidence, sum-coincidence and γ-γ angular correlation techniques. About fifty γ transitions were identified. A decay scheme is proposed including the following 77As levels:
215&2 (#-), 263&2 (&-), (325&15), 473-13 (g+), 632&2 (#+), 755h4, (925*15),
1195f3 (8). 1280f8, 1457&6, 155714, 17OOf15, 2001&6, 2109&-IO, 2232f9, 2347f4,
(2445& 15) and 2565&25 keV. Six of these levels have not been reported before.
The 77Gem half-life is 59±2 s.
Keywords
RADIOACTIVITY 77Ge [from 76Ge(d, p) and 76Ge(n, γ)], measured T1/2, Eγ, γγ, γγ-delay, γγ(θ), 77As deduced levels, J, π., Enriched targets