Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Unique second-forbidden β transitions : Decay of 137Cs. / Valiev, F. F.
в: Bulletin of the Russian Academy of Sciences: Physics, Том 71, № 6, 30.07.2007, стр. 827-831.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Unique second-forbidden β transitions
T2 - Decay of 137Cs
AU - Valiev, F. F.
PY - 2007/7/30
Y1 - 2007/7/30
N2 - The intensity of the 283.4-keV γ line in the decay of 137Cs has been measured. The value obtained is used to determine the probability of the unique second-forbidden β transition of the 7/2+ → 1/2+ type: (8.7 ± 2.0) ×10-4% of the number of decays; this value corresponds to log f2un t = 16.45 ± 0.12. The intensity of the possible E 5 transition at 378.3 keV is estimated to be < 0.9 × 10-4%. The technique for determining the values of log f2un t in calculations of the tensor matrix elements in the Cartesian and spherical coordinate systems is discussed. The possible intensity of the unique second-forbidden β transition between the ground states of 129I and 129Xe is estimated to be Iβ ≈ 0.1% of the number of decays of 129I.
AB - The intensity of the 283.4-keV γ line in the decay of 137Cs has been measured. The value obtained is used to determine the probability of the unique second-forbidden β transition of the 7/2+ → 1/2+ type: (8.7 ± 2.0) ×10-4% of the number of decays; this value corresponds to log f2un t = 16.45 ± 0.12. The intensity of the possible E 5 transition at 378.3 keV is estimated to be < 0.9 × 10-4%. The technique for determining the values of log f2un t in calculations of the tensor matrix elements in the Cartesian and spherical coordinate systems is discussed. The possible intensity of the unique second-forbidden β transition between the ground states of 129I and 129Xe is estimated to be Iβ ≈ 0.1% of the number of decays of 129I.
UR - http://www.scopus.com/inward/record.url?scp=34547137677&partnerID=8YFLogxK
U2 - 10.3103/S1062873807060159
DO - 10.3103/S1062873807060159
M3 - Article
AN - SCOPUS:34547137677
VL - 71
SP - 827
EP - 831
JO - Bulletin of the Russian Academy of Sciences: Physics
JF - Bulletin of the Russian Academy of Sciences: Physics
SN - 1062-8738
IS - 6
ER -
ID: 51040296