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- Title
Investigation of the effect of resonant environment (Mössbauer screen) on the observed half-life of the <sup>119 m1</sup>Sn isomer ( E = 23.8 keV, T <sub>1/2</sub> ∼ 18 ns).
- Authors
Loginov, Yu.; Egorov, A.; Malyutenkov, E.; Malyutenkova, S.; Martynov, V.
- Abstract
In order to analyze the effect of resonant environment on the γ decay of excited nuclei, the half-life of the 119 m1Sn isomer ( E = 23.8 keV, T 1/2 ∼ 18 ns), which appears from the decay of the 119 m2Sn state ( E = 89 keV, T 1/2 ∼ 293 d), has been measured by the e-γ coincidence method on samples consisting of the mixture of tin oxides containing the 119Sn stable nucleus and 119 m2Sn radioactive nuclei with various values of the 119SnO2/119 m2SnO2 ratio. For the samples, where this ratio is equal to 6.2 × 104, 1.2 × 106, 6.5 × 106, and 1.7 × 107, the half-life T 1/2is equal to 18.69(2), 18.71(2), 18.91(5), and 19.43(4) ns, respectively. For the reference sample (a metal with a 119Sn/119 m2Sn ratio of 1.5 × 105), the value T 1/2 = 18.68(6) ns is obtained.
- Subjects
TIN; TIN alloys; TINPLATE; OXIDES; COINCIDENCE; SIMULTANEITY (Physics)
- Publication
JETP Letters, 2008, Vol 87, Issue 1, p4
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364008010025