- Tytuł:
- Nuclear Data Evaluation for ²¹⁷Th
- Autorzy:
-
Nafee, S.
Al-Ramady, A.
Shaheen, S. - Powiązania:
- https://bibliotekanauki.pl/articles/1398746.pdf
- Data publikacji:
- 2016-04
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
21.10.-k
23.20.-g
23.35.+g
29.30.-h - Opis:
- Thorium-217 was produced by the reaction ¹⁷⁰Er (⁵⁰Ti, xn) ^{220-x}Th. The nuclei were studied by Evaporation Residues gamma-alpha-gamma coincidence measurements (ER-γ-α-γ). The evaluated decay data for the ²¹⁷Th nuclide resulted from the above interaction is presented in this report. Three delayed γ-transitions (309, 673 and 1269 keV) have been measured from the ER-γ(-γ)-α correlations and γ-γ coincidences. They were assigned to ²¹⁷Th, based on the level systematics of the N=127 isotones. The evaluated half-lives T_{1/2} for these levels were assigned to be 64-₂₂⁺⁶⁴, 69-₁₇⁺³² and 66-₁₅⁺²⁷ μs, respectively. In addition, an isomeric state (2252+x) keV is presented in the ²¹⁷Th decay scheme between the 2252 (21/2+) and 2362 (25/2+) keV. Q (α) has been updated based on the recent published work of the Atomic Mass Evaluation AME2012 as well. Moreover, the total conversion electrons as well as the K-Shell to L-Shell, L-Shell to M-Shell and L-Shell to N-Shell conversion electron ratios have been calculated using BrIcc code v2.3.
- Źródło:
-
Acta Physica Polonica A; 2016, 129, 4; 669-672
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł