Multipole mixing ratios of transitions in168Er

Time-integral and time-differential γ-γ directional correlation measurements were performed for cascades in168Er populated from the electron-capture decay of168Tm(87d). The168Tm source was dissolved in HF acid to minimize extranuclear perturbations. The results of the time-differential experiment fo...

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Autor principal: Behar, D. Moni
Publicado: 1975
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03402193_v274_n4_p359_Behar
http://hdl.handle.net/20.500.12110/paper_03402193_v274_n4_p359_Behar
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paper:paper_03402193_v274_n4_p359_Behar2023-06-08T15:33:54Z Multipole mixing ratios of transitions in168Er Behar, D. Moni Time-integral and time-differential γ-γ directional correlation measurements were performed for cascades in168Er populated from the electron-capture decay of168Tm(87d). The168Tm source was dissolved in HF acid to minimize extranuclear perturbations. The results of the time-differential experiment for the 448-99.3 keV and 448-198 keV cascades showed agreement with time dependent interaction and gave λ2(1094)=(0.79±0.09) ×107 sec-1. The attenuation factors for the 80 keV level were determined as G22 (80)=0.90±0.01 and G44(80)=0.94±0.01. Only I=4 spin value for the 1094 keV level is consistent with our measurements. The 632, 731, 741, and 816 keV transitions connecting the K=2+ and K = 0+ rotational bands were found to be of almost pure E2 character. The 99.3, 198, 547, 720, 830, and 1277 keV transitions are of practically pure E1 multipolarity. The 448 keV Ml transition has (0.8-0.4 +2.0)%E2 admixture. The results for the 1014-80keV cascade give (23±4)%E3 component in the 1014 keV transition. © 1975 Springer-Verlag. Fil:Behar, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1975 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03402193_v274_n4_p359_Behar http://hdl.handle.net/20.500.12110/paper_03402193_v274_n4_p359_Behar
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description Time-integral and time-differential γ-γ directional correlation measurements were performed for cascades in168Er populated from the electron-capture decay of168Tm(87d). The168Tm source was dissolved in HF acid to minimize extranuclear perturbations. The results of the time-differential experiment for the 448-99.3 keV and 448-198 keV cascades showed agreement with time dependent interaction and gave λ2(1094)=(0.79±0.09) ×107 sec-1. The attenuation factors for the 80 keV level were determined as G22 (80)=0.90±0.01 and G44(80)=0.94±0.01. Only I=4 spin value for the 1094 keV level is consistent with our measurements. The 632, 731, 741, and 816 keV transitions connecting the K=2+ and K = 0+ rotational bands were found to be of almost pure E2 character. The 99.3, 198, 547, 720, 830, and 1277 keV transitions are of practically pure E1 multipolarity. The 448 keV Ml transition has (0.8-0.4 +2.0)%E2 admixture. The results for the 1014-80keV cascade give (23±4)%E3 component in the 1014 keV transition. © 1975 Springer-Verlag.
author Behar, D. Moni
spellingShingle Behar, D. Moni
Multipole mixing ratios of transitions in168Er
author_facet Behar, D. Moni
author_sort Behar, D. Moni
title Multipole mixing ratios of transitions in168Er
title_short Multipole mixing ratios of transitions in168Er
title_full Multipole mixing ratios of transitions in168Er
title_fullStr Multipole mixing ratios of transitions in168Er
title_full_unstemmed Multipole mixing ratios of transitions in168Er
title_sort multipole mixing ratios of transitions in168er
publishDate 1975
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03402193_v274_n4_p359_Behar
http://hdl.handle.net/20.500.12110/paper_03402193_v274_n4_p359_Behar
work_keys_str_mv AT behardmoni multipolemixingratiosoftransitionsin168er
_version_ 1768544596965457920

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