Gamma transitions from the beta- decay of 155Sm
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2003
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LATINAMERICAN SYMPOSIUM ON NUCLEAR PHYSICS, 5th; REUNIAO DE TRABALHO SOBRE FISICA NUCLEAR NO BRASIL, 26
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The purpose of this work is to investigate the states in 155Eu by beta decay of 155Sm to obtain complementary
experimental information to elucidate the population of low energy levels (below 2MeV) in this nucleus. This
includes an extensive gamma-ray measurement, using high resolution detectors, with high statistics in the region
from 30 keV to 1.5 MeV. According to the last compilation by Firestone [1] basically, the results of two studies [2,3]
established the features of the beta (-) decay scheme of 155Sm. Analyzing these works, some controversy, regarding
the presence and subsequent placement, of gamma transitions in the level scheme were not solved when the data
from beta decay are compared with nuclear reactions studies [1]. Besides a number of gamma transitions must be
confirmed and nuclear parameters such as energy , spin and parity of excited levels as well as energy and intensity
of gamma transition still need verification. In an attempt to propose a well established decay schema of 155Sm
motivated us to perform an investigation of excited levels in 155Eu. The energies of 80 gamma rays have been
determined, several for the first time. These results were compared with those published [1] and our gamma-rays
energies are given more accurate values.
Como referenciar
RAELE, M.P.; ZAMBONI, C.B.; GENEZINI, F.A.; MEDEIROS, J.A.G. Gamma transitions from the beta- decay of 155Sm. In: LATINAMERICAN SYMPOSIUM ON NUCLEAR PHYSICS, 5th; REUNIAO DE TRABALHO SOBRE FISICA NUCLEAR NO BRASIL, 26, Sept. 1-5, 2003, Santos, SP. Abstracts... p. 66. Disponível em: http://repositorio.ipen.br/handle/123456789/21850. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.