Half-Lives of Levels in 93Sr and 95Sr

Kiyoshi Kawade; Hiroshi Yamamoto; Masaya Yoshida; Tetsuro Ishii; Keigo Mio; Toshio Katoh; Jian-Zhi Ruan; Kotoyuki Okano; Yoichi Kawase; K. Sistemich; G. Battistuzzi; H. Lawin

doi:10.1143/JPSJ.55.1102

Half-Lives of Levels in ⁹³Sr and ⁹⁵Sr

Kiyoshi Kawade, Hiroshi Yamamoto, Masaya Yoshida, Tetsuro Ishii, Keigo Mio, Toshio Katoh, Jian-Zhi Ruan, Kotoyuki Okano, Yoichi Kawase, K. Sistemich, G. Battistuzzi, H. Lawin

Author information

Kiyoshi Kawade
Department of Nuclear Engineering, Nagoya University
Hiroshi Yamamoto
Department of Nuclear Engineering, Nagoya University
Masaya Yoshida
Department of Nuclear Engineering, Nagoya University
Tetsuro Ishii
Department of Nuclear Engineering, Nagoya University
Keigo Mio
Department of Nuclear Engineering, Nagoya University
Toshio Katoh
Department of Nuclear Engineering, Nagoya University
Jian-Zhi Ruan
Department of Physics, Rikkyo University
Kotoyuki Okano
Research Reactor Institute, Kyoto University
Yoichi Kawase
Research Reactor Institute, Kyoto University
K. Sistemich
Institut für Kernphysik, Kernforschungsanlage Jülich
G. Battistuzzi
Institut für Kernphysik, Kernforschungsanlage Jülich
H. Lawin
Institut für Kernphysik, Kernforschungsanlage Jülich

Keywords: RADIOACTIVITY ⁹³Rb, ⁹⁵Rb[from ²³⁵U(n, f): Mass separation]; measured βγ(t), ICC, ⁹³Sr deduced J^π deduced B(E2), LEPS, HpGe, Ge(Li), plastic scintillation detectors.

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1986 Volume 55 Issue 4 Pages 1102-1107

DOI https://doi.org/10.1143/JPSJ.55.1102

Details

Abstract

The half-life and the multipolarity for the 213 keV transition in ⁹³Sr have been determined to be (4.6±0.3) ns and E2 (≤15%Ml) from β-γ delayed and x-γ coincidences, respectively. The half-life for the 204 keV transition in ⁹⁵Sr was also determined to be (20.9±0.5) ns. The reduced transition probabilities are deduced as B(E2)=(261₋₄₃⁺¹⁷)e²fm⁴ for the 213 keV transition and B(E2)=(71±2)e²fm⁴ for the 204 keV transition. These B(E2) values are comparable to the Weisskopf estimates and to those for the similar transitions in the neighbouring nuclei.

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