(EC/β+) Decay of 130Nd and 140Tb

YU Yong; XIE Yuan-Xiang; XU Shu-Wei; LI Zhan-Kui; PAN Qiang-Yan; WANG Chun-Fang; XING Jian-Ping; ZHANG Tian-Mei

Chinese Physics C> 2001, Vol. 25> Issue(2) : 108-114

(EC/β⁺) Decay of ¹³⁰Nd and ¹⁴⁰Tb

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

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Abstract：
Isotopes,¹³⁰Nd and ¹⁴⁰Tb were produced using enriched targets ⁹⁶Ru and ¹⁰⁶Cd, respectively,bombarded by ³⁶Ar ion beam. The two nuclides were identified and studied by a He-jet tape transport system in combination with "X-γ" and "γ-γ" coincidence measure- ments. The half-life of ¹³⁰Nd was determined to be (13±2)s. The EC/β⁺ decay scheme of 130Nd was proposed for the first time, and the spins and parties of the ground-state and observed low-lying states in the daughter nucleus ¹³⁰Pr were speculated tentatively. The previous simple EC/β⁺ decay scheme of ¹⁴⁰Tb was revised, and the spin-parity of its groundstate was assigned to be 7⁺.

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YU Yong, XIE Yuan-Xiang, XU Shu-Wei, LI Zhan-Kui, PAN Qiang-Yan, WANG Chun-Fang, XING Jian-Ping and ZHANG Tian-Mei. (EC/β⁺) Decay of ¹³⁰Nd and ¹⁴⁰Tb[J]. Chinese Physics C, 2001, 25(2): 108-114.

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Received: 2000-01-26
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

(EC/β⁺) Decay of ¹³⁰Nd and ¹⁴⁰Tb

Corresponding author: YU Yong,

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

Received Date: 2000-01-26

Accepted Date: 1900-01-01

Available Online: 2001-02-05

Abstract: Isotopes,¹³⁰Nd and ¹⁴⁰Tb were produced using enriched targets ⁹⁶Ru and ¹⁰⁶Cd, respectively,bombarded by ³⁶Ar ion beam. The two nuclides were identified and studied by a He-jet tape transport system in combination with "X-γ" and "γ-γ" coincidence measure- ments. The half-life of ¹³⁰Nd was determined to be (13±2)s. The EC/β⁺ decay scheme of 130Nd was proposed for the first time, and the spins and parties of the ground-state and observed low-lying states in the daughter nucleus ¹³⁰Pr were speculated tentatively. The previous simple EC/β⁺ decay scheme of ¹⁴⁰Tb was revised, and the spin-parity of its groundstate was assigned to be 7⁺.

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(EC/β⁺) Decay of ¹³⁰Nd and ¹⁴⁰Tb

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(EC/β⁺) Decay of ¹³⁰Nd and ¹⁴⁰Tb

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