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

(EC/β⁺) Decay of¹³⁰Nd and¹⁴⁰Tb

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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通讯作者:陈斌, bchen63@163.com

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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 of¹³⁰Nd and¹⁴⁰Tb

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 and¹⁴⁰Tb were produced using enriched targets⁹⁶Ru and¹⁰⁶Cd, respectively,bombarded by³⁶Ar 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 of¹³⁰Nd 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 nucleus¹³⁰Pr were speculated tentatively. The previous simple EC/β⁺decay scheme of¹⁴⁰Tb was revised, and the spin-parity of its groundstate was assigned to be 7⁺.

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(EC/β⁺) Decay of¹³⁰Nd and¹⁴⁰Tb

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