Study of Level Structure in Neutron-Deficient <sup>197</sup>Bi

Zhou Xiaohong; Sun Xiangfu; Guo Yinxiang; Lei Xiangguo; Liu Zhong; Chen Xinfeng; Zhang Yuhu; Jin Hanjuan; Luo Yixiao; Wen Shuxian; Yuan Guanjun; Li Guangsheng; Yang Chunxiang

Chinese Physics C> 1995, Vol. 19> Issue(S4) : 341-347

Study of Level Structure in Neutron-Deficient ¹⁹⁷Bi

1 Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou, China;
2 China Institute of Atomic Energy, Beijing, China

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High-spin states of ¹⁹⁷Bi are populated by bombarding a thick natural Re target with ¹⁶O beams of 100 MeV. Using comprehensive γ-γ-t coincidence measurements, three new isomers of ¹⁹⁷Bi are confirmed, 11 new γ-transitions are identified, and errors in the existing level scheme are corrected. According to the systematic level structure of odd-A Bi isotopes, the configuration and decay property of the new isomer of ¹⁹⁷Bi with t_1/2=19.3±4.9 ns are discussed. The γ-ray angular distributions are also measured. A new level scheme of ¹⁹⁷Bi is proposed.
- isomer ,
- level scheme ,
- γ-γ-t coincidence

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Zhou Xiaohong, Sun Xiangfu, Guo Yinxiang, Lei Xiangguo, Liu Zhong, Chen Xinfeng, Zhang Yuhu, Jin Hanjuan, Luo Yixiao, Wen Shuxian, Yuan Guanjun, Li Guangsheng and Yang Chunxiang. Study of Level Structure in Neutron-Deficient ¹⁹⁷Bi[J]. Chinese Physics C, 1995, 19(S4): 341-347.

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Received: 1995-03-14

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Supported by the National Natural Science Foundation of China.

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of Level Structure in Neutron-Deficient ¹⁹⁷Bi

1 Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou, China;

2 China Institute of Atomic Energy, Beijing, China

Received Date: 1995-03-14

Fund Project: Supported by the National Natural Science Foundation of China.

Abstract: High-spin states of ¹⁹⁷Bi are populated by bombarding a thick natural Re target with ¹⁶O beams of 100 MeV. Using comprehensive γ-γ-t coincidence measurements, three new isomers of ¹⁹⁷Bi are confirmed, 11 new γ-transitions are identified, and errors in the existing level scheme are corrected. According to the systematic level structure of odd-A Bi isotopes, the configuration and decay property of the new isomer of ¹⁹⁷Bi with t_1/2=19.3±4.9 ns are discussed. The γ-ray angular distributions are also measured. A new level scheme of ¹⁹⁷Bi is proposed.

Study of Level Structure in Neutron-Deficient ¹⁹⁷Bi

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Study of Level Structure in Neutron-Deficient ¹⁹⁷Bi

Study of Level Structure in Neutron-Deficient ¹⁹⁷Bi