Indirect Measurement of <sup>95</sup>Zr(n, &gamma;)<sup>96</sup>Zr

YAN Shengquan; LI Zhihong; WANG Youbao; K. Nishio; H. Maki; SU Jun; LI Yunju; I. Nishinaka; K. Hirose; HAN Yinlu; GUO Bing; ZENG Sheng; LIAN Gang; CHEN Yongshou; LIU Weiping

doi:10.11804/NuclPhysRev.34.03.420

⁹⁵Zr(n, γ)⁹⁶Zr cross section is important for the study of stellar evolution and heavy elements nucleosynthesis because the reaction is the only way to produce the ⁹⁶Zr in Asymptotic giant branch stars. The direct measurement of ⁹⁵Zr(n, γ)⁹⁶Zr is very difficult due to the short half-life of ⁹⁵Zr, 64 days. The surrogate ratio method was carried out to measure ⁹⁵Zr(n, γ)⁹⁶Zr cross sections. We measured the ⁹⁴Zr(¹⁸O, ¹⁶Oγ)⁹⁶Zr and ⁹⁰Zr(¹⁸O, ¹⁶Oγ)⁹²Zr reactions and obtained the γ-decay probability ratio of compound nuclei ⁹⁶Zr^* and ⁹²Zr^*. The ⁹⁵Zr(n, γ)⁹⁶Zr cross section is determined by the obtained ratio multiplying the known ⁹¹Zr(n, γ)⁹²Zr cross section at E_n=0~8 MeV.

Indirect Measurement of ⁹⁵Zr(n, γ)⁹⁶Zr

1. China Institute of Atomic Energy, Beijing 102413, China;

2. Japan Atomic Energy Agency, Tokai, Naka, Ibaraki 319-1195, Japan

Funds: National Key Research and Development Plan(2016YFA0400502); National Natural Science Foundation of China (11375269, 11490560, 11321064); National Basic Research Program of China(973 Program)(2013CB834406)

Received Date: 2016-11-21

Rev Recd Date: 2017-04-13

Publish Date: 2017-07-18

Key words:

Abstract: ⁹⁵Zr(n, γ)⁹⁶Zr cross section is important for the study of stellar evolution and heavy elements nucleosynthesis because the reaction is the only way to produce the ⁹⁶Zr in Asymptotic giant branch stars. The direct measurement of ⁹⁵Zr(n, γ)⁹⁶Zr is very difficult due to the short half-life of ⁹⁵Zr, 64 days. The surrogate ratio method was carried out to measure ⁹⁵Zr(n, γ)⁹⁶Zr cross sections. We measured the ⁹⁴Zr(¹⁸O, ¹⁶Oγ)⁹⁶Zr and ⁹⁰Zr(¹⁸O, ¹⁶Oγ)⁹²Zr reactions and obtained the γ-decay probability ratio of compound nuclei ⁹⁶Zr^* and ⁹²Zr^*. The ⁹⁵Zr(n, γ)⁹⁶Zr cross section is determined by the obtained ratio multiplying the known ⁹¹Zr(n, γ)⁹²Zr cross section at E_n=0~8 MeV.

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Indirect Measurement of ⁹⁵Zr(n, γ)⁹⁶Zr

doi: 10.11804/NuclPhysRev.34.03.420

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通讯作者: 陈斌, bchen63@163.com

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Indirect Measurement of ⁹⁵Zr(n, γ)⁹⁶Zr

doi: 10.11804/NuclPhysRev.34.03.420

1. China Institute of Atomic Energy, Beijing 102413, China;

2. Japan Atomic Energy Agency, Tokai, Naka, Ibaraki 319-1195, Japan

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Indirect Measurement of 95Zr(n, γ)96Zr

doi: 10.11804/NuclPhysRev.34.03.420

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Article Metrics

Proportional views

Indirect Measurement of 95Zr(n, γ)96Zr

doi: 10.11804/NuclPhysRev.34.03.420

1. China Institute of Atomic Energy, Beijing 102413, China; 2. Japan Atomic Energy Agency, Tokai, Naka, Ibaraki 319-1195, Japan

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Indirect Measurement of ⁹⁵Zr(n, γ)⁹⁶Zr

Indirect Measurement of ⁹⁵Zr(n, γ)⁹⁶Zr

1. China Institute of Atomic Energy, Beijing 102413, China;

2. Japan Atomic Energy Agency, Tokai, Naka, Ibaraki 319-1195, Japan