Measurement of the 18O(α, γ)22Ne resonances at JUNA

22Ne(α,n)25Mg is one of the main neutron sources of the s process. 22Ne is produced by the 14N(α, γ)18F(β+)18O(α, γ)22Ne reaction chain in the helium burning, thus, the production rate of 22Ne is dominated by 14N(α,γ)18F and 18O(α,γ)22Ne. At the astrophysical relevant temperatures, the 18O(α,γ)22Ne...

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Published inEPJ Web of Conferences Vol. 260; p. 11015
Main Authors Wang, Luohuan, Su, Jun, Shen, Yangping, He, Jianjun, Zhang, Liyong, Li, Xinyue, Lian, Gang, Guo, Bing, Sheng, Yaode, Chen, Yinji, Zhang, Hao, Li, Ziming, Song, Luyang, Jiang, Xinzhi, Wei, Nan, Weike Nan, Zhang, Long, Cao, Fuqiang, Liu, Weiping
Format Conference Proceeding Journal Article
LanguageEnglish
Published Les Ulis EDP Sciences 01.01.2022
Subjects
Astrophysics
Burning rate
Neutron sources
Neutrons
Nuclear astrophysics
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Summary:22Ne(α,n)25Mg is one of the main neutron sources of the s process. 22Ne is produced by the 14N(α, γ)18F(β+)18O(α, γ)22Ne reaction chain in the helium burning, thus, the production rate of 22Ne is dominated by 14N(α,γ)18F and 18O(α,γ)22Ne. At the astrophysical relevant temperatures, the 18O(α,γ)22Ne reaction rates are determined by several low-energy resonances. In this work, the 18O(α,γ)22Ne reaction was measured at the 400 kV accelerator of Jinping Underground Nuclear Astrophysics experiment (JUNA). The γ-ray yields of the resonances between 470 to 770 keV were obtained.
ISSN:2101-6275
2100-014X
DOI:10.1051/epjconf/202226011015