Experimental Study of Key <SUP>18</SUP>Ne(α, p)<SUP>21</SUP>Na Astrophysical Reaction

ZHANG Liyong; XU Shiwei; HE Jianjun; H.Yamaguchi; S.Kubono; Y.Wakabayashi; CHEN Size; HU Jun; MA Peng; Y.Togano; T.Hashimoto; D.Kahl; T.Teranishi; CHEN Ruofu; WANG Hongwei; TIAN Wendong; GUO Bing; S.Hayakawa; N.Iwasa0; T.Yamada0; T.Komatsubara

doi:10.11804/NuclPhysRev.30.04.385

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Volume 30 Issue 4

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Article Navigation > Nuclear Physics Review > 2013 > 30(4): 385-390

ZHANG Liyong, XU Shiwei, HE Jianjun, H.Yamaguchi, S.Kubono, Y.Wakabayashi, CHEN Size, HU Jun, MA Peng, Y.Togano, T.Hashimoto, D.Kahl, T.Teranishi, CHEN Ruofu, WANG Hongwei, TIAN Wendong, GUO Bing, S.Hayakawa, N.Iwasa0, T.Yamada0, T.Komatsubara. Experimental Study of Key 18Ne(α, p)21Na Astrophysical Reaction[J]. Nuclear Physics Review, 2013, 30(4): 385-390. doi: 10.11804/NuclPhysRev.30.04.385

Citation:

ZHANG Liyong, XU Shiwei, HE Jianjun, H.Yamaguchi, S.Kubono, Y.Wakabayashi, CHEN Size, HU Jun, MA Peng, Y.Togano, T.Hashimoto, D.Kahl, T.Teranishi, CHEN Ruofu, WANG Hongwei, TIAN Wendong, GUO Bing, S.Hayakawa, N.Iwasa0, T.Yamada0, T.Komatsubara. Experimental Study of Key ¹⁸Ne(α, p)²¹Na Astrophysical Reaction[J]. Nuclear Physics Review, 2013, 30(4): 385-390. doi: 10.11804/NuclPhysRev.30.04.385

Experimental Study of Key ¹⁸Ne(α, p)²¹Na Astrophysical Reaction

doi: 10.11804/NuclPhysRev.30.04.385

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;
School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China;
University of Chinese Academy of Sciences, Beijing 100049, China;
Center for Nuclear Study (CNS), University of Tokyo, Hirosawa 3510198 Japan;
Advanced Science Research Center, JAEA, Takai Ibaraki 3191195 Japan;
RIKEN,2-1 Hirosawa, Wako, Saitama, 3510198 Japan;
Department of Physics, University of Kyushu, Fukuoka 8128581 Japan;
Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;
China Institute of Atomic Energy, Beijing 102413, China;
Department of Physics, University of Tohoku, Sendai 9808577 Japan;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2013-12-20

Abstract

The ¹⁸Ne(α ,p)²¹Na reaction is thought to be one of the key breakout reaction from the hot CNO cycle to the rp-process in X-ray bursts. Over stellartemperatures achieved in XRBs, this rate has not been sufficiently determined.The experiment was performed using CRIB (CNS Radioactive Ion Beam separator) at the Center for Nuclear Study (CNS) of the University of Tokyo. An 89 MeV ²¹Na radioactive ion beam was produced and bombarded an 8.8 mg/cm2 thick polyethylene target. The recoiled light particles were detected with three Micron silicon ΔE-E telescopes centered at angles of θlab = 0°; +14° and 14°with respect to the beam direction, respectively. The 21Na+p elastic-scattering excitation functions were reconstructed with a thick-target method over energies Ex = 5:5 9:2 MeV. The resonance parameters have been determined through an R-matrix analysis，which will be used to evaluate the ¹⁸Ne( α, p)²¹Na reaction rate.
- nuclear astrophysics,
- X-ray burst,
- radioactive beam,
- thick target method,
- resonant scattering
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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

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Experimental Study of Key ¹⁸Ne(α, p)²¹Na Astrophysical Reaction

doi: 10.11804/NuclPhysRev.30.04.385

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

School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China;

University of Chinese Academy of Sciences, Beijing 100049, China;

Center for Nuclear Study (CNS), University of Tokyo, Hirosawa 3510198 Japan;

Advanced Science Research Center, JAEA, Takai Ibaraki 3191195 Japan;

RIKEN,2-1 Hirosawa, Wako, Saitama, 3510198 Japan;

Department of Physics, University of Kyushu, Fukuoka 8128581 Japan;

Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;

China Institute of Atomic Energy, Beijing 102413, China;

Department of Physics, University of Tohoku, Sendai 9808577 Japan;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2013-12-20

Key words:

Abstract: The ¹⁸Ne(α ,p)²¹Na reaction is thought to be one of the key breakout reaction from the hot CNO cycle to the rp-process in X-ray bursts. Over stellartemperatures achieved in XRBs, this rate has not been sufficiently determined.The experiment was performed using CRIB (CNS Radioactive Ion Beam separator) at the Center for Nuclear Study (CNS) of the University of Tokyo. An 89 MeV ²¹Na radioactive ion beam was produced and bombarded an 8.8 mg/cm2 thick polyethylene target. The recoiled light particles were detected with three Micron silicon ΔE-E telescopes centered at angles of θlab = 0°; +14° and 14°with respect to the beam direction, respectively. The 21Na+p elastic-scattering excitation functions were reconstructed with a thick-target method over energies Ex = 5:5 9:2 MeV. The resonance parameters have been determined through an R-matrix analysis，which will be used to evaluate the ¹⁸Ne( α, p)²¹Na reaction rate.

Citation:

ZHANG Liyong, XU Shiwei, HE Jianjun, H.Yamaguchi, S.Kubono, Y.Wakabayashi, CHEN Size, HU Jun, MA Peng, Y.Togano, T.Hashimoto, D.Kahl, T.Teranishi, CHEN Ruofu, WANG Hongwei, TIAN Wendong, GUO Bing, S.Hayakawa, N.Iwasa0, T.Yamada0, T.Komatsubara. Experimental Study of Key ¹⁸Ne(α, p)²¹Na Astrophysical Reaction[J]. Nuclear Physics Review, 2013, 30(4): 385-390. doi: 10.11804/NuclPhysRev.30.04.385