沿Z=0.743N+11.6质子滴线分布的稀土区新核素的合成与研究 |
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引用本文: | 李占奎 徐树威. 沿Z=0.743N+11.6质子滴线分布的稀土区新核素的合成与研究[J]. 原子核物理评论, 1998, 15(2): 82-87. DOI: 10.11804/NuclPhysRev.15.02.082 |
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作者姓名: | 李占奎 徐树威 |
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作者单位: | 中国科学院近代物理研究所 |
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摘 要: | 利用与延发质子符合的子核中已知的第一个2+→0+(基态)的γ跃迁来鉴别其β延发质子先驱核的方法已在实验中得到证实,并在兰州重离子加速器SFC上用氦喷嘴快速带传输系统成功地合成与研究了沿Z=0.743N+11.6质子滴线分布的稀土区新β延发质子先驱核135Gd和121Ce.该鉴别方法在缺中子稀土区新核素合成中将具有很大的应用前景. It′s more and more difficult to synthesis and study new nuclei along the proton drip line by using on line isotope separator because of its low efficiency. A specific method of “p γ” coincidence measurement, using the known low lying “2+→0+(ground state)” γ transition of the “daughter” nucleus in coincidence with its β delayed proton, could increase the detection sensitivity ...
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关 键 词: | p-γ符合 氦喷嘴快速带传输系统 β延发质子先驱核 |
收稿时间: | 1900-01-01 |
Synthesis and Study of New Nuclei along the Proton drip Line Z=0.743N+11.6 in Rare earth Region |
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Affiliation: | (Institute of Modern Physics; the Chinese Academy of Sciences; Lanzhou 730000); |
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Abstract: | It′s more and more difficult to synthesis and study new nuclei along the proton drip line by using on line isotope separator because of its low efficiency. A specific method of “p γ” coincidence measurement, using the known low lying “2+→0+(ground state)” γ transition of the “daughter” nucleus in coincidence with its β delayed proton, could increase the detection sensitivity ... |
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