Gamma Decay of the Lowly Excited States of 229 AC
YUAN Shuang-gui, YANG Wei-fan, SHEN Shui-fa, FANG Ke-ming, MOU Wan-tong, ZHANG Xue-qian, LI Zong-wei
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
Gamma Decay of the Lowly Excited States of 229 AC
YUAN Shuang-gui;YANG Wei-fan;SHEN Shui-fa;FANG Ke-ming;MOU Wan-tong;ZHANG Xue-qian;LI Zong-wei
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
关键词 ：
23.40.-s ,
27.90.+b
Abstract ： By bombarding the natural thorium targets with 14 MeVneutrons, 229 Ra was produced through the reaction 232 Th(n,α) 229 Ra. The radium activities were separated from the irradiated targets by coprecipitation with BaC12 . A total of 18 weak γ rays with energies of 14.5, 15.6, 18.8, 21.8, 22.5, 44.0, 47.5, 55.0, 63.0, 69.6, 93.6, 94.1, 98.5, 102.2, 104.5, 106.1, 161.1, and 171.5keV, which could be assigned to the decay of 229 Ra, has been observed in the isolated radium fractions employing high-resolution HPGe detectors and γ (x)- γ coincidence methods. A decay scheme of 229 Ra based on these observations has been proposed.
Key words ：
23.40.-s
27.90.+b
出版日期: 1997-04-01
:
23.40.-s
(β-decay;double β-decay; electron and muon capture)
27.90.+b
(A ≥ 220)
引用本文:
YUAN Shuang-gui;YANG Wei-fan;SHEN Shui-fa;FANG Ke-ming;MOU Wan-tong;ZHANG Xue-qian;LI Zong-wei. Gamma Decay of the Lowly Excited States of 229 AC[J]. 中国物理快报, 1997, 14(4): 263-265.
229 AC. Chin. Phys. Lett., 1997, 14(4): 263-265.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1997/V14/I4/263
[1]
LIU Zu-Hua;ZHOU Hong-Yu. Fusion Hindrance Factor of Heavy Nuclei Extracted from Experimental Data
[2]
ZHANG Yu-Mei;XU Fu-Rong;. Shell-Model Calculations of β Decays in 18 N
[3]
ZHANG Hong-Fei;LI JUN-Qing;ZUO Wei;CHEN Bao-Qiu;MA Zhong-Yu;Soojae Im;Royer Guy. Alpha Decay Half-Lives of New Superheavy Elements through Quasimolecular Shapes
[4]
WEI Liang;LIU Yu-Xin;;. Shape Evolution of the Compound Nucleus in the Superheavy Element Synthesis Reaction via the BUU Model
[5]
JIA Fei;XU Hu-Shan;HUANG Tian-Heng;LI Wen-Fei;XU Hua-Gen;CHEN Ruo-Fu;LI Jun-Qing. Potential Energy of the Di-nuclear System
[6]
TAI Fei;CHEN Ding-Han;XU Chang;REN Zhong-Zhou;. Ground State Properties of New Element Z=113 and Its Alpha Decay Chain
[7]
CHEN Bao-Qiu;MA Zhong-Yu;ZHU Zhi-Yuan;SONG Hong-Qiu;ZHAO Yao-Lin. Deformed Potential Energy of Super Heavy Element Z=120 in a Generalized Liquid Drop Model
[8]
YUAN Wei;LIU Yu-Xin;;. Density Dependence of the Beta Decay Width in Astronuclear Matter
[9]
WANG Ting-Tai;JIANG Wei-Zhou;ZHANG Wei;WANG Kun;ZHU Zhi-Yuan. Properties of the Alpha Decay Chain Nuclei of 310 126, 292 120 and 298 114
[10]
WANG Kun;MA Yu-Gang;MA Guo-Liang;WEI Yi-Bin;CAI Xiang-Zhou;CHEN Jin-Gen;GUO Wei;ZHONG Chen;SHEN Wen-Qing;. A Proposed Reaction Channel for the Synthesis of the Superheavy Nucleus Z = 109
[11]
ZHANG Li;K. Morita;HU Qing-Yuan;A. Yoshida;ZHAO Jin-Hua;ZHENG Ji-Wen;LI Zhan-Kui;Y. H. Pu;H. Kudo;Y. Yano. Beta Decay of Neutron-Rich Nucleus 208 Hg
[12]
LIU Zhi-Yi;LI Cheng-Bo;WANG Si-Guang;ZHOU Jing;MENG Qiu-Ying;LU Shao-Jun;ZHOU Shu-Hua. Measurement of Change of 7 Be Decay Rate in Be and Au
[13]
CHEN Bao-Qiu;MA Zhong-Yu;;Zhao Yao-Lin. Deformed Potential Energy of 263 Db in a Generalized Liquid Drop Model
[14]
WU Zhe-Ying;XU Fu-Rong;;ZHAO En-Guang;ZHENG Chun-Kai;. Spherical and Deformed Shell Closures in Superheavy nuclei
[15]
GAO Zao-Chun;CHEN Yong-Shou;. Reflection Asymmetric Shell Model for the Description of
Octupole Rotational Bands
1997, Vol. 14 
