Decay Scheme of <SUP>229</SUP>Ra

Shen Shuifa; Yuan Shuanggui; Yang Weifan; Fang Keming; Mou Wantong; Zhang Zueqian; Li Zongwei; Zhong Jiquan; Guo Tianrui; Chen Zhantu

Chinese Physics C> 1997, Vol. 21> Issue(9) : 783-786

Decay Scheme of ²²⁹Ra

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000

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Abstract：
The ²²⁹Ra has been produced in the ²³²Th(n,a)²²⁹Ra reaction by 14MeV neutron irradiation of natural Thorium. The ²²⁹Ra activities were separated from irradiated target material by radiochemical separation technique. 18 new γ rays with energies 14.5,15.6,18.8,21.8,22.5,44.0,47.5,55.0,63.0,69.6,93.6,94.1,98.5,102.2,104.5,106.1,161.171.5keV attributed to the ²²⁹Ac were observed for the first time by usin γ(X) spectroscopic methods. A partial decay scheme of ²²⁹Ra was proposed.

References

[1]	H. L. Ravn et al., J. Inorg.Nucl.Chem.,37(1975)383.[2]L. Westgaard et al.,Z. Phys.,A275(1975)127.[3]R. C. Thompson et al.,Phys.Rev.,C15(1977)2019.[4]G. A. Leander et al.,Phys.Rev.,C37(1988)2744.

[1]	YANG Wei-Fan , DING Hua-Jie , YUAN Shuang-Gui , XU Yan-Bing , ZHANG Sheng-Dong , LU Xi-Ting . Production cross-section of ²³⁰Ra in the reaction of 60 MeV/u ¹⁸O ions with ²³⁸U. Chinese Physics C, 2008, 32(S2): 56-58.
[2]	HE Xiao-Tao , REN Zhong-Zhou . Temporal variation of fundamental constants in ²²⁹Th transition. Chinese Physics C, 2008, 32(S2): 162-165.
[3]	ZHANG Yu-Hu , LIU Min-Liang , de Angelis , GUO Wen-Tao . Level Scheme of ⁹⁴ Mo at High Angular Momentum. Chinese Physics C, 2004, 28(9): 941-946.
[4]	CHEN Yong-Jing , CHEN Yong-Shou , ZHU Sheng-Jiang , GAO Zao-Cun . Reflection-Asymmetric Shell Model Description of the Nuclei ^221,223Ra. Chinese Physics C, 2004, 28(S1): 40-42.
[5]	LIU Min-Liang , ZHANG Yu-Hu , ZHOU Xiao-Hong , HE Jian-Jun , GUO Ying-Xiang , LEI Xiang-Guo , HUANG Wen-Xue , LIU Zhong , LUO Yi-Xiao , FENG Xi-Chen , ZHANG Shuang-Quan , XU Xiao , , , , . High-Spin Level Scheme of Odd-odd ¹⁴²Pm. Chinese Physics C, 2002, 26(4): 354-358.
[6]	ZHANG Yu-Hu , MA Ying-Jun . A New Level Scheme of ¹²⁷I. Chinese Physics C, 2002, 26(2): 104-107.
[7]	ZHENG Yong , ZHOU Xiao-Hong , ZHANG Yu-Hu , LIU Zhong , PAN Qiang-Yan , GAN Zai-Guo , , , , , , , , , . Level Scheme of High-Spin States in ¹⁴⁵Tb. Chinese Physics C, 2002, 26(4): 359-363.
[8]	GAO Zao-Chun , CHEN Yong-Shou . Reflection Asymmetric Shell Model and Its Description of the Octupole Deformed Bands in Ra Isotopes. Chinese Physics C, 2000, 24(S1): 54-58.
[9]	ZHANG Li , HU QingYuan , ZHAO JinHua , ZHENG JiWen , LI ZhanKui , LI ShiHong , GAN ZaiGuo , YU Yong , FAN HongMei , GUO Bin , ZHANG TianMei , WANG ChunFang , WANG TongQing , JIN GenMing , PU YueHu , , , , . γ Scheme Following ²⁰⁸Hg β^－ Decay. Chinese Physics C, 2000, 24(9): 823-828.
[10]	Xiao Zhenjun , Zhang Jinyu , Lu Linxia , Lu Gongru . Rare B-Decays and Z⁰-Penguin Contributions From the Charged Pseudo-Goldstone Bosons. Chinese Physics C, 1999, 23(7): 636-643.
[11]	DIV align , Zhang Yuhu . Study of High Spin Isomer and its Decay Level Scheme of Doubly Odd ¹⁴⁴Pm Nucleus. Chinese Physics C, 1996, 20(5): 385-393.
[12]	Zhang Xueqian , Yuan Shuanggui , Yang Weifan , Mou Wantong , Yu Xian , Li Zongwei , Guo Tianrui , Du Yifei , Luo Yixiao . The Decay Scheme of ¹⁷⁵Er. Chinese Physics C, 1996, 20(8): 673-677.
[13]	Wen Wanxin , Dai Guangxi , Wu Heyu , He Zhiyong , Luo Qingzheng , Duan Limin , Cai Wei , Jin Genming , Li Zuyu , Zhang Baoguo , Qi Yujin . Tracks of Binary Decay. Chinese Physics C, 1995, 19(7): 598-602.
[14]	Xu Shuwei , Xie Yuanxiang , Pan Qiangyan , Zhang Juping , Zhang Xueqian , Wang Yihao , Ge Yuanxiu , Yin Xijin , Wang Chunfang , Zhang Tianmei , Liu Zhong , Guo Bing , Luo Yixiao , Xing Zheng , Chen Xingqu . First Study of EC/β⁺ Decay Schemes for Neutron-Deficient Isotopes ¹⁵³Er and ¹⁵⁷Yb. Chinese Physics C, 1995, 19(3): 193-202.
[15]	LIU Liang-Gang . ONE LOOP RENORMALIZATION OF NUCLEON ENERGY DENSITY IN NUCLEAR MATTER BY CHIRAL σ MODEL. Chinese Physics C, 1990, 14(9): 822-828.
[16]	DING Hui-Liang , WANG Pei-Liang , ZHU Qi-Ming , GUO Ya-Nan , ZHOU Hua-Shi , YANG Xi-Rong , YU Zhong-Qiang , NI Hui-Ling , GU Song-Hua , SHENG Jun-Peng , GUO Hong-Fei . SOME STUDIES OF A MODEL OF PICTORIAL DRIFT CHAMBER. Chinese Physics C, 1986, 10(2): 129-145.
[17]	YU Hong-Xuan , Rudolf Neumann , . A REAL-TIME PICTURE MEMORY. Chinese Physics C, 1985, 9(1): 12-18.
[18]	ZHU Qi-Ming , ZHOU Hua-Shi , NI Hui-Ling , GUO Hong-Fei . SIMULATION MEASUREMENT AND CALCULATION OF THE ELECTRIC FIELD IN THE PICTORIAL DRIFT CHAMBER. Chinese Physics C, 1984, 8(2): 129-135.
[19]	ZHOU BANG-RONG . THE HEAVY QUARK PQTENTIAL TO TWO-LOOP ORDER. Chinese Physics C, 1982, 6(4): 421-427.
[20]	HE JU , ZHANG ZHAO-XI , HE ZUO-XIU . ON THE “DIRECT CHANNEL DIAGRAM” OF THE PRODUCTION OF THE （π⁺π^-）_s S-STATE ATOMS. Chinese Physics C, 1979, 3(3): 297-303.

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Shen Shuifa, Yuan Shuanggui, Yang Weifan, Fang Keming, Mou Wantong, Zhang Zueqian, Li Zongwei, Zhong Jiquan, Guo Tianrui and Chen Zhantu. Decay Scheme of ²²⁹Ra[J]. Chinese Physics C, 1997, 21(9): 783-786.

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Decay Scheme of ²²⁹Ra

Corresponding author: Shen Shuifa,

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1997-09-05

Abstract: The ²²⁹Ra has been produced in the ²³²Th(n,a)²²⁹Ra reaction by 14MeV neutron irradiation of natural Thorium. The ²²⁹Ra activities were separated from irradiated target material by radiochemical separation technique. 18 new γ rays with energies 14.5,15.6,18.8,21.8,22.5,44.0,47.5,55.0,63.0,69.6,93.6,94.1,98.5,102.2,104.5,106.1,161.171.5keV attributed to the ²²⁹Ac were observed for the first time by usin γ(X) spectroscopic methods. A partial decay scheme of ²²⁹Ra was proposed.