(EC/β<SUP>+</SUP>) Decay of Neutron Deficient Nuclide <SUP>129</SUP>Ce

XIE Yuan-Xiang; XU Shu-Wei; LI Zhan-Kui; ZHANG Tian-Mei; MA Rui-Chang; GUO Ying-Xiang; GE Yuan-Xiu; WANG Chun-Fang; XING Jian-Ping

Chinese Physics C> 2001, Vol. 25> Issue(3) : 198-204

(EC/β⁺) Decay of Neutron Deficient Nuclide ¹²⁹Ce

Institute of Modern Physics, The Chinese Academy of Science, Lanzhou 730000, China

Abstract
HTML
Reference
Related

PDF

Abstract：
The nuclide ¹²⁹Ce was produced by a (¹⁶O,4n) reaction with an enriched ¹¹⁷Sn target. With the aid of a helium-jet tape transport system, the reaction products were transported to a shielded location,where Ce samples were prepared after chemical separation. The neighboring isotopes of ¹¹⁷Sn,¹¹⁶Sn and ¹¹⁸Sn,were also bombarded with ¹⁶O beam. Different isotopes of Ce were further separated by comparing the products in the above three reactions. An activity with a half life of 4.1 min in the chemically purified cerium samples was identified as ¹²⁹Ce. Based on X-γ-t and γ-γ-t coincidence measurements, the EC/β⁺ decay scheme of ¹²⁹Ce, including 51 γ lines,was proposed. Using the observed growth decay curve of an intense 278.6keV γ line of ¹²⁹La decay, the β feeding branch from the ground state of ¹²⁹Ce directly to the ground state of ¹²⁹ La was estimated to be (26±7)%. In addition, the γ spectra gated by both La-K_α-X ray and intense 68.2keV γ ray of ¹²⁹Ce decay as well as the time spectra of typical γ rays were also presented here.

References

[1]

HEY,GodfreyMJ,JenkinsIetal.J.Phys.,1992,G18:992 H a s h i i e A,Tendow Y,Ohshii M. Nucl. Date Sheets, 1983,39:6333 Alkhazov G D, Batist L H,Bykov A A et al. Z. Phys.,1993 ,A344:4254 Alexander K F,N eubert W ,Rotter H et al. Nucl. Phys.,1969,A 133 :7 75 Aryueinejad R,Love D J,Nelson A H et al. J. Phys.,1984,G10:9556 LeighJR,NakaiK,MaierKHetal.Nucl.Phys.,1973,A213:17 XIE Yuan-Xiang XU Shu-Wei, MA Rui-Chang et al. Chin. Phys. Lett.,1997,14:3448 Brodeur P,Pathak B P,Mark S K et al. Z. Phys. ,1978,A289:2899 Gove N B, Martin M J. Nucl. Date Tables, 1971,10:206

[1]	FU Zai-Wei , HENG Yue-Kun , QI Ming , HUANG Pin-Wen , ZHANG Huai-Jin , WANG Ji-Yang , JIA Ru , QIAN Sen , LI Shao-Li , CHEN Xiao-Hui , NING Zhe . Scintillating properties of LiYSiO₄:Ce. Chinese Physics C, 2011, 35(12): 1134-1138. doi: 10.1088/1674-1137/35/12/010
[2]	XU Shu-Wei , XIE Yuan-Xiang , LI Zhan-Kui , WANG Xu-Dong , PAN Qiang-Yan , YU Yong . EC/β⁺ decay of six medium-heavy nuclei. Chinese Physics C, 2009, 33(S1): 142-144. doi: 10.1088/1674-1137/33/S1/045
[3]	LIU Ying , WU Xiao-Guang , ZHU Li-Hua , LI Guang-Sheng , HE Chuang-Ye , LI Xue-Qin , PAN Bo , HAO Xin , LI Li-Hua , WANG Zhi-Min , LI Zhong-Yu , XU Qiang . Signature splitting in ¹²⁹Ce. Chinese Physics C, 2009, 33(S1): 212-214. doi: 10.1088/1674-1137/33/S1/068
[4]	LIU Ying , WU Xiao-Guang , ZHU Li-Hua , LI Guang-Sheng , HE Chuang-Ye , LI Xue-Qin , PAN Bo , HAO Xin , LI Li-Hua , WANG Zhi-Min , LI Zhong-Yu , XU Qiang , WANG Jian-Guo , DING Huai-Bo , ZHAI Jian . Triaxial shape in ¹²⁹Ce. Chinese Physics C, 2008, 32(S2): 141-142.
[5]	WANG Hua-Lei , ZHANG Yu-Hu , ZHOU Xiao-Hong , GUO Ying-Xiang , LEI Xiang-Guo , XU Shu-Wei , XIE Yuan-Xiang , XING Ye-Bing , ZHENG Yong , LIU Min-Liang , SONG Li-Tao , XIE Cheng-Ying , , . β⁺/EC Decay and Systematic Analysis of ^176,178Ir. Chinese Physics C, 2006, 30(S2): 177-179.
[6]	WANG Hua-Lei , ZHANG Yu-Hu , ZHOU Xiao-Hong , GUO Ying-Xiang , LEI Xiang-Guo , XIE Yuan-Xiang , XU Shu-Wei , XING Ye-Bing , ZHENG Yong , LIU Min-Liang , XIE Cheng-Ying , SONG Li-Tao , , , , . β⁺/EC-Decay Study of ¹⁷⁶Ir Neutron-Deficient Isotope. Chinese Physics C, 2006, 30(3): 201-206.
[7]	MA Hai-Liang , DONG Bao-Guo . Rotational Structures of Neutron Deficient Isotopes ^125,127,129Ce. Chinese Physics C, 2006, 30(S2): 81-83.
[8]	XU Shu-Wei , XIE Yuan-Xiang , XU Fu-Rong , LI Zhan-Kui , WANG Xu-Dong , XING Ye-Bing . Further Identification of the Decay of ¹²⁹Pm Near the Proton Drip Line. Chinese Physics C, 2005, 29(3): 237-239.
[9]	XU Shu-Wei , XIE Yuan-Xiang , LI Zhan-Kui , WANG Xu-Dong . New Nuclide ¹²⁹Pm Near the Proton Drip Line. Chinese Physics C, 2004, 28(2): 158-160.
[10]	WANG Xu-Dong , XIE Yuan-Xiang , XU Shu-Wei , LI Zhan-Kui , GUO Bin , LENG Chang-Geng , WANG Chun-Fang , YU Yong . (EC+β⁺) Decay of ¹³³Sm and 1.1s Isomer of ¹³³Pr. Chinese Physics C, 2002, 26(8): 797-802.
[11]	YU Yong , XIE Yuan-Xiang , XU Shu-Wei , LI Zhan-Kui , PAN Qiang-Yan , WANG Chun-Fang , XING Jian-Ping , ZHANG Tian-Mei . (EC/β⁺) Decay of ¹³⁰Nd and ¹⁴⁰Tb. Chinese Physics C, 2001, 25(2): 108-114.
[12]	LI Guang-Sheng , DAI Zheng-Yu , LIU Xiang-An , ZHANG Lan-Kuan , WEN Shu-Xian , WU Xiao-Guang , YUAN Guan-Jun , PENG Chao-Hua , WENG Pei-Kun , LI Sheng-Gang , YANG Chun-Xiang . Shape Change of ¹²⁹Ce at High Spin States. Chinese Physics C, 2001, 25(10): 984-988.
[13]	ZHU ShengJiang , GAN CuiYun , ZHU LingYan , YANG LiMing , XU RuiQing , JON MyonGil , JIANG Zhuo , ZHANG Zheng , . Collective Band Structures in Neutron-Rich Odd-A ^145,147Ce Nuclei. Chinese Physics C, 2000, 24(11): 1018-1023.
[14]	XIE YuanXiang , XU ShuWei , Li ZhanKui , YU Yong , PAN QiangYan , WANG ChunFang , ZHANG TianMei , LONG GuiLu , LI YanSong . (EC+β⁺) Decay of ¹³⁰Pm and ¹²⁸Pr. Chinese Physics C, 2000, 24(8): 719-724.
[15]	Xie Yuanxiang , Xu Shuwei , Li Zhankui , Ma Ruichang , Yu Yong . Reinvestigation for EC/β⁺ Decay of Neutron-Deficient Nuclide ¹²⁰Ba. Chinese Physics C, 1999, 23(12): 1129-1134.
[16]	Zhu Lingyan , Zhu Shengjiang , Li Ming . Octupole Deformation in Neutron-rich ^144,146Ce Nuclei. Chinese Physics C, 1998, 22(10): 885-890.
[17]	Zhu Shengjiang , Wang Muge , Deng Jingkang . Level Schemes in Neutron-Rich ¹⁴¹Xe、¹⁵²Ce、¹⁵³Nd and ¹⁶⁰Sm Nuclei. Chinese Physics C, 1997, 21(2): 104-109.
[18]	Xie Yuanxiang , Xu Shuwei , Li Zhankui , Ma Ruichang , Ge Yuanxiu , Wang Chunfang , Huang Wenxue , Zhang Tianmei . Synthesis and Study of the New β-delayed Proton Precursor Ce in the Region of Proton-drip Line. Chinese Physics C, 1997, 21(7): 668-671.
[19]	Xie Yuanxiang , Xu Shuwei , Guo Yingxiang , Ma Ruichang , Ge Yuanxiu , Li Zhankui , Wang Chunfang , Guo Bin , Xing Jianping , Zhang Tianmei , Zhu Shaofei , Xu Wang . First Study of Weak (EC+β⁺) Decay Branch for the Neutron-Deficient Isotoep ²⁰⁹Fr. Chinese Physics C, 1997, 21(4): 289-291.
[20]	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.

Access

Get Citation

XIE Yuan-Xiang, XU Shu-Wei, LI Zhan-Kui, ZHANG Tian-Mei, MA Rui-Chang, GUO Ying-Xiang, GE Yuan-Xiu, WANG Chun-Fang and XING Jian-Ping. (EC/β⁺) Decay of Neutron Deficient Nuclide ¹²⁹Ce[J]. Chinese Physics C, 2001, 25(3): 198-204.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2000-02-24
Revised: 1900-01-01

Article Metric

Article Views(3294)
PDF Downloads(595)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

(EC/β⁺) Decay of Neutron Deficient Nuclide ¹²⁹Ce

Corresponding author: XIE Yuan-Xiang,

Institute of Modern Physics, The Chinese Academy of Science, Lanzhou 730000, China

Received Date: 2000-02-24

Accepted Date: 1900-01-01

Available Online: 2001-03-05

Abstract: The nuclide ¹²⁹Ce was produced by a (¹⁶O,4n) reaction with an enriched ¹¹⁷Sn target. With the aid of a helium-jet tape transport system, the reaction products were transported to a shielded location,where Ce samples were prepared after chemical separation. The neighboring isotopes of ¹¹⁷Sn,¹¹⁶Sn and ¹¹⁸Sn,were also bombarded with ¹⁶O beam. Different isotopes of Ce were further separated by comparing the products in the above three reactions. An activity with a half life of 4.1 min in the chemically purified cerium samples was identified as ¹²⁹Ce. Based on X-γ-t and γ-γ-t coincidence measurements, the EC/β⁺ decay scheme of ¹²⁹Ce, including 51 γ lines,was proposed. Using the observed growth decay curve of an intense 278.6keV γ line of ¹²⁹La decay, the β feeding branch from the ground state of ¹²⁹Ce directly to the ground state of ¹²⁹ La was estimated to be (26±7)%. In addition, the γ spectra gated by both La-K_α-X ray and intense 68.2keV γ ray of ¹²⁹Ce decay as well as the time spectra of typical γ rays were also presented here.

HTML

Reference (1)

(EC/β⁺) Decay of Neutron Deficient Nuclide ¹²⁹Ce

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

(EC/β⁺) Decay of Neutron Deficient Nuclide ¹²⁹Ce

Corresponding author: XIE Yuan-Xiang,

HTML

目录

(EC/β+) Decay of Neutron Deficient Nuclide 129Ce

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

(EC/β+) Decay of Neutron Deficient Nuclide 129Ce

Corresponding author: XIE Yuan-Xiang,

HTML

目录

(EC/β⁺) Decay of Neutron Deficient Nuclide ¹²⁹Ce

(EC/β⁺) Decay of Neutron Deficient Nuclide ¹²⁹Ce