Chinese Physics C > 1995, Vol. 19 > Issue(5): 479-480

A New Heavy Neutron-Rich Isotope²³⁹Pa

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

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Abstract：
A new heavy neutron-rich isotope ²³⁹Pa has been observed for the. first time in the interaction of 50MeV/u ¹⁸O with ^natU targets. Protactinium products were separated radiochemically from the complex mixture of the reaction products. The results observed from the decay of ²³⁹Pa and its daughter ²³⁹U show that a new heavy neutron-rich isotope ²³⁹Pa was produced and identified. The measured half-life is 106±30 min.

References

[1]	K.Rykaczewskietal,Nucl.Phys.A499（1989）529.[2]K.J.Moody et al,GSIPreprint,GSI-87-43（1987）.[3]U.Reus,W.Westmeier,Atomic Data and Nuclear Data Table,29（1983）1.[4]M.R.Schmorak,Nuclear Data Sheets,66（1992）844.

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[2]	YUAN Shuang-Gui,XU Yan-Bing,DING Hua-Jie,YANG Wei-Fan.²³⁹Pa May Influence Astrophysics Study. Chinese Physics C, 2006, 30(S2): 233-234.
[3]	FAN Hong-Mei,WU Xiao-Lei,GUO Jun-Shen,GAN Zai-Guo,QIN Zhi,LEI Xiang-Guo,DONG Cheng-Fu,XU Hua-Gen,CHEN Ruo-Fu,ZHANG Fu-Ming,GUO Bin,LIU Hong-Ye,WANG Hua-Lei,,,. Identification of the New Isotope 265107Bh by α Correlated Decay Chains. Chinese Physics C, 2005, 29(5): 451-455.
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[15]	YANG Weifan,ZHAO Zhizheng,LI Zongwei,MOU Wantong,ZHU Shaofei,XIE Xiujun,YUAN Suanggui,ZHANG Tianmei,PAN Qiangyan,WANG Jicheng,XU Shuwei. New Gamma Rays from the Neutron-Rich Isotope¹⁸⁹W Decay. Chinese Physics C, 1993, 17(11): 1055-1056.
[16]	ZHANG Li,JIN Gen-Ming,ZHAO Jin-Hua,YANG Wei-Fan,YANG Yong-Feng,ZHAO Zhi-Zheng,ZHENG Ji-Wen,SUN Xiu-Rong,LI Zong-Wei,QIN Zhi,WANG Ji-Cheng,GUO Guang-Hui. New Neutron-Rich Isotope²⁰⁸Hg. Chinese Physics C, 1992, 16(8): 767-768.
[17]	XU Hu-Shan,JIANG Cheng-Lie,BAI Xi-Xiang. Preliminary Observation of Proton-rich Isotope⁶⁵As. Chinese Physics C, 1992, 16(7): 647-650.
[18]	FENG Jun,SHEN Wen-Qing,ZENG Yue-Wu,WANG Bing,MA Yu-Gang,ZHAN Wen-Long,ZHU Yong-Tai,FENG En-Pu. The Relation of Isotopic Distribution of Heavy Ion Peripheral Reaction Products to Neutron-Skin and Excitation Energy in Intermediate Energy Range. Chinese Physics C, 1991, 15(4): 322-328.
[19]	ZHANG Jing-Ye,ZHONG Ji-Quan,JIAO Dun-Pang,GE Yuan-Xiu,MA Xi-Liang. ON THE νi_13/2PAIR IN EVEN Pt ISOTOPES. Chinese Physics C, 1987, 11(1): 128-132.
[20]	SHEN WEN-QING. NEUTRON RICH ISOTOPES⁵⁴Ti,⁵⁶V,⁵⁷V,⁵⁸Cr PRODUCED IN BOMBARDMENT OF⁵⁶Fe TARGET WITH 79OMeV¹³⁶Xe IONS. Chinese Physics C, 1982, 6(4): 462-465.

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Yang Weifan, Yuan Shuanggui, Mou Wantong, Zhang Xueqian, Li Zongwei, Yu Xian, Gan Zaiguo, Liu Hongye, Guo Yingxiang, Zhao Jinhua, Lei Xiangguo, Guo Junsheng, Du Yifei, Zhao Lili and Zhang Xiang. A New Heavy Neutron-Rich Isotope ²³⁹Pa[J]. Chinese Physics C, 1995, 19(5): 479-480.

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

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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

A New Heavy Neutron-Rich Isotope²³⁹Pa

Corresponding author:Yang Weifan,

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

Received Date:1900-01-01

Accepted Date:1900-01-01

Available Online:1995-05-05

Abstract:A new heavy neutron-rich isotope²³⁹Pa has been observed for the. first time in the interaction of 50MeV/u¹⁸O with^natU targets. Protactinium products were separated radiochemically from the complex mixture of the reaction products. The results observed from the decay of²³⁹Pa and its daughter²³⁹U show that a new heavy neutron-rich isotope²³⁹Pa was produced and identified. The measured half-life is 106±30 min.

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A New Heavy Neutron-Rich Isotope²³⁹Pa

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