Synthesis and Identification of the New Transuranium Neutron-deficient Isotope <SUP>235</SUP>Am

Guo Junsheng; Gan Zaiguo; Liu Hongye; Shi Lijun; Yang Weifan; Mou Wantong; Guo Tianrui; Fang Keming; Shen Shuifa; Yuan Shuanggui; Zhong Jiquan; Zhang Xueqian; Qin Zhi; Ma Ruichang; Wang Shuhong; Kong Dengming; Qiao Jimin

Chinese Physics C> 1996, Vol. 20> Issue(3) : 286-288

Synthesis and Identification of the New Transuranium Neutron-deficient Isotope ²³⁵Am

Institute of Modem Physics, The Chiners Academy of Sciences, Lanzhou,7300002 Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100039

Abstract
HTML
Reference
Related

PDF

Abstract：
A new neutron-deficient isotope ²³⁵Am was synthesized in the reaction of ²³⁸Pu (p, 4n) ²³⁵Am by using 35MeV proton bombarding ²³⁵Pu target. The Products were transported by the He-jet system. The Am was seperated from the reaction products using radiochemistry method. The y-ray of ²³pu and X-ray of Np following EC decay of ²³⁵Am were observed. Based on the growth-decay cruve of X-ray of Np and the X-y coincidence measurements, the synthesis of ²³⁵Am was confirmed for the first time. The measured halflife of 35Am is 15±5min.

References

[1]	G.T.Seaborg,LBL-15685,（1983）[2]M.S.Antony et al,Chart of the Nuclides,France（1992）[3]T.Horiguchi et al,Chart of the Nuclides,Japan（1992）.

[1]	, , , , . Cross-section measurements for (n, 2n) reactions on stannum isotopes in the neutron energy range of 13.5 to 14.6 MeV. Chinese Physics C, 2008, 32(1): 28-30. doi: 10.1088/1674-1137/32/1/006
[2]	FENG Zhao-Qing , JIN Gen-Ming , FU Fen , LI Jun-Qing . Isotopic Dependence of Production Cross Sections of Superheavy Nuclei in Hot Fusion Reactions. Chinese Physics C, 2007, 31(4): 366-370.
[3]	PU Zhong-Sheng , GUAN Qiu-Yun , MA Jun , YAN Dong . Cross Section Measurements for (n,2n), (n,p) and (n,α) Reactions on Germanium Isotopes at the Neutron Energy around 14MeV. Chinese Physics C, 2006, 30(12): 1171-1174.
[4]	HE Guo-Zhu , LUO Jun-Hua , LIU Zhong-Jie , KONG Xiang-Zhong . Cross Section Measurements for (n,2n),(n,p)and (n,α) Reactions on Strontium Isotopes at the Neutron Energy About 14MeV. Chinese Physics C, 2005, 29(11): 1057-1060.
[5]	LUO Jun-Hua , ZHOU Feng-Qun , KONG Xiang-Zhong . Cross-Section Measurements for Reactions on Platinum Isotopes in the Neutron Energy Range of 13.5 to 14.6MeV. Chinese Physics C, 2005, 29(6): 561-564.
[6]	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.
[7]	CHEN Yue-E , LU Xiao-Hua , PAN Feng . Mean-Field Plus Nearest-Orbit Proton-Proton and Neutron-Neutron Pairing Interaction Model and the Unified Description of Actinide Nuclei. Chinese Physics C, 2004, 28(8): 814-820.
[8]	PU Zhong-Sheng , YANG Jing-Kang , KONG Xiang-Zhong . Cross Section Measurements for (n,2n),(n,p) and (n,n′α)Reactions on Gallium Isotopes at the Neutron Energies of 13.5, 14.1 and 14.6 MeV. Chinese Physics C, 2003, 27(7): 581-584.
[9]	FAN Hong-Mei , GAN Zai-Guo , QIN Zhi , LEI Xiang-Guo , XU Yan-Bing , HE Jian-Jun , LIU Hong-Ye , WU Xiao-Lei , GUO Jun-Sheng , ZHOU Xiao-Hong , YUAN Shuang-Gui , JIN Gen-Ming . A New Isotope of Z=105 with Mass Number 259. Chinese Physics C, 2001, 25(6): 602-606.
[10]	Xu Yanbing , Yuan Shuanggui , Yang Weifan , He Jianjun , Li Zongwei , Ma Taotao , Xiong Bing , Qin Zhi , Mou Wantong , Gan Zaiguo , Shi Lijun , Guo Tianrui , Chen Zhantu , Guo Junsheng . A New Heavy Neutron-rich Isotope ²³⁸Th. Chinese Physics C, 1999, 23(1): 93-95.
[11]	He Jianjun , Yuan Shuanggui , Yang Weifan , Li Zongwei , Ma Taotao , Fang Keging , Shen Shuifa , Gan Zaiguo , Pan Qiangyan , Chen Zhantu , Guo Tianrui , Mou Wantong , Su Denggui , Xu Yanbing , Guo Junsheng , Liu Hongye , Shi Li Lijun , Zhao Zhizheng , Ma Huifang . A New Isotope of Hafnium: ¹⁸⁶Hf. Chinese Physics C, 1998, 22(12): 1057-1060.
[12]	Zhang Xueqian , Yuan Shuanggui , Yang Weifan , Li Zongwei , Mou Wantong , Yu Xian , Luo Yixiao , Guo Tianrui . Internal Conversion Effect Applications in Identifying New Neutron-Rich Nuclides in the Rare-Earth Region. Chinese Physics C, 1997, 21(3): 201-204.
[13]	Yang Weifan , Yuan Shuanggui , Li Zongwei , He Jianjun , Ma Taotao , Fang Keming , Shen Shuifa , Gan Zaiguo , Pan Qiangyan , Mou Wantong , Su Denggui , Chen Zhantu , Guo Tianrui , Guo Junsheng , Liu Hongye , Shi Lijun , Zhao Zhizheng , Ma Huifang . A New Neu tron-rich Isotope:¹⁸⁶Hf. Chinese Physics C, 1997, 21(10): 958-959.
[14]	Guo Junsheng , Gan Zaiguo , Liu Hongye , Shi Lijun , Yang Wefan , Mou Wantong , Guo Tianrui , Fang Kerning , Shen Shuifa , Yuan Shuanggui , Zhong Jiquan , Zhang Xueqian , Qin Zhi , Ma Ruichang , Wang Shuhong , Kong Dengming , Qiao Jimin . Synthesis and Identification of the New Neutron-Deficient Isotope ²³⁵Am in the Transuranium Region. Chinese Physics C, 1996, 20(S1): 31-32.
[15]	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.
[16]	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 , Zhang Xiang . A New Heavy Neutron-Rich Isotope ²³⁹Pa. Chinese Physics C, 1995, 19(5): 479-480.
[17]	Yang Weifan , Yuan Shuanggui , Zhang Xueqian , Yu Xian , Mou Wantong , Li Zongwei , Gan Zaiguo , Liu Hongye , Guo Junsheng , Zhong Jiquan , Sun Xiangfu . The Synthesis and γ Decay of New Heavy Neutron-Rich Nuclide ¹⁷⁵Er. Chinese Physics C, 1995, 19(10): 959-960.
[18]	YUAN Shuang-Gui , ZHANG Tian-Mei , XU Shu-Wei , LI Zong-Wei , PAN Qiang-Yan , ZHAO Zhi-Zheng , YANG Wei-Fan , ZHANG Xue-Qian , LI Wei-Sheng , YIN Xi-Jin , DU Yi-Fei , WANG Yi-Hao . The Synthesis and Identification of New Neutron-Rich Heavy Nuclide ²³⁷Th. Chinese Physics C, 1993, 17(10): 959-960.
[19]	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 Isotope ¹⁸⁹W Decay. Chinese Physics C, 1993, 17(11): 1055-1056.
[20]	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 Isotope ²⁰⁸Hg. Chinese Physics C, 1992, 16(8): 767-768.

Access

Get Citation

Guo Junsheng, Gan Zaiguo, Liu Hongye, Shi Lijun, Yang Weifan, Mou Wantong, Guo Tianrui, Fang Keming, Shen Shuifa, Yuan Shuanggui, Zhong Jiquan, Zhang Xueqian, Qin Zhi, Ma Ruichang, Wang Shuhong, Kong Dengming and Qiao Jimin. Synthesis and Identification of the New Transuranium Neutron-deficient Isotope ²³⁵Am[J]. Chinese Physics C, 1996, 20(3): 286-288.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(3082)
PDF Downloads(559)
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

Synthesis and Identification of the New Transuranium Neutron-deficient Isotope ²³⁵Am

Corresponding author: Guo Junsheng,

Institute of Modem Physics, The Chiners Academy of Sciences, Lanzhou,7300002 Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100039

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1996-03-05

Abstract: A new neutron-deficient isotope ²³⁵Am was synthesized in the reaction of ²³⁸Pu (p, 4n) ²³⁵Am by using 35MeV proton bombarding ²³⁵Pu target. The Products were transported by the He-jet system. The Am was seperated from the reaction products using radiochemistry method. The y-ray of ²³pu and X-ray of Np following EC decay of ²³⁵Am were observed. Based on the growth-decay cruve of X-ray of Np and the X-y coincidence measurements, the synthesis of ²³⁵Am was confirmed for the first time. The measured halflife of 35Am is 15±5min.

HTML

Reference (1)

Synthesis and Identification of the New Transuranium Neutron-deficient Isotope ²³⁵Am

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Synthesis and Identification of the New Transuranium Neutron-deficient Isotope ²³⁵Am

Corresponding author: Guo Junsheng,

HTML

目录

Synthesis and Identification of the New Transuranium Neutron-deficient Isotope 235Am

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Synthesis and Identification of the New Transuranium Neutron-deficient Isotope 235Am

Corresponding author: Guo Junsheng,

HTML

目录

Synthesis and Identification of the New Transuranium Neutron-deficient Isotope ²³⁵Am

Synthesis and Identification of the New Transuranium Neutron-deficient Isotope ²³⁵Am