Chinese Physics C > 2003, Vol. 27 > Issue(7): 603-609

Lifetime of Isomer in High Charge States

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

Abstract
HTML
Reference
Related

PDF

Abstract：
Nuclear lifetime shift of charged atom, due to lack of internal conversion (isomer) or electron capture transition (β decay), is analyzed. Theoretical predict is given, that electron density of inner shell at nuclear surface decreases and energy level also decreases with increasing of charge state, nuclear lifetime increases slightly with previous reason but increases with a jump when energy level drops to a critical value. The shifts of halflife are compared for internal conversion with different nuclear decay energy and different type of transitions. A common used computer code of this calculation created by ourselves, and the calculation results are compared with experiment one.

References

[1]

. Carlson A T et al.Osk Bighe Nat.Lab.Rep.ORNL ,1970,46142. Prati P et al.Z .Phys.,1994,A350:1713. langanke K et al.Ann.DerPhys.,1992,1:332 4. Ghulick G S et al.AIP Conference Proceedings,1991,228:5845. Attallah F et al.Phys.Rev.Lett.,1995,75:1715 6. Pose M E.Relativistic Electron Theory,New York:John Wiley and Sons,Inc.,19617. Bambynek W et al.Rev.Mod.Phys.,1977,49:778. Hager R S,Seltzer E C.Nuclear Data,1968,A4:3799. Dragoun O et al.Nuclear Data Tables,1969,A6:23510. Rose M E.Phys.Rev.,1936,49:727 11. Good R H .Phys.Rev.,1954,94:93112. Durand L.Phys.Rev.,1964,135:B31013. Behrens H,Janecje J.Nucl.Phys.Tech.,1969,4:1 14. Matese J J et al.Phys.Rev.,1966,150:846.15. Garrett W R,Bhalla C P.Z.Physik,1697,453:198 16. Gove N B,Martin M J.Nuclear Data Tables,1971,10:20517. Blatt J M,Weisskopf V F.Theoetical Nuclear Physics,New York:John Weiley and Sons,Inc.,1952 18. Grzywacz R et al.Phys.Lett.,1995,B355:439 19. Walter W B ,Meyer R A .Phys.Rev.,1976,C14:1925

[1]	ZHOU Feng-Qun,ZHAI Zi-Nan,TUO Fei,LUO Jun-Hua,KONG Xiang-Zhong. A Formula Used to Calculate Cross Section of Isomerous State with Characteristic Gamma-Ray of Ground State in a Special Case and Its Application. Chinese Physics C, 2007, 31(7): 625-628.
[2]	J.P.Briand. Applications of Highly Ionized Ion Beams (abstract only). Chinese Physics C, 2007, 31(S1): 236-236.
[3]	TU Ya,CHEN Yong-Shou,GAO Zao-Chun. γ Degree of Freedom for the¹⁷⁸Hf Isomeric State. Chinese Physics C, 2006, 30(S2): 109-111.
[4]	CAO Yun,MA Lei,ZHAO Hong-Wei,ZHANG Zi-Min,SUN Liang-Ting,LI Jing-Yu,FENG Yu-Cheng,LI Xi-Xia. Emittance Measurement of Highly Charged Ion Beams Extracted from ECR Ion Source Using Electric Sweep Scanner. Chinese Physics C, 2004, 28(8): 885-888.
[5]	YANG Zhi-Hu,XIAO Guo-Qing,CHEN Xi-Meng,ZHANG Yan-Ping,ZHAO Yong-Tao,ZHANG Xiao-An,SU Hong,CUI Yin,ZHANG Hong-Qiang,XU Xu,SHAO Jian-Xiong. X-Ray in Highly Charged Ar¹⁷⁺Ion Interacting with Mo Surface. Chinese Physics C, 2004, 28(11): 1231-1233.
[6]	ZHANG Zi-Min,ZHAO Hong-Wei,ZHANG Xue-Zhen,GUO Xiao-Hong,LI Xi-Xia,LI Jin-Yu,FENG Yu-Cheng,WANG Hui,MA Bao-Hua,GAO Ji-Yuan,CAO Yun,SUN Liang-Ting,MA Lei. High Charge State ECR Ion Source-LECR3. Chinese Physics C, 2003, 27(10): 914-918.
[7]	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 of¹³³Sm and 1.1s Isomer of¹³³Pr. Chinese Physics C, 2002, 26(8): 797-802.
[8]	GAN Zai-Guo,LIU Zhong,ZHANG Yu-Hu,PAN Qiang-Yan. A New Isomer State in¹³⁶Ba. Chinese Physics C, 2002, 26(8): 814-817.
[9]	HUANG Xiao-Long. Systematics of Isomeric Cross Section Ratio for Neutron-Induced Reactions. Chinese Physics C, 2001, 25(3): 229-236.
[10]	FENG XiChen,GUO YingXiang,ZHOU XiaoHong,LEI XiangGuo,HUANG WenXue,HE JianJun,ZHU ShaoFei,LIU Zhong,ZHANG YuHu,LUO YiXiao,WEN ShuXian,YUAN GuanJun,WU XiaoGua. Investigation of the [лh_9/2vi_13/2^－1] 10^－Isomer in²⁰⁶At. Chinese Physics C, 2000, 24(4): 359-363.
[11]	ZHOU XiaoHong. Identification and Study of a High-Spin Isomer in¹⁴³Nd. Chinese Physics C, 2000, 24(5): 408-413.
[12]	Zhao Hongwei,Liu Zhanwen,Zhang Xuezhen,Guo Xiaohong,Gao Jiyuan,Zhang Zimin,Yuan Ping,Zhang Wen,Lei Hailiang,Cao Yun,Feng Yucheng,Li Jinyu,Wang Hui,Ma Baohua,Wang Yifang,Wei Baowen. A 14.5GHz New ECR Ion Source With High Charge State and High Magnetic Field. Chinese Physics C, 1999, 23(7): 717-722.
[13]	Huang Xiaolong,Cai Dunjiu. Isomeric Cross Section Ration for (n,2n)Reaction. Chinese Physics C, 1997, 21(5): 453-457.
[14]	Liu Zhong,Sun Xiangfu,Guo Yingxiang,Lei Xiangguo,Chen Xinfeng,Zhou Xiaohong,Zhang Yuhu,Jin Hanjuan,Luo Yixiao,Wen Shuxian,Yuan Guanjun,Li Guangsheng,Yang Chunxiang,Liu Xiang. Lifetime Measurement of the Negative-Parity Isomers in¹¹⁷Xe. Chinese Physics C, 1997, 21(10): 881-885.
[15]	Liu Jianfeng,Su Zongdi. Study on Photon Transmission Coefficient and Capture Cross Section of Isomeric State. Chinese Physics C, 1996, 20(6): 563-570.
[16]	DIV align,Zhang Yuhu. Study of High Spin Isomer and its Decay Level Scheme of Doubly Odd¹⁴⁴Pm Nucleus. Chinese Physics C, 1996, 20(5): 385-393.
[17]	HUO Yu-Kun,PAN Zheng-Ying. INTERACTIONS OF NUCLEI AND LASER(1) ——LASER INDUCED ISOMERIC TRANSITIONS AND GAMMA LASER. Chinese Physics C, 1989, 13(7): 664-669.
[18]	GUI Shou-Zao,LIU Jing-Yi,XIAO Gen-Lai,TIAN Jia-Qi. A NEW TRANSITION BRANCH OF THE 5.2 SEC ISOMER IN¹⁸³W. Chinese Physics C, 1986, 10(3): 354-357.
[19]	LI Ying-Jun,YANG Wei-Fan. ISOMERIC CROSS-SECTION RATIO FOR THE REACTION⁸⁵Rb(n, 2n)^BY14.7MeV NEUTRONS. Chinese Physics C, 1984, 8(2): 241-243.
[20]	Fission group,Nuclear physics laboratory. THE SHAPE ISOMER^240mPu. Chinese Physics C, 1978, 2(1): 83-86.

Access

Get Citation

WU He-Yu, WANG Jun-Xiang and JIN Gen-Ming. Lifetime of Isomer in High Charge States[J]. Chinese Physics C, 2003, 27(7): 603-609.

WU He-Yu, WANG Jun-Xiang and JIN Gen-Ming. Lifetime of Isomer in High Charge States[J]. Chinese Physics C, 2003, 27(7): 603-609. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2002-10-14
Revised: 1900-01-01

Article Metric

Article Views(4327)
PDF Downloads(480)
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

Lifetime of Isomer in High Charge States

Corresponding author:WU He-Yu,

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

Received Date:2002-10-14

Accepted Date:1900-01-01

Available Online:2003-07-05

Abstract:Nuclear lifetime shift of charged atom, due to lack of internal conversion (isomer) or electron capture transition (β decay), is analyzed. Theoretical predict is given, that electron density of inner shell at nuclear surface decreases and energy level also decreases with increasing of charge state, nuclear lifetime increases slightly with previous reason but increases with a jump when energy level drops to a critical value. The shifts of halflife are compared for internal conversion with different nuclear decay energy and different type of transitions. A common used computer code of this calculation created by ourselves, and the calculation results are compared with experiment one.

HTML

Reference (1)

Lifetime of Isomer in High Charge States

Abstract：

References

Access

Article Metrics

Metrics

通讯作者:陈斌, bchen63@163.com

Email This Article