Design Method for ISOL′s Target System

ZHANG Tian-Jue

Chinese Physics C> 2002, Vol. 26> Issue(3) : 290-298

Design Method for ISOL′s Target System

ZHANG Tian-Jue ^,

China Institute of Atomic Energy,Beijing 102413,China2 Oak Ridge National Lab.,P.O.Box 2008,Oak Ridge,TN 37831,USA

Abstract
HTML
Reference
Related

PDF

Abstract：
The target system design is one of the key problems in the ISOL facility for RIB generation. In this paper,the diffusion and adsorption processes in the target materials are simulated so as to investigate the release time of radioactive species from the uniform or Gaussian distribution,cylindrical,spherical or planar target materials operated at different temperatures based on the idea of using ion implantation at HRIBF for the selection of RIB targets. The effusion process from the surface of the target material to the ionization chamber of the online ion source is also investigated in this paper. The Monte-Carlo techniques are used for the numerical simulation based on the measurement data of surface physics from ZFK,Germany. The empirical formulas and the tables of characteristic effusive-flow times for various particles through tubes of different dimension and material are extracted from the simulation. One can design the dimension of the effusion tube and determine the material for the tube by using the formulas and the tables.

References

[1]

Alton G D et al. Nucl. Instr. and Meth. In Phys. Res. 1996. A382: 225-2312 Kirkaldy J S, Yong D J. Diffusion in Condensed State, London: The Institute of Metals, 1987. 11-253 Crank J. The Mathematics of Disusion, Oxford: Oxford University Press, 1975. 69-1034 Press W H. et al. Numberical Recipes in C, the Art of Scientific Computing. Cambridge: Cambridge University Press, 1992. 827-8535 Zangwill A. Physics at Surfaces, Cambridge: Cambridge University Press, 1990. 200

[1]	ZHENG Shi-Jie , XU Fu-Rong . Shape Coexistence in Light Krypton Isotopes. Chinese Physics C, 2006, 30(S2): 121-123.
[2]	WANG Pei-Wei , CHEN Hong , LI Jia-Xing , LIU Lang , MENG Jie . Properties of C Isotopes in RMF+SLAP Approach. Chinese Physics C, 2006, 30(S2): 94-96.
[3]	YE Wei . Isotopic Effects in Prescission Particle Emission. Chinese Physics C, 2003, 27(3): 233-237.
[4]	XU Yan-Bing , YANG Wei-Fan , YUAN Shuang-Gui , XIAO Yong-Hou , PAN Qiang-Yan , LI Ying-Jun . Measurement of the Cross Sections for Ba Isotopes. Chinese Physics C, 2002, 26(6): 589-593.
[5]	FAN Hong-Mei , WANG Tong-Qing , GUO Bin , GUO Ying-Xiang , ZHANG Li , ZHAO Jin-Hua . The Experimental Study for Increasing Efficiency of On-Line Isotope Separator. Chinese Physics C, 2002, 26(1): 69-73.
[6]	Soojae Im , MENG Jie , ZHOU Shan-Gui , YANG Si-Chun , LONG Wen-Hui . Skyrme-Hartree-Fock Description of the Nuclear Structure in Ca Isotopes (Ⅱ)Neutron Halo, Skin and Particles in the Classically Forbidden Area. Chinese Physics C, 2001, 25(5): 405-411.
[7]	Soojae Im , MENG Jie , ZHOU Shan-Gui , YANG Si-Chun , LONG Wen-Hui . Skyrme-Hartree-Fock Description of the Nuclear Structure in Ca Isotopes (Ⅰ)Binding Energy and Shell Effects,Radii and Density Distributions. Chinese Physics C, 2001, 25(4): 322-328.
[8]	ZHAO Zhi-Zheng , YANG Yong-Feng , WANG Tong-Qing , GUO Ying-Xiang , GUO Bin , FAN Hong-Mei , ZU Kai-Ling , WANG Xu-Dong , ZHENG Zhao-Miao , LIU Jun-Hui , LEI Xiang-Guo . Research of the Capillary Target-Ion Source System in On-Line Experiment. Chinese Physics C, 2001, 25(11): 1106-1112.
[9]	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.
[10]	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.
[11]	Zhang Li , Zheng Jiwen , Zhao Jinhua , Qin Zhi , Yang Yongfeng , Hu Qingyuan , Zhang Chun , Wang Jicheng , Guo Tianrui , Jin Genming . Independent Yield Measurement for the Hg-Isotope Products From 600MeV ¹⁸O+^natPb (Thick Target) System (Ⅱ) Experiment Results and Analysis. Chinese Physics C, 1998, 22(12): 1068-1073.
[12]	Zhang Li , Zhao Jinhua , Zheng Jiwen , Qin Zhi , Yang Yongfeng , Zhang Chu , Wang Jicheng , Guo Tianrui , Jin Genming , Hu Qingyuan . Independent Yield Measurement for the Hg-Isotope Products From 600 MeV ¹⁸O+^natPb(thick target) System (Ⅰ) Experiment and Technique. Chinese Physics C, 1998, 22(11): 969-976.
[13]	Zhao Zhizheng , Yang Yongfeng , Zheng Zhaomiao , Zu Kailing , Wang Xudong , Cai Xichen , Shang Rencheng , Xu Sida , . The Element Selectivity and Laser Technique of the Laser Ion SourceUsed for On-line Isotope Separator. Chinese Physics C, 1998, 22(9): 844-852.
[14]	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.
[15]	Zhang Li , Wang Jicheng , Zhao Jinhua , Yang Yongfeng , Zheng Jiwen , Qin Zhi , Zhang Chun , Guo Tianrui . Detection of Weak γ-Activities of Neutron-Rich Isotopesin Element-Separated Sample. Chinese Physics C, 1997, 21(10): 891-896.
[16]	Wang Jicheng , Zhang Li , Guo Guanghui , Zhao Jinhua , Zheng Jiwen . Cross Section Measurements of Neutron-Rich Hg Isotopes in Reaction of 28MeV/u ¹⁸O with Thick Natural Lead Target. Chinese Physics C, 1995, 19(8): 686-691.
[17]	WEN Wan-Xin , GU Jin-Nan . Mixed Symmetry States in Gd Isotopes. Chinese Physics C, 1992, 16(4): 379-384.
[18]	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.
[19]	HUANG Ye-Cheng . Beam Optics Principle of the ISOLAN Facility. Chinese Physics C, 1991, 15(3): 234-239.
[20]	HUANG Ye-Cheng , WANG Tong-Qing , TAN Jin-Feng , GUO Bin , FAN Hong-Mei . A STATUS REPORT OF ISOLAN ——THE ON-LINE ISOTOPE SEPARATOR IN LANZHOU. Chinese Physics C, 1990, 14(1): 70-75.

Access

Get Citation

ZHANG Tian-Jue. Design Method for ISOL′s Target System[J]. Chinese Physics C, 2002, 26(3): 290-298.

ZHANG Tian-Jue. Design Method for ISOL′s Target System[J]. Chinese Physics C, 2002, 26(3): 290-298. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2001-04-09
Revised: 1900-01-01

Article Metric

Article Views(4082)
PDF Downloads(628)
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

Design Method for ISOL′s Target System

Corresponding author: ZHANG Tian-Jue,

China Institute of Atomic Energy,Beijing 102413,China2 Oak Ridge National Lab.,P.O.Box 2008,Oak Ridge,TN 37831,USA

Received Date: 2001-04-09

Accepted Date: 1900-01-01

Available Online: 2002-03-05

Abstract: The target system design is one of the key problems in the ISOL facility for RIB generation. In this paper,the diffusion and adsorption processes in the target materials are simulated so as to investigate the release time of radioactive species from the uniform or Gaussian distribution,cylindrical,spherical or planar target materials operated at different temperatures based on the idea of using ion implantation at HRIBF for the selection of RIB targets. The effusion process from the surface of the target material to the ionization chamber of the online ion source is also investigated in this paper. The Monte-Carlo techniques are used for the numerical simulation based on the measurement data of surface physics from ZFK,Germany. The empirical formulas and the tables of characteristic effusive-flow times for various particles through tubes of different dimension and material are extracted from the simulation. One can design the dimension of the effusion tube and determine the material for the tube by using the formulas and the tables.

HTML

Reference (1)

Design Method for ISOL′s Target System

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article