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

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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

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[9]	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.
[10]	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.
[11]	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.
[12]	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.
[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]	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.
[15]	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.
[16]	WEN Wan-Xin , GU Jin-Nan . Mixed Symmetry States in Gd Isotopes. Chinese Physics C, 1992, 16(4): 379-384.
[17]	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.
[18]	HUANG Ye-Cheng . Beam Optics Principle of the ISOLAN Facility. Chinese Physics C, 1991, 15(3): 234-239.
[19]	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.
[20]	SHEN WEN-QING . NEUTRON RICH ISOTOPES ⁵⁴Ti, ⁵⁶V, ⁵⁷V, ⁵⁸Cr PRODUCED IN BOMBARDMENT OF ⁵⁶Fe TARGET WITH 79OMeV ¹³⁶Xe IONS. Chinese Physics C, 1982, 6(4): 462-465.

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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

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Received: 2001-04-09
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

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.

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Design Method for ISOL′s Target System

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