Design Method for ISOL′s Target System

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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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    沈阳化工大学材料科学与工程学院 沈阳 110142

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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

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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