Simulation of the Lanzhou Penning Trap LPT

• 作 者: 黄文学 王均英 王玥 田玉林 朱志超 徐瑚珊 肖国青
• 机 构: Institute of Modern Physics, Chinese Academy of Sciences,Graduate University of Chinese Academy of S
• 出 处: 中国物理C
• 发表日期: 2004年期
• 关键词: Lanzhou magnetron Trap evaporation behaviour isotopes unexpected limitations res

The LPT (Lanzhou Penning Trap) is under construction and its task is to perform direct mass measurement of fusion-evaporation residues and if possible for heavy isotopes. Detailed simulations have been done for a good understanding to the ion's movement and mechanics in the trap. The optimization of the LPT is also performed based on the simulation. With a scale of 0.5 mm per grid used in the simulation and many other limitations a highest mass resolution has been achieved to be 1.9×10-5. An unexpected behaviour in the simulation related to magnetron motion has been found.

The LPT (Lanzhou Penning Trap) is under construction and its task is to perform direct mass measurement of fusion-evaporating residues and if possible for heavy isotopes. Detailed simulations have been done for a good understanding to the ion's movement and mechanics in the trap. The optimization of the LPT is also performed based on the simulation. With a scale of 0.5 mm per grid used in the simulation and many other limitations a highest mass resolution has been to 1.9 × 10-5. An unexpected behavior in the simulation related to magnetron motion has been found.