【摘要】 用SIMION 7.0光学离子模拟软件对正电子在慢正电子束装置的静电及静磁场中的加速、输运、空间聚焦情况进行了模拟计算,初步得到了很好的空间聚焦模拟结果。对于加速能量为0.5～30keV的正电子束流聚焦半径控制在5 mm以下,满足了实验的需要。更多还原

【Abstract】 A kind of ion optics simulation software called SIMION 7.0 is used to simulate the acceleration,transportation and space focusing of the positrons of the positrons in the static electric and magnetic field in the slow positron beam device.Very good simulation results and talking are given at last.The space focusing radius of positrons reaching the target with low energy(0.5 ～ 30 keV) has been controlled less than 5 mm.更多还原