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在刀片型场致电离质谱计离子源中,计算电场和离子轨迹的一种计算机模型已有描述,并使用于一种杜邦(CEC)21—110B的场致离子源中,电场的计算是利用一种基于拉普拉斯方程的5点有限差分方法。
A computer model for calculating electric fields and ion trajectories has been described in blade ionization mass spectrometer ion sources and used in a field ion source of DuPont (CEC) 21-110B, the calculation of which is made using A 5 - Point Finite Difference Method Based on Laplace Equation.