Acta Optica Sinica, Volume. 42, Issue 8, 0811001(2022)
Imaging Electron Optics of Electrostatic Focusing Concentric Spherical System Part A: Electron Trajectory Equations
Figures & Tables(3)
Fig. 1. Electron trajectory in electrostatic focusing concentric spherical system composed of two electrodes. (a) n>2; (b) 1<n<2; (c) n<1
Fig. 2. Practical electron trajectory r=r(z) under cylindrical coordinate system in electrostatic focusing concentric spherical system composed of two electrodes
Table 1. Practical electron trajectory and paraxial electron trajectory in electrostatic focusing concentric spherical system composed of two electrodes
View tableTable 1. Practical electron trajectory and paraxial electron trajectory in electrostatic focusing concentric spherical system composed of two electrodes
Distance from the cathode z /mm Axial potential distribution Φ /V Practical trajectory Paraxial trajectory r(z) /mm r'(z) (z) /mm [r'(z)]* 4 476.1705 0.3666200 0.0371337 0.3666056 0.0371470 8 1176.4705 0.4665200 0.0154706 0.4664752 0.0154348 12 2307.6923 0.4996921 0.0016205 0.4995984 0.0016013 16 4444.4444 0.4801206 -0.0116827 0.4800000 -0.0116666 20 10000.0000 0.4003198 -0.0300886 0.4000000 -0.0300000
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Liwei Zhou. Imaging Electron Optics of Electrostatic Focusing Concentric Spherical System Part A: Electron Trajectory Equations[J]. Acta Optica Sinica, 2022, 42(8): 0811001
Paper Information
Category: Imaging Systems
Received: Oct. 26, 2021
Accepted: Nov. 15, 2021
Published Online: Mar. 30, 2022
The Author Email: Zhou Liwei (zhoulw@vip.sina.com)
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