论文标题

平面场发射器之间相互空间充电效应的分子动力学模拟

Molecular Dynamics Simulations of Mutual Space-Charge Effect between Planar Field Emitters

论文作者

Haraldsson, Hakon Valur, Torfason, Kristinn, Manolescu, Andrei, Valfells, Agust

论文摘要

具有完全库仑相互作用和自洽场发射的分子动力学模拟用于检查来自平面无限二极管中来自几个发射极区域的光束之间的相互空间充电相互作用。模拟允许通过二极管间隙观察每个单个电子的轨迹。结果表明,当发射器之间的中心间距大于一半的间隙间距,发射器基本上是独立的。对于较小的间距,相互空间充电效应会迅速增加,不应折现。给出了这种效果的简单定性解释。

Molecular dynamics simulations, with full Coulomb interaction and self-consistent field emission, are used to examine mutual space-charge interactions between beams originating from several emitter areas, in a planar infinite diode. The simulations allow observation of the trajectory of each individual electron through the diode gap. Results show that when the center-to-center spacing between emitters is greater than half of the gap spacing the emitters are essentially independent. For smaller spacing the mutual space-charge effect increases rapidly and should not be discounted. A simple qualitative explanation for this effect is given.

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