WebOct 31, 2024 · The experiments of Langmuir on the Edison effect (aka thermal emission) showed that the amount of current drawn between a planar diode is related to the … WebJan 13, 2005 · The fundamental Child–Langmuir limit on the maximum current density in a vacuum between two infinite parallel electrodes is one of the most well known and often applied rules of plasma physics. We develop a simple model using vacuum capacitance, conservation of energy, and conservation of charge to derive the Child–Langmuir space …
A simple physical derivation of Child–Langmuir space-charge …
WebAug 2, 2024 · Its size, comparable to a classical Debye sheath, is shown to vary with a 2/3 exponent of the wall potential. Finally, our simulation results show that the Child–Langmuir law is a good way to evaluate the sheath size for a large range of collisionality at any magnetic field incidence as long as the exponent is chosen accordingly. WebDefinitions of Communication Disorders and Variations. Multicultural Affairs and Resources. National Outcomes Measurement System. SIG 1, Language Learning and Education. … hagerstown md tax records
Child–Langmuir law - Wiley Online Library
WebChild-Langmuir law: Space Charge Field from a Short Electron Bunch, Laser-driven Photocathodes: Difference between SCL for DC diode and short pulse photo-emission … WebDec 3, 2024 · After generalizing this approach to determine SCLCD for any orthogonal diode as a function of only the vacuum capacitance and vacuum potential, we derive an analytical formulation of the three-dimensional Child–Langmuir law for finite parallel rectangular and disk geometries. WebFeb 1, 2009 · This paper is concerned with summarizing simple analytical models of space-charge sheaths and tracing their relation to the Child–Langmuir model of an ion sheath. The topics discussed include the Child–Langmuir law and model of a collisionless ion sheath, the Mott–Gurney law and model of a collision-dominated ion sheath, the Bohm … brampton christmas tree lighting