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Child's Law Benchmark

Space charge limited emission is a phenomenon that restricts the current of charged particles that can be released from a surface. As the electron current released by a cathode increases, so does the magnitude of the charge density in the immediate vicinity of the cathode. This distribution of charge density exerts an electric force on the emitted electrons, directed toward the cathode. The ...

Rössler Attractor

A Rossler attractor is a system of three non-linear, ordinary differential equations. The Rossler attractor is similar in nature to the Lorenz attractor. The non-linear equations can be solved in COMSOL by conveniently using the Massless formulation available in the Mathematical Particle Tracing interface.

Charge Exchange Cell Simulator

A charge exchange cell consists of a region of gas at an elevated pressure within a vacuum chamber. When an ion beam interacts with the higher-density gas, the ions undergo charge exchange reactions with the gas, creating energetic neutral particles. It is likely that only a fraction of the beam ions will undergo charge exchange reactions. Therefore, in order to neutralize the beam, a pair of ...

Laminar Static Particle Mixer Designer - new

In static mixers, a fluid is pumped through a pipe containing stationary mixing blades. This mixing technique is well suited for laminar flow mixing, because it generates only small pressure losses in this flow regime. When a fluid is pumped through the channel, the alternating directions of the cross-sectional blades mix the fluid as it passes along the length of the channel. The static mixing ...

Sensitive High Resolution Ion Microprobe - new

This tutorial utilizes the Particle Beam feature to examine the performance of a high-precision spectrometer. An ion beam is subjected to electric and magnetic forces, and only a fraction of the incoming beam is transmitted to the detector. The Particle Counter feature is used to compute the transmission probability, and to visualize the nominal trajectory of the transmitted beam.

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