Simulation possibilities of vacuum electronic devices with CST PARTICLE STUDIO&amp;#x2122;

Balk, Monika C.

doi:10.1109/ivelec.2008.4556402

Cited by 13 publications

(4 citation statements)

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“…Voltages are assigned to these primal grids at the edges and magnetic flux are assigned through the facets. The primal grid and its dual (incorporating the electric flux and currents) completely discretize the integral form of all four Maxwell's equations in any type of time dependent behavior . This dual grid type of discretization uses Crank‐Nicolson Scheme along with other mathematical formulas to calculate stability and energy conservation before starting with numerical calculations .…”

Section: Pic Simulation and Resultsmentioning

confidence: 99%

Cold‐test of reltron modulation section and PIC simulation study on output power and efficiency

Shee

Dwivedi

2019

Int J RF Microw Comput Aided Eng

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Parametric analysis and cold test of reltron modulation section are presented along with particle-in-cell (PIC) simulation results. A cavity is designed to have maximum separation among the three resonant modes 0, π/2, and π. Electromagnetic (EM) simulation software packages CST Microwave Studio (MWS) and MAGIC are used to obtain and compare the electromagnetic field patterns and resonant frequencies. Both the software predict the modes with identical field pattern and a difference of 1.3% to 3.8% in resonant frequency. The MAGIC code used here captures all three modes successfully. The designed cavity is fabricated and S 11 is measured. The frequencies of measured S 11 minima differ by 1.6% to 3.5% from the simulated values and closely match with that of the resonant modes. Furthermore, the modulation section is parametrically studied to observe the dependence of the resonant frequencies on the physical dimensions. The key parameters that govern the operating frequency and mode separation are identified. The Q factors are calculated from S11, and after that, the cavity reactance from loaded Q. Particle-in-cell (PIC) simulation results indicate that the mode separation improves overall system performance in terms of output power and efficiency. K E Y W O R D Sdirect energy weapon, microwave tube, relativistic electron beam, resonant cavity, S parameter

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Section: Pic Simulation and Resultsmentioning

confidence: 99%

Cold‐test of reltron modulation section and PIC simulation study on output power and efficiency

Shee

Dwivedi

2019

Int J RF Microw Comput Aided Eng

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“…These solvers use different simulation techniques that are suitable for various applications. For the results presented in this paper the particle tracking solver was used [11].…”

Section: Methodsmentioning

confidence: 99%

Modelling the behaviour of microchannel plates using CST particle tracking software

2022

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Photon counting detectors are essential for many applications, including astronomy, medical imaging, nuclear and particle physics. An extremely important characteristic of photon counting detectors is the method of electron multiplication. In vacuum tubes such as photomultiplier tubes and microchannel plates (MCPs), secondary electron emission (SEE) provides electron multiplication through an accelerating field across the dynode(s). A significant electron cascade can be observed in these structures which are routinely used in industry and research. Both devices have been thoroughly tested experimentally. Developing new MCP designs can be expensive and time consuming so the ability to simulate new structures will provide many advantages to instrument designers and manufacturers. There are, however, significant challenges in accurately simulating MCPs, with many geometrical variables to consider as well as material SEE properties. The SEE process is probabilistic, and with MCPs having a very high gain, significant computational resource is required to simulate the resulting electron output for a model. In our research we illustrate how this can be achieved by developing an MCP model using Computer Simulation Technology (CST) Studio Suite software. The model consists of a charged particle source, a small seven-pore MCP structure (including electrodes, resistive and emissive surfaces), as well as the readout anode, with appropriate potentials applied to the components of the model. We present simulation results from the modelled MCPs, demonstrate electron multiplication performance, and compare these results with those predicted by theory. Our goal is to expand this model and identify optimum MCP parameters, for various science applications, using novel materials to optimise detector performance.

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“…To verify the operability and to investigate the proposed virpertron design, 3D PIC-modelling in the CST Particle Studio 2016 (Ref. 16) package has been performed. Previously, a) Electronic mail: hramovae@gmail.com 1070-664X/2017/24(7)/073102/5/$30.00…”

Section: Virpertron Design and Featuresmentioning

confidence: 99%

Virpertron: A novel approach for a virtual cathode oscillator design

et al. 2017

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In this paper, we propose a novel approach for the design of a virtual cathode oscillator. As a new concept, we suggest a microwave system containing an annular relativistic electron beam travelling through the drift space with dielectric inserts characterized by different values of permittivity. In this case, a virtual cathode which is the source of powerful electromagnetic oscillations forms at the junction of different dielectric materials. According to the mechanism of virtual cathode formation, we have called this device as a virpertron. We have carried out a detailed numerical investigation of virtual cathode formation features in this system via 3D electromagnetic PICsimulation using CST Particle Studio. We have also studied the spectral properties of the microwave radiation generated by the virpertron.

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Simulation possibilities of vacuum electronic devices with CST PARTICLE STUDIO™

Cited by 13 publications

References 0 publications

Cold‐test of reltron modulation section and PIC simulation study on output power and efficiency

Cold‐test of reltron modulation section and PIC simulation study on output power and efficiency

Modelling the behaviour of microchannel plates using CST particle tracking software

Virpertron: A novel approach for a virtual cathode oscillator design

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