Multipacting Simulations of Tuner-adjustable waveguide coupler (TaCo) with CST
Nuaman Shafqat, Frank Gerigk, Rolf Wegner
TL;DR
This paper investigates the multipacting phenomenon in tuner-adjustable waveguide couplers (TaCo) used in LINAC4, using CST's PIC solver to perform comprehensive simulations and analyze the results.
Contribution
It provides the first detailed simulation-based analysis of multipacting in TaCo, aiding in understanding and mitigating this phenomenon in RF structures.
Findings
Multipacting occurs at specific field levels in TaCo.
Simulation results identify critical conditions for multipacting.
Analysis helps improve RF coupler design to reduce multipacting.
Abstract
Tuner-adjustable waveguide couplers (TaCo) are used to feed microwave power to different RF structures of LINAC4. This paper studies the multipacting phenomenon for TaCo using PIC solver of CST PS. Simulations are performed for complete field sweeps and results are analysed.
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Taxonomy
TopicsGyrotron and Vacuum Electronics Research · Particle accelerators and beam dynamics · Particle Accelerators and Free-Electron Lasers