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Internal Note
Report number CERN-ACC-NOTE-2024-0016
Title Active EMI Compensation for High Power Pulsed Kicker Systems in Particle Accelerators
Author(s) Stadlbauer, Tobias (CERN) ; Caspers, Fritz (European Scientific Institute (FR))
Corporate author(s) CERN. Geneva. ATS Department
Publication 2024
Imprint 31 Jul 2024
Subject category Accelerators and Storage Rings
Keywords EMI, pulsed, kickers, noise, compensation, CERN
Abstract Particle accelerators at CERN and worldwide use fast pulsed magnet systems (kickers) for beam injection, extraction, and disposal. These systems operate at high voltages (up to 80 kV) and currents (up to 30 kA) with risetimes as fast as 10 ns, producing pulses comparable to lightning strikes in terms of current amplitude, length, and spectrum. This paper presents a novel active electromagnetic interference (EMI) compensation method to address the EMI challenges inherent in these systems. The proposed method involves inducing a counter voltage into the coaxial transmission lines, effectively neutralizing voltage differences caused by the finite conductivity in the return conductors and connectors. Simulations and experimental results demonstrate significant reduction in EMI.
Submitted by [email protected]

 


 Record created 2024-08-01, last modified 2024-08-02


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