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In this paper, we present the design and realization of high bandwidth pickupelectrodes with a cutoff frequency above 40 GHz. The proposed cone-shapedpickups are part of a bunch arrival-time monitor (BAM) designed for high (> 500pC) and low (20 pC) bunch charge operation mode providing for a time resolutionof less than 10 fs for both operation modes. The proposed design has a fastvoltage response, low ringing, and a resonance-free spectrum. For assessing theinfluence of manufacturing tolerances on the performance of the pickups, anextensive tolerance study has been performed via numerical simulations. Anon-hermetic model of the pickups was built for measurement and validationpurposes. The measurement and simulation results are in good agreement anddemonstrate the capability of the proposed pickup system to meet the givenspecifications.

High Bandwidth Pickup Design for Bunch Arrival-time Monitors for Free-Electron Laser