Speaker
Description
For arrival-time monitors of the electro-optical synchronization system at the European XFEL, FELBE and other free-electron laser facilities, a novel concept based on rod-shaped pickups mounted on a printed circuit board is proposed. New simulation results show the huge potential for low charge applications foreseen at the European XFEL and FELBE for future operation modes. A theoretical jitter-charge product 𝜎t × 𝑄B of 9 fs pC was estimated for this pickup structure in combination with tailor-made ultra-wideband low-pi-voltage electro-optical modulators. The design meets the desired criteria for 1 pC operation, so it is planned to produce a prototype for first tests in FELBE. The structure is assumed to be sensitive to the production accuracy, manufacturing tolerances for different components of the pickup-structure are analyzed in this work. The results allow to identify critical dimensions and will help to predict the effect of inevitable geometric deviations.
Funding Agency
This work is supported by the German Federal Ministry of Education and Research (BMBF) under Contract No. 05K22RO2.
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