Speaker
Description
The pulsed wire technique has been used in the past mainly for trajectory control
in wigglers and undulators. Including dispersion and pulse width corrections improved significantly the quality of these measurements, especially for short period and/or long undulators. Recent approaches use the direct measured pulse instead of the model of an idealized rectangular pulse and the impact of tiny, but relevant induced currents by the wire oscillation is understood. The in-vacuum pulsed wire system at European XFEL will be part of the SUNDAE2 (Superconducting UNDulAtor Experiment) horizontal test stand. In this contribution we report on the progress made and first measurements on a 5 m long permanent magnet undulator with 40 mm period. The aim is to be a true alternative for Hall-probe measurements.
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