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Description
The Polarizable X-band Transverse Deflection Structure (PolariX TDS) is a transverse deflecting structure with variable polarization. The design is an effort of a collaboration between DESY, CERN and PSI, resulting in structures installed at both DESY and PSI.
The device can achieve sub-femtosecond resolution, depending on the operating voltage, electron beam parameters, and optics, allowing it to resolve the transverse beam properties critical for existing FELs and future facilities such as EuPRAXIA@SPARC_LAB.
The PolariX TDS allows to streak the beam in a selected transverse direction by varying the polarization of the field inside the structure, enabling the measurement of longitudinally resolved beam properties in both transverse planes, and allowing for the tomographic reconstruction of the 3D bunch charge distribution.
In this work is investigated the streaking at different polarization settings, the calibration of the device for high-power operation, and the application of the reconstruction to the nominal beam at 3 GeV of the Athos soft X-ray beamline at SwissFEL.
