magnetic endstation
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The WollasTON polarImeter for X-ray FEL sources (TONIX), is an energy-tunable polarimeter specifically designed for ultrashort linearly polarized extreme ultraviolet (EUV) pulsed sources and pump-probe experiments. Featuring high detection efficiency, it enables single-shot determination of the X-ray polarization angle for both diagnostic and spectroscopic investigations. Integrated directly into the beam path or by capturing a portion of the beam, the TONIX provides real-time measurement of the linear polarization angle. This angle can be altered by various physical phenomena, including magnetic order, high-density plasma matter, impurity domains, and strain. As a result, the TONIX can detect significant contrast in situations where intensity-based detection devices may not discern any noticeable differences. A simple algorithm returns the polarization angle of the detected beam for each single pulse. it is currently installed at the MagneDyn beamline at FERMI FEL and is available for researchers to utilize. Brief description of its operating principle: The incoming FEL beam (depicted in green) is divided by the first mirror, at the Brewster angle, which reflects the radiation onto the multi-channel plate (MCP) detector, MCP-R. The transmitted beam is then reflected by the second mirror, onto MCP-T.
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Last Updated on Saturday, 27 April 2024 10:51
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Elettra-Sincrotrone Trieste S.C.p.A. di interesse nazionale Strada Statale 14 - km 163,5 in AREA Science Park 34149 Basovizza, Trieste ITALY Tel. +39 040 37581 - Fax. +39 040 9380902 Anagrafe Nazionale Ricerche Cod. 51779CRP partita IVA 00697920320 |
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