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ELSA - Electron Stretcher Accelerator

The University of Bonn

The Electron Stretcher Accelerator ELSA is operated by the University of Bonn of the state Nordrhein-Westfalen. It consists of three stages (injector LINAC, booster synchrotron and stretcher ring) and provides a beam of polarized and unpolarized electrons with a tunable energy of up to 3.5 GeV. Internally a beam of 200 mA can be stored and used to deliver synchrotron radiation for material research and condensed matter physics. For the main research field of hadron physics currents of several nA (unpolarized) are extracted and sent to different experimental areas.