August 2, 2016

DESY-CANDLE: Undulator for THz FEL

Following the agreement between Deutsches Elektronen-Synchrotron DESY (Germany) and CANDLE Synchrotron Research Institute on “THz Undulator Exchange” signed on Armenian-German Science Day “From Theory to Practice” (October, 2015), the undulator magnetic field mapping and performance check have been launched at DESY Laboratory of Undulator Systems.

An undulator is a long magnet, having a periodic structure of alternating polarity dipoles, where the electrons move along a sinusoidal path and emit electromagnetic waves at resonant frequencies in a narrow cone in forward direction. The THz undulator magnet is the key component of the projected ALPHA (Amplified Light Pulse for High-end Applications) experimental station at AREAL electron linear accelerator with laser driven RF gun. The new station is designated for generation of coherent radiation in Mid-Infrared and THz wavelengths range based on SASE Free Electron Laser (FEL) principle, using 20-50 MeV energy electron beam from upgraded AREAL linac. The shipment of undulator magnet to CANDLE Institute is scheduled in Sep-Oct 2016.