Speaker
Description
FLUTE, a short-pulse linac and short-bunch THz test facility, serves as an accelerator test setup for a variety of accelerator physics studies. In its final stage of expansion, it is foreseen to provide coherent radiation in ultra-short, very intense light pulses in the terahertz and far-infrared spectral range. A superconducting undulator (SCU) at the end of the accelerator structure offers the possibility to generate photon radiation between 4 THz and 12 THz (energies between 16.5 meV and 50 meV) with a high pulse energy. This energy range, for instance, is of interest for studies of water-soluble interactions.
The final undulator design was carried out by Bilfinger Nuclear & Energy Transition GmbH (BNET) in close collaboration with the Institute for Beam Physics and Technology (IBPT) of the Karlsruhe Institute of Technology (KIT). Before assembling the final undulator device the superconducting coils were trained and magnetically characterized in CASPER II, a magnetic measurement setup which is part of the Magnet and Cryogenics Facilities (MCF) at the IBPT at KIT.
In this contribution we describe the general SCU layout, presenting the results of the coil training, the local magnetic field characterization and field integral minimization of the THz-undulator coils.
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