The mini accelerator STEAM (centre) is driven by Terahertz radiation (yellow, coming from both sides). It can accelerator, compress, focus and analyze the incident electron bunches (blue). Credit: DESY, Lucid Berlin
Mini Pocket accelerator combines 4 functions in one device at the push of a button. The experimental device is driven by a Terahertz radiation source and can accelerate, compress, focus and analyse electron bunches in a beam. Its active structures measure just a few millimetres across. The developers from the Center for Free-Electron Laser Science (CFEL) present their “Segmented Terahertz Electron Accelerator and Manipulator” (STEAM) in the journal Nature Photonics. Terahertz radiation is located between microwaves and the infrared in the electromagnetic spectrum.
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