Laser-plasma acceleration

DESY continues to make pioneering contributions to the field of accelerator technologies. In 1964, DESY launched Germany’s first ring accelerator. Since then, DESY has built the large-scale accelerators HERA, DORIS, PETRA, FLASH and, in 2016, the European XFEL. Now another ground-breaking achievement is in the offing: PETRA IV will be the first facility in the world to use laser-plasma acceleration (LPA) to inject electrons into its storage ring.

Pink electron clouds stick together in round bundles — In laser-plasma acceleration, a high-intensity laser pulse (red) passing through an ionised gas produces a bubble-shaped plasma wave made up of electrons (white). A bunch of electrons (centre) rides this wave like a surfer and is accelerated to high energies over very short distances. This allows plasma accelerators to be about a thousand times smaller than conventional systems. Picture: DESY/Science Communication Lab © DESY, Science Communication Lab

This new technology can potentially lead to more sustainable research solutions because it draws on fewer resources: LPAs take up less space and require less infrastructure than conventional accelerators. They are also expected to consume less electricity, reducing the long-term costs and contributing to a more sustainable operation.

LPA could not only change the research landscape but also bring a wide range of benefits. By continuing to develop LPA, Germany could take on a leading role in the field of particle accelerators and strengthen its position as a centre for innovative research. The more compact accelerator technology could lead to advanced applications in medical technology, including new forms of cancer treatment using precision radiotherapy. Materials testing and nanotechnology also stand to benefit.

Detailed animation showing laser and plasma wave.

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