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UrduResearchers used diamond mirrors to guide X-ray laser pulses around a rectangular racetrack inside a vacuum chamber. It’s an important step toward developing cavity-based X-ray free-electron lasers, or CBXFELs, to make X-ray laser pulses brighter and cleaner – more like regular lasers are today.
Tag: X-ray free-electron lasers
Machine Learning Reveals Hidden Components of X-Ray Pulses
Ultrafast pulses from X-ray lasers reveal how atoms move at femtosecond timescales, but measuring the properties of the pulses is challenging. A new approach trains neural networks to analyze the pulses. Starting from low-resolution measurements, the neural networks reveal finer details with each pulse, and they can analyze pulses millions of times faster than previous methods.
First detailed look at how charge transfer distorts a molecule’s structure
When light hits certain molecules, it dislodges electrons and creates areas of positive and negative charge. An X-ray free-electron laser study has directly observed how this charge transfer affects a molecule’s structure for the first time.
A New Way to Measure Record-Setting Electron Beams
A new, compact system has been successfully demonstrated at the Berkeley Lab Laser Accelerator (BELLA) Center to provide simultaneous high-resolution measurements of multiple electron-beam properties.