Laser-plasma accelerator could generate bright X-rays for biological imaging, simulations show

X-rays with wavelengths between approximately 2.3 and 4.4 nanometers, i.e., in the so-called water window, are particularly well suited to examining biological samples in their natural, aqueous environment. To date, however, it has been technically difficult to access this type of radiation at an appropriate quality and intensity, as only free-electron lasers in large-scale accelerator systems are capable of generating it.

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