Droplet target for low-debris laser-plasma soft X-ray generation

A water window (lambda = 2.3-4.4 nm) laser-plasma X-ray source which uses ethanol droplets as target is described. This target significantly reduces debris production compared to conventional targets. The < 25 mum X-ray source primarily produces narrow bandwidth carbon and oxygen ion line emission. Absolute emission at lambda = 3.4 nm is 0.5 x 10(12) photons/(ster line pulse).

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