Abstract
A laser plasma X-ray source of narrow spectral range in the water-window region, is reported using a 50–50 (atomic fraction) mixture of gold-copper mix-Z planar target. Plasma was produced using the second harmonic beam of an Nd:glass laser focused to an intensity ∼1013 W/cm2 on the target. The spectrum of the plasma radiation transmitted through a free-standing 0.4 μm aluminium/0.9 μm vanadium X-ray filter foil was measured to lie in the narrow-band of 24–26 Å. This provides a debris-free X-ray dose of 2–3 mJ/sr which can be used for single shot X-ray imaging of live biological samples.
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52.38.Mf; 52.38.Ph; 52.70.La
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Chakera, J., Kumbhare, S., Naik, P. et al. Narrow band X-ray emission in the water-window spectral region from a laser heated gold copper mix-Z plasma. Appl. Phys. B 86, 519–522 (2007). https://doi.org/10.1007/s00340-006-2533-2
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DOI: https://doi.org/10.1007/s00340-006-2533-2