X-ray laser experiments using laser-vaporized copper-foil plasmas

  title={X-ray laser experiments using laser-vaporized copper-foil plasmas},
  author={Raymond C. Elton and T. N. Lee and William A. Molander},
  journal={Journal of The Optical Society of America B-optical Physics},
Recent exploratory experiments used laser-vaporized copper films in a search for gain on 3s–3p transitions in neonlike Cu xx plasmas. The Naval Research Laboratory Pharos iii laser was operated at 100–330 J with mostly 2-nsec pulses. The plasma length, the laser energy and pulse shape, and the copper thickness were varied. Vacuum-ultraviolet and x-ray spectroscopy and pinhole photography measured axial emission, homogeneity, front–rear symmetry, and electron temperature. A novel slotted-copper… 

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