Spatially resolved x-ray laser spectra and demonstration of gain in nickel-like systems

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A recent series of experiments have provided spatially resolved near field images of several candidate x-ray lasing transition in neon-like, nickel-like, and hydrogen-like ions from laser-produced plasmas. From these time-gated, spatially, and spectrally resolved measurements the source size for the J = 0 - 1 and the J = 2 - 1 transitions in Ne-like selenium have been determined. Source regions as small as 50 ..mu..m have been observed on transitions with gain-length products >9. In addition, we have obtained the first experimental evidence for the amplification of spontaneous emission in the nickel-like ions of europium and ytterbium. Gains of ... continued below

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Pages: 9

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Whelan, D.A.; Keane, C.J.; MacGowan, B.J.; Matthews, D.L.; Trebes, J.E. & Eckart, M.J. September 25, 1987.

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A recent series of experiments have provided spatially resolved near field images of several candidate x-ray lasing transition in neon-like, nickel-like, and hydrogen-like ions from laser-produced plasmas. From these time-gated, spatially, and spectrally resolved measurements the source size for the J = 0 - 1 and the J = 2 - 1 transitions in Ne-like selenium have been determined. Source regions as small as 50 ..mu..m have been observed on transitions with gain-length products >9. In addition, we have obtained the first experimental evidence for the amplification of spontaneous emission in the nickel-like ions of europium and ytterbium. Gains of order 1 cm/sup -1/ and gain-length products of up to 3.8 are observed on the J = 0 - 1, 4d-4p transitions in Eu + 35 at 65.26 and 71.00 A. Analogous transitions in Yb = +42 have been identified and some evidence for ASE has been observed. 7 refs., 11 figs.

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Pages: 9

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NTIS, PC A02; 3.

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  • 31. SPIE annual international technical symposium on optical and optoelectronic applied science and engineering, San Diego, CA, USA, 16 Aug 1987

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  • Other: DE88003957
  • Report No.: UCRL-97420
  • Report No.: CONF-8708110-29
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 5643012
  • Archival Resource Key: ark:/67531/metadc1092815

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  • September 25, 1987

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  • Feb. 10, 2018, 10:06 p.m.

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  • April 26, 2018, 7:46 p.m.

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Whelan, D.A.; Keane, C.J.; MacGowan, B.J.; Matthews, D.L.; Trebes, J.E. & Eckart, M.J. Spatially resolved x-ray laser spectra and demonstration of gain in nickel-like systems, article, September 25, 1987; [Livermore,] California. (digital.library.unt.edu/ark:/67531/metadc1092815/: accessed September 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.