CHARACTERIZATION OF A LASER-PRODUCED PLASMA USING THE TECHNIQUE OF POINT-PROJECTION ABSORPTION-SPECTROSCOPY

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      CHARACTERIZATION OF A LASER-PRODUCED PLASMA USING THE TECHNIQUE OF POINT-PROJECTION ABSORPTION-SPECTROSCOPY. / Oneill, D.M.; Lewis, Ciaran; Neely, D.; Davidson, S.J.; Rose, S.J.; Lee, R.W.

      In: Physical Review A, Vol. 44, 1991, p. 2641-2648.

      Research output: Contribution to journalArticle

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      Oneill, D. M., Lewis, C., Neely, D., Davidson, S. J., Rose, S. J., & Lee, R. W. (1991). CHARACTERIZATION OF A LASER-PRODUCED PLASMA USING THE TECHNIQUE OF POINT-PROJECTION ABSORPTION-SPECTROSCOPY. Physical Review A, 44, 2641-2648.

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      Oneill, D.M.; Lewis, Ciaran; Neely, D.; Davidson, S.J.; Rose, S.J.; Lee, R.W. / CHARACTERIZATION OF A LASER-PRODUCED PLASMA USING THE TECHNIQUE OF POINT-PROJECTION ABSORPTION-SPECTROSCOPY.

      In: Physical Review A, Vol. 44, 1991, p. 2641-2648.

      Research output: Contribution to journalArticle

      Bibtex

      @article{f675ca5cbd084412818c48c2f7af0bbd,
      title = "CHARACTERIZATION OF A LASER-PRODUCED PLASMA USING THE TECHNIQUE OF POINT-PROJECTION ABSORPTION-SPECTROSCOPY",
      author = "D.M. Oneill and Ciaran Lewis and D. Neely and S.J. Davidson and S.J. Rose and R.W. Lee",
      year = "1991",
      volume = "44",
      pages = "2641--2648",
      journal = "Physical Review A (Atomic, Molecular, and Optical Physics)",
      issn = "1050-2947",
      publisher = "American Physical Society",

      }

      RIS

      TY - JOUR

      T1 - CHARACTERIZATION OF A LASER-PRODUCED PLASMA USING THE TECHNIQUE OF POINT-PROJECTION ABSORPTION-SPECTROSCOPY

      AU - Oneill,D.M.

      AU - Lewis,Ciaran

      AU - Neely,D.

      AU - Davidson,S.J.

      AU - Rose,S.J.

      AU - Lee,R.W.

      PY - 1991

      Y1 - 1991

      N2 - The technique of point-projection spectroscopy has been shown to be applicable to the study of expanding aluminum plasmas generated by approximately 80 ps laser pulses incident on massive, aluminum stripe targets of approximately 125-mu-m width. Targets were irradiated at an intensity of 2.5 +/- 0.5 x 10(13) W/cm2 in a line focus geometry and under conditions similar to those of interest in x-ray laser schemes. Hydrogenic and heliumlike aluminum resonance lines were observed in absorption using a quasicontinuous uranium back-lighter plasma. Using a pentaerythrital Bragg crystal as the dispersive element, a resolving power of approximately 3500 was achieved with spatial resolution at the 5-mu-m level in frame times of the order of 100 ps. Reduction of the data for times up to 150 ps after the peak of the incident laser pulse produced estimates of the temperature and ion densities present, as a function of space and time. The one-dimensional Lagrangian hydrodynamic code MEDUSA coupled to the atomic physics non-local-thermodynamic-equilibrium ionized material package was used to simulate the experiment in planar geometry and has been shown to be consistent with the measurements.

      AB - The technique of point-projection spectroscopy has been shown to be applicable to the study of expanding aluminum plasmas generated by approximately 80 ps laser pulses incident on massive, aluminum stripe targets of approximately 125-mu-m width. Targets were irradiated at an intensity of 2.5 +/- 0.5 x 10(13) W/cm2 in a line focus geometry and under conditions similar to those of interest in x-ray laser schemes. Hydrogenic and heliumlike aluminum resonance lines were observed in absorption using a quasicontinuous uranium back-lighter plasma. Using a pentaerythrital Bragg crystal as the dispersive element, a resolving power of approximately 3500 was achieved with spatial resolution at the 5-mu-m level in frame times of the order of 100 ps. Reduction of the data for times up to 150 ps after the peak of the incident laser pulse produced estimates of the temperature and ion densities present, as a function of space and time. The one-dimensional Lagrangian hydrodynamic code MEDUSA coupled to the atomic physics non-local-thermodynamic-equilibrium ionized material package was used to simulate the experiment in planar geometry and has been shown to be consistent with the measurements.

      M3 - Article

      VL - 44

      SP - 2641

      EP - 2648

      JO - Physical Review A (Atomic, Molecular, and Optical Physics)

      T2 - Physical Review A (Atomic, Molecular, and Optical Physics)

      JF - Physical Review A (Atomic, Molecular, and Optical Physics)

      SN - 1050-2947

      ER -

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