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X-ray emission from aluminium under intense, ultrashort irradiation

  • S. Banerjee
  • G. Ravindra Kumar
  • L.C. Tribedi

Abstract:

We present studies of X-ray emission from aluminium under picosecond and femtosecond irradiation in the intensity range \(\) 1012-1015 W cm-2. We use a new and simple method to measure spectrally resolved absolute X-ray yields. It is shown that the X-ray yields can be obtained for arbitrary levels of X-ray flux. We present details of the variation of the absolute yields as a function of wavelength, intensity, polarization and pulse duration of the incident laser radiation. Electron temperatures in the keV range are observed at 1015 W cm-2 with femtosecond laser pulses.

PACS. 52.25.Nr Emission, absorption, and scattering of X and -radiation - 52.40.Nk Laser-plasma interactions (e.g., anomalous absorption, backscattering, magnetic field generation, fast particle generation) - 52.50.Jm Plasma production and heating by laser beams 

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Copyright information

© EDP Sciences, Springer-Verlag, Società Italiana di Fisica 2000

Authors and Affiliations

  • S. Banerjee
    • 1
  • G. Ravindra Kumar
    • 1
  • L.C. Tribedi
    • 1
  1. 1.Tata Institute of Fundamental Research, Homi Bhabha Road, Bombay 400 005, IndiaIN

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