RESEARCH OF SPECTRUM LINESHAPE AND PRECISE MEASUREMENTS OF LINE INTENSITY IN LASER PLASMAS

X-ray spectrum emissions from different regions in laser plasma have different lineshape due to Doppler or Stark broadening effects. These effects were analyzed in our experiment and corresponding fitting functions are structured. Through the fitting to the experimental spectrum data,the ture lineshape can be obtained, so the line intensity can be precise measured. This method can not only be applied to spectra radiated by laser plasmas,but also spectra in other wavelength.