NUMERICAL-SIMULATION OF THE RESPONSE OF LI STATE DENSITIES TO POWER INTERRUPTION IN AN INDUCTIVELY-COUPLED PLASMA

The response of Li levels to power interruption in an inductively coup led plasma (ICP) is calculated by using a time dependent collisional r adiative model of the Li system, extended with transport. The input da ta for the calculations, the electron density, the electron temperatur e, the transport frequency of the ions and the evaporation source are estimated on the basis of experiments. The obtained results show a ver y good agreement with experimental results when the ionization flow th rough the system by evaporation and heating of analyte is taken into a ccount.