USE OF A LANGMUIR PROBE FOR ELECTRON TEMPERATURE DETERMINATION IN A LASER-INDUCED PLASMA

摘要

The possibility of using Langmuir probes for electron temperature determination in laser-induced plasma has been demonstrated. Laser input energies less than 15 joules have been used and electron temperatures on the order of 0.5 ev have been inferred at various distances from the target. The beam was focused to approximately a 1 mm diameter spot. It is shown that the probe current at the start of the pulse follows the laser spiking.