Product Code: ICAL05_P517

Magnetic Confinement of Plasmas in Laser-Induced Breakdown Spectroscopy for Improved Sensitivity and Accuracy
Authors:
T. Gebre, University of Nebraska-Lincoln; Lincoln NE USA
Yongfeng Lu, University of Nebraska-Lincoln; Lincoln NE USA
Y.X. Han, University of Nebraska-Lincoln; Lincoln NE USA
Presented at ICALEO 2005

Laser-induced plasmas were created by irradiating KrF eximer laser pulses on different substrates such as Si, Al, Fe and Co. A transverse magnetic field was applied to confine the plasmas. Plasma life times were measured using a fast phototube and a fast oscilloscope in the presence and absence of a magnetic field. The results indicate that the life times of the laser-induced plasmas were enhanced by the magnetic field. The relationships of the enhancement and atomic weight were studied and the results will be presented.