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Tabla de Contenidos:
  • SPECTROSCOPIC ANALYSIS OF CHEMICAL SPECIES IN CARBON PLASMAS INDUCED BY HIGH-POWER IR CO2 LASER ; LIBRARY OF CONGRESS CATALOGING-IN-PUBLICATION DATA ; CONTENTS ; PREFACE ; Chapter 1 INTRODUCTION ; Chapter 2 FUNDAMENTALS OF LASER INDUCED BREAKDOWN SPECTROSCOPY (LIBS) ; 2.1. NATURE OF THE PLASMAS ; 2.2. LOCAL THERMODYNAMIC EQUILIBRIUM (LTE). MODEL FOR THE PLASMA ; 2.3. LIB PLASMA ; 2.3.1. Initiation Mechanism: Multiphoton Ionization (MPI) and Electron Impact Ionization (EII) ; 2.3.2. Electron Attachment, Recombination and Diffusion ; 2.4. ELEMENTS OF LIBS ; 2.4.1. Line Radiation.
  • 2.4.2. Continuum Radiation 2.4.3. Line Broadening; Determination of Electron Number Density from Stark Broadening of Spectral Lines ; Natural Broadening; Doppler Broadening ; Pressure Broadening; 2.4.4. Determination of Excitation, Vibrational and Rotational Temperatures ; 2.4.5. Ionization Degree of the Plasmas: Saha Equation ; 2.5. EFFECTS OF PHYSICAL VARIABLES IN LIBS ; 2.5.1. Laser Parameters ; 2.5.2. Focal Properties ; 2.5.3. Laser Absorption in the Plasma ; Chapter 3 EXPERIMENTAL ; 3.1. PULSED TEA CO2 LASER ; 3.2. SPECTROGRAPHS AND DETECTORS ; 3.3. SCHEMATIC DIAGRAM FOR LIBS.
  • 3.4. TIMING CONSIDERATIONS Chapter 4 RESULTS AND DISCUSSION ; 4.1. IDENTIFICATION OF THE CHEMICAL SPECIES IN THE PULSE LASER ABLATION PLASMA PLUME ; 4.2. Plasma Excitation, Vibrational and Rotational Temperature Measurements ; 4.3. IONIZATION DEGREE OF THE PLASMA ; 4.4. ELECTRON NUMBER DENSITY ; 4.5. EFFECT OF LASER IRRADIANCE ; 4.6. EFFECT OF AMBIENT PRESSURE ON THE PLASMA ; 4.7. SPATIAL CHARACTERIZATION ; 4.8. TEMPORAL EVOLUTION OF THE PLASMA; Chapter 5 CONCLUSION ; ACKNOWLEDGMENTS ; REFERENCES ; INDEX.