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Diagnostic Study of Hydrogen in Large-sized Microwave Plasma Reactors by Two-Photon Absorption Laser-induced Fluorescence

Xuru Duan

ISBN 978-3-89722-718-7
106 pages, year of publication: 2001
price: 40.50 €
Two-photon laser-induced fluorescence is applied to study atomic and
molecular hydrogen in large-sized hydrogen/hydrogenetic compound microwave plasma sources. The influence of the temporal evolution of the laser pulse on the determination of the absolute atomic hydrogen density is analyzed in detail. The temporal and spatial behavior of the H atom density and its mole fraction in large-sized microwave plasma sources is characterized under different discharge conditions. The gas temperature is found to have an important influence on the distribution of the H atom density in these plasmas. A method to obtain the density and temperature of the molecular hydrogen from the laser-induced fluorescence signal is given.

Keywords:
  • laser-includes fluorescence
  • atomic hydrogen
  • microwave discharge
  • plasma
  • laser spectroscopy

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40.50 €