Radiation of X-Rays in Low-Pressure Gas Using LiNbO3 Single Crystal

Abstract:

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The gas pressure and the types of ambient gas dependence of X-ray intensity were investigated for LiNbO3 single crystals polarized in the c-axis direction at pressures of approximately 1 to 30 Pa. The integrated X-ray intensity showed a local maximum value at the pressure Pmax. Pmax moved to the high-pressure side in the ambient with a large first ionization energy. Pmax was proportional to the Boltzmann factor using the first ionization energy of each ambient gas molecule. The X-ray intensity was approximated using the quadratic function, which was convex upward for the pressure. It was found that one of the causes of the decrease in X-ray intensity on the pressure side higher than Pmax was the adsorption of positive ions on the crystal electric surface.

Info:

Periodical:

Key Engineering Materials (Volumes 421-422)

Edited by:

Tadashi Takenaka, Hajime Haneda, Kazumi Kato, Masasuke Takata and Kazuo Shinozaki

Pages:

205-208

DOI:

10.4028/www.scientific.net/KEM.421-422.205

Citation:

S. Fukao et al., "Radiation of X-Rays in Low-Pressure Gas Using LiNbO3 Single Crystal", Key Engineering Materials, Vols. 421-422, pp. 205-208, 2010

Online since:

December 2009

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Price:

$35.00

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