Improvement of Compact X-Rays Source Using Uniaxially Polarized LiNbO3 Single Crystal

Abstract:

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X-ray radiation using pyroelectric crystal is intermittent and the X-ray intensity is low and unstable compared with a conventional X-ray radiation method, such as X-ray tube. It is expected that the X-ray intensity becomes stable if electric field intensity and supply of electron are stable. In this study, to use X-ray radiation equipment as an electron source, tandem-type X-ray radiation equipment which is composed of two LiNbO3 single crystals polarized in a z-axis is proposed. When the temperature gradient for each crystal was the same, the X-ray intensity became approximately 6 times higher at a maximum. When the temperature gradient for each crystal was reversed, the period of X-ray radiation became approximately two times longer and the X-ray intensity became approximately 20 times higher at a maximum. Moreover, the stability of X-ray radiation for the repetition of temperature could be improved.

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Periodical:

Edited by:

Shinobu Fujihara and Tadashi Takenaka

Pages:

43-46

DOI:

10.4028/www.scientific.net/KEM.445.43

Citation:

Y. Guan et al., "Improvement of Compact X-Rays Source Using Uniaxially Polarized LiNbO3 Single Crystal", Key Engineering Materials, Vol. 445, pp. 43-46, 2010

Online since:

July 2010

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Price:

$35.00

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