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The effect of emitted electron from carbon nanotube (CNT), of which shape is easy to emit electrons, on the X-ray intensity radiated using a polarized pyroelectric single crystal of LiNbO3 was investigated at an air pressure of approximately 7times10-3 Pa. The negatively charged surface of the crystal was placed opposite an oxygen-free copper foil target, its temperature was altered, and the electric...
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 generation equipment as an electron source, tandem-type X-ray radiation equipment...
The dependence of X-ray intensity on the pressure and type of ambient gas was investigated for LiNbO3 single crystals polarized in the c-axis direction at pressures of approximately 1 to 30 Pa. Ionization of surrounding gas molecules by the electric field generated by the crystal led to the production of both positive ions and free electrons. The electrons were accelerated toward a Cu target, radiating...
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