Research on the Preparation and Performance of LaB6 Single Crystal Cathode for Micro-computed Tomography
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Abstract
The LaB6 single crystal tip was prepared by the method of drop-off electrochemical corrosion and the technique of focus ion beam. The micro topography of LaB6 single crystal tip was analyzed by scanning electron microscope. On this basis, the Vogel-type LaB6 single crystal cathode is prepared. The emission performance and its application in Micro-CT are studied. The experimental results indicate that the LaB6 single crystal cathode have higher brightness of electron beam, which can improved the X-ray intensity and the whole performance of Micro-CT.
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