Abstract

The current work reports the optimum design conditions of a direct current plasma enhanced chemical vapor deposition grown multi-walled carbon nanotube based micro-focus X-ray tube with dual focusing lens. Extensive simulations were performed in order to determine the configuration that would generate a desirable focal spot size. Several dimensions of the X-ray basic structure and the focusing lens were manipulated using a commercially available simulation package. A manipulation of the factors (i.e. geometric parameter, axial distances, and bias voltages variances) and their effects on the focal spot size were also analyzed. A remarkable reduction in the focal spot size was achieved at the anode target via simulation and high resolution images were obtained in a prototype X-ray generator through standard line pattern test.

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