Carbon nanotube based cold cathode emitter employed x-ray tube fabrication for medical imaging applications

摘要

A x-ray module with triode configuration was fabricated using vertically aligned carbon nanotubes (VACNTs) emitters. The I-V characteristics of the module inside a vacuum chamber with angle anode were evaluated and x-ray images were derived as well. Furthermore, taking advantages of the module compactness, we made a conventional type of glass-sealed x-ray tube. We assessed the 1-V characteristics and image resolution for medical imaging applications such as early diagnosis for osteoporosis.