Carbon Nanotube
Field Emitter
A free-standing carbon nanotube (CNT) thin film is formed as a cold cathode electrode for the electron emitter.
CNT bundles in the film, aligned perpendicular to the film edge, provide many electron emission sites. A collimated dense electron beam is emitted from the tips of the CNT bundles.
Cold Cathode
X-Ray Tube
The core components of a cold cathode X-ray tube include a CNT field electron emitter, a gate with a slit, a curved elliptical cavity focusing lens, and a rotating reflective anode.
Paradigm Shift in X-Ray Tube Technology
For the next generation of X-ray systems, the hot cathode X-ray tubes must be changed to cold cathode X-ray tubes.
Carbon Nanotube
Field Emitter
A free-standing carbon nanotube (CNT) thin film is formed as a cold cathode electrode for the electron emitter.
CNT bundles in the film, aligned perpendicular to the film edge, provide many electron emission sites. A collimated dense electron beam is emitted from the tips of the CNT bundles.
Cold Cathode X-Ray Tube
The core components of a cold cathode X-ray tube include a CNT field electron emitter, a gate with a slit, a curved elliptical cavity focusing lens, and a rotating reflective anode.
Paradigm Shift in X-Ray Tube Technology
For the next generation of X-ray systems, the hot cathode X-ray tubes must be changed to cold cathode X-ray tubes.
