Title :
CNT cold cathodes for application in low current x-ray tubes
Author :
Tolt, Zhidan Li ; Mckenzie, Chris ; Espinosa, Robert ; Snyder, Scott ; Munson, Marjorie
Author_Institution :
InXitu, Inc., Mountain View
Abstract :
In this paper, we will focus on the application of CNT cold cathodes in low current X-ray tubes operating at 25kV to 40kV. Detailed discussion will include cathode performance requirements from a commercial product point of view, the performance and status of current cathodes, factors that affect the tube production yield, and operating life and reliability. Measurement of electron beam distribution from CNT cathodes and its implication in designing focused tubes will also be discussed.
Keywords :
X-ray tubes; carbon nanotubes; cathodes; electron optics; nanoelectronics; C; CNT cold cathodes; cathode performance; electron beam distribution measurement; electron optics design; low current X-ray tubes; magnetically focused X-ray tube; voltage 25 kV to 40 kV; Cathodes; Electron beams; Electron emission; Electron optics; Electron tubes; Instruments; Optical design; Production; Thermal conductivity; Thermal stability;
Conference_Titel :
Vacuum Nanoelectronics Conference, 2007. IVNC. IEEE 20th International
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4244-1133-7
Electronic_ISBN :
978-1-4244-1134-4
DOI :
10.1109/IVNC.2007.4480933
