A High-Current, Large-Area, Carbon Nanotube Cathode

High-current electron beam generation in a diode with a multicapillary dielectric cathode

“…Recently, promising results, current density up to 20 A / cm 2 , low outgassing, and threshold electric field were demonstrated using cathodes composed of carbon nanotubes. 28 However, at the present stage of development these cathodes have relatively short lifetime, namely, ഛ10 4 pulses.…”

Monte Carlo simulation of a compact microbeam radiotherapy system based on carbon nanotube field emission technology

“…30 Although we have no knowledge on the degree of potential motion blur in future animal irradiation, we have shown that CNT-based x-ray systems are capable of at least 15 ms temporal-resolution gating that may significantly minimize any motion blur. [31][32][33] Additionally, CNT cathode technology is capable of much higher electron current densities compared to thermionic cathodes 34 and allows cathode shape to be customized according to need. For the reasons mentioned above, CNT-based x-ray technology is ideally suited for use in a compact MRT device.…”

Plasma-induced field emission study of carbon nanotube cathode

“…The field emission current density only reached A=cm 2 $ mA=cm 2 . Some studies were focused on intense current field emission properties of CNTs for application in linear induction accelerators (LIAs) [15][16][17] and high power microwave tubes [18,19]. The field emission current density can reach hundreds of A=cm 2 .…”