Beam Emission Test on Carbon Nanotube Cathode of a Gridded Pierce Gun

Author

Kim, Hae Jin ; Seo, Won Bum ; Choi, Jin Joo ; Han, Jae-Hee ; Yoo, Ji-Beom

Author_Institution

Dept. of Radio Sci. & Eng., Kwangwoon Univ.

fYear

0

fDate

0-0 0

Firstpage

479

Lastpage

480

Abstract

This paper presents the beam emission test of a triode-type Pierce gun pasted with a carbon nanotube (CNT). A DC emission current from the gridded-CNT cathode was measured to be 4.2 mA where the applied cathode voltage is -0.86 kV, grid and anode are ground, and cathode-to-grid distance is 200 mum. We also examined the mode field emission characteristics with two accelerating stages. The pulsed current emission of 2.8 mA was measured where a cathode voltage is -4 kV, cathode-grid potential difference is 1.38 kV, and pulse width is 100 mus

Keywords

carbon nanotubes; cathodes; electron beams; electron guns; electron tube testing; nanotube devices; -0.86 kV; -4 kV; 1.38 kV; 100 mus; 2.8 mA; 200 micron; 4.2 mA; DC emission current; Pierce gun; anode; beam emission test; carbon nanotube cathode; cathode voltage; grid; mode field emission; pulsed current emission; Acceleration; Anodes; Carbon nanotubes; Cathodes; Current measurement; Pulse measurements; Pulse transformers; Space vector pulse width modulation; Testing; Voltage; Pierce gun; carbon nanotube; field emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference, 2006 held Jointly with 2006 IEEE International Vacuum Electron Sources., IEEE International

Conference_Location

Monterey, CA

Print_ISBN

1-4244-0108-9

Type

conf

DOI

10.1109/IVELEC.2006.1666391

Filename

1666391