CNT cold cathode with side-gate electrode for flat panel X-ray source

Author

Nitta, Satya ; Okawaki, Shuhei ; Abo, Satoshi ; Wakaya, Fujio ; Takai, Mineo

Author_Institution

Center for Quantum Sci. & Technol. under Extreme Conditions, Osaka Univ., Toyonaka, Japan

fYear

2013

fDate

8-12 July 2013

Firstpage

1

Lastpage

2

Abstract

A carbon nanotube (CNT) cold cathode with a side-gate electrode for a flat panel X-ray source was developed and basic characteristics of the CNT cathode with surface treatments were evaluated. The CNT cathode treated by KrF excimer laser irradiation with a high electric field pulse aging showed the best performance concerning long lifetime, while the CNT cathode treated by tape peeling method without a high electric field pulse aging showed the best performance concerning high anode current. Observed anode current at 4 kV is comparable with some of the commercially available X-ray tubes, suggesting that the CNT cathode with side-gate electrodes can be used for an electron source for a flat panel X-ray source.

Keywords

carbon nanotubes; cathodes; excimer lasers; surface treatment; CNT cold cathode; KrF excimer laser irradiation; anode current; carbon nanotube; electric field pulse aging; electron source; flat panel X-ray source; side-gate electrode; surface treatment; tape peeling method; voltage 4 kV; Anodes; Cathodes; Logic gates; Substrates; Surface treatment; carbon nanotube (CNT); flat panel X-ray source; screen printing; side-gate; surface treatment;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Nanoelectronics Conference (IVNC), 2013 26th International

Conference_Location

Roanoke, VA

Type

conf

DOI

10.1109/IVNC.2013.6624711

Filename

6624711