Title :
Fast active-current control with a push-up voltage source for carbon nanotube field-emission X-ray tubes
Author :
Jun-Tae Kang ; Jin-Woo Jeong ; Young Chul Choi ; Jae-Woo Kim ; Sungyoul Choi ; Park, Sora ; Min-Sik Shin ; Ji-Hwan Yeon ; Hyojin Jeon ; Seungjoon Ahn ; Yoon-Ho Song
Author_Institution :
Electron. & Telecommun. Res. Inst., Daejeon, South Korea
Abstract :
The advanced active-current control with a push-up voltage source is proposed for the fast operation of a carbon nanotube (CNT) field-emission X-ray tube while maintaining the advantages of improved stability and reliability. The push-up voltage source, composed of a resistor and a voltage supply, was found to reduce the response time of CNT X-ray tubes down to sub-microsecond.
Keywords :
X-ray tubes; carbon nanotubes; electric current control; field emitter arrays; CNT X-ray tubes; carbon nanotube field-emission X-ray tubes; fast active-current control; push-up voltage source; response time; voltage supply; Carbon nanotubes; Cathodes; Electron tubes; Reliability engineering; Voltage control; X-ray imaging; X-ray tube; active-current control; carbon nanotube; field emission; push-up voltage source;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2015 IEEE International
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7109-1
DOI :
10.1109/IVEC.2015.7223803
