An overview of ionization gauges with carbon nanotube cathodes. (22nd October 2015)

• Record Type: Journal Article
• Authors: Li, Detian; Wang, Yongjun; Cheng, Yongjun; Feng, Yan; Zhao, Lan; Zhang, Huzhong; Sun, Jian; Dong, Changkun
• Is Part Of: Journal of physics. Volume 48:Number 47(2015)
• Publication Date: 2015-10-22
• Subjects: ionization gauge -- carbon nanotube -- field emission -- cathode -- vacuum metrology; Physics -- Periodicals; 530
• DOI: 10.1088/0022-3727/48/47/473001
• Languages: English
• ISSNs: 0022-3727

Abstract

Abstract: Carbon nanotubes (CNTs) as ideal electron emitters have been widely used in a variety of electronic devices, including the x-ray tube, vacuum microwave tubes, flat panel displays, electron microscopes, ionization gauges, etc. In this paper, we summarize the current status of research on a variety of ionization gauges with CNT cathodes and discuss the advantages as well as the existing problems of the novel ionization gauge. The CNT emitter-based ionization gauges have proved highly effective at ultra high and extra high vacuum measurements. This review also provides some suggestions to improve gauge performance in future work.