By Topic

Stable high electron emission from LiNbO3single crystal

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Ming Yin ; Dept. of Electron. Eng., Tsinghua Univ., Beijing, China ; Yanlai Ren ; Li, Dejie

A sample of LiNbO3 single crystal Z-cut slice is stimulated by a high negative voltage submicrosecond pulse to obtain the emission. When the pulse voltage exceeds a threshold, which is 800V in the experiment, we observe a stable high electron emission from the sample's surface. The threshold is irrelevant to the driving frequency and the anode voltage. Below the threshold the electron emission density increases with the anode voltage, above the threshold the electron emission density varies very little with the anode voltage. The electron emission density reached a peak value of 50A/cm, when the driving pulse Vp-p is 900V. The emission current is not synchronized with the driving signal. When the frequency of the driving voltage is 10 kHz, the frequency of the emission current is only 1 Hz. The frequency of the emission current further decreases, as the driving frequency decreases.

Published in:

Vacuum Electron Sources Conference, 2004. Proceedings. IVESC 2004. The 5th International

Date of Conference:

6-10 Sept. 2004