By Topic

Practical ferroelectric cathode

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.

The purchase and pricing options are temporarily unavailable. Please try again later.
6 Author(s)
Shuxin Zheng ; Dept. of Eng. Phys., Tsinghua Univ., Beijing, China ; Wenjun Li ; Chuanxiang Tang ; Quanfeng Li
more authors

Summary form only given. Ferroelectric cathodes have the advantages of high luminance, high current density and low emittance. But the high current experiments show fast deterioration of the emission properties. We found that the emission current density is lower (<1 A/cm2) if we lower the driving voltage, but the lifetime of ferroelectric cathodes is extended extremely. So we propose a practical ferroelectric cathode electron gun which can operate under low vacuum (0.1 Pa) and low temperature (300K).

Published in:

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

Date of Conference:

6-10 Sept. 2004