Turkish Journal of Physics
Article Title
DOI
10.3906/fiz-1208-8
Abstract
A cold field emission from LaB_6/W-coated cathodes has been investigated with a high-accuracy and low-cost retarding field analyzer instrument. Guidelines are provided for measurements of Fowler-Nordheim (FN) characteristics and total energy distributions using a single set-up and direct detection technique to address presumed shortages in sophisticated instrumental requirements for integral investigation. Electron emission from LaB_6 nanoprotrusions, deposited on a tungsten microtip, was successfully investigated. Results emphasize a metallic behavior of the emitter in accordance with the FN theory. No size effects were observed for protrusions of 300 nm in radii.
Keywords
Field electron emission, Fowler-Nordheim theory, total energy distribution, retarding field analyzer
First Page
219
Last Page
228
Recommended Citation
AL-TABBAKH, AHMED ABDURRAHMAN AHMED; MORE, MAHENDRA A.; and JOAG, DILIP S.
(2013)
"Development and utilization of a retarding analyzer for field emission investigation of LaB_6/W emitter,"
Turkish Journal of Physics: Vol. 37:
No.
2, Article 9.
https://doi.org/10.3906/fiz-1208-8
Available at:
https://journals.tubitak.gov.tr/physics/vol37/iss2/9
