Title of article
Development and utilization of a retarding analyzer for field emission investigation of LaB6/W emitter
Author/Authors
AL-TABBAKH, Ahmed A. A. University of Pune - Center for Advanced Studies in Material Science and Condensed Matter Physics - Department of Physics, India , MORE, Mahendra A. University of Pune - Center for Advanced Studies in Material Science and Condensed Matter Physics - Department of Physics, India , JOAG, Dilip S. University of Pune - Center for Advanced Studies in Material Science and Condensed Matter Physics - Department of Physics, India
From page
219
To page
228
Abstract
A cold field emission from LaB6 /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 LaB6 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 e ects were observed for protrusions of 300 nm in radii.
Keywords
Field electron emission , Fowler{Nordheim theory , total energy distribution , retarding field analyzer
Journal title
Turkish Journal of Physics
Journal title
Turkish Journal of Physics
Record number
2528822
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