Diamond current amplifier for spatially-distributed beam generation

Author

Yater, J.E. ; Shaw, J.L. ; Jensen, K.L. ; Butler, J.E. ; Pate, B.B. ; Feygelson, T.

Author_Institution

Electron. Sci. & Technol. Div., Naval Res. Lab., Washington, DC, USA

fYear

2009

fDate

28-30 April 2009

Firstpage

521

Lastpage

522

Abstract

A diamond current amplifier is being developed to provide high-current-density electron beams needed for sheet beam generation. Thin single-crystal CVD diamond films are being grown and optimized with respect to crystal purity, film thickness, and surface quality. Electron emission measurements taken from fabricated amplifiers will be used to characterize and optimize the emission gain, emitted electron energy spread, and spatial uniformity of the emitted beam.

Keywords

CVD coatings; amplifiers; diamond; electron beams; electron guns; secondary electron emission; thermionic cathodes; C; cold cathode technology; diamond current amplifier; electron emission measurements; electron gun; emission gain; emitted electron energy spread; high-current-density electron beam; secondary emission; sheet beam generation; spatial uniformity; spatially-distributed beam generation; thermionic cathode; thin single-crystal CVD diamond films; Cathodes; Circuits; Current density; Electron beams; Electron emission; Energy measurement; Gain measurement; Impurities; Laboratories; Optical films; current amplifier; diamond; negative electron affinity; secondary emission; sheet electron beam;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference, 2009. IVEC '09. IEEE International

Conference_Location

Rome

Print_ISBN

978-1-4244-3500-5

Electronic_ISBN

978-1-4244-3501-2

Type

conf

DOI

10.1109/IVELEC.2009.5193460

Filename

5193460