Charging Control on Alumina Surface in Vacuum by Surface Roughness and Electric Field Distribution

Author

Hosono, Takafumi ; Kato, Katsumi ; Morita, Ayumu ; Okubo, Hitoshi

Author_Institution

Nagoya Univ.

Volume

1

fYear

2006

fDate

25-29 Sept. 2006

Firstpage

113

Lastpage

114

Abstract

In this paper we investigated charging characteristics in vacuum on surface roughness of alumina and electric field distribution. The alumina insulator was placed between electrodes, and the surface charge due to field electron emission and secondary electron emission was generated. From measurement result, we quantitatively discussed charge polarity and charge density on the surface for various types of electric field distribution. Finally, we could successfully propose concept of charging control on alumina insulator in vacuum

Keywords

alumina; electric field measurement; field emission; secondary electron emission; surface charging; surface roughness; alumina insulator; alumina surface; charge density; charge polarity; charging control; electric field distribution; field electron emission; secondary electron emission; surface roughness; Charge measurement; Current measurement; Density measurement; Electric variables measurement; Electrodes; Electron emission; Insulation; Rough surfaces; Surface charging; Surface roughness;

fLanguage

English

Publisher

ieee

Conference_Titel

Discharges and Electrical Insulation in Vacuum, 2006. ISDEIV '06. International Symposium on

Conference_Location

Matsue

ISSN

1093-2941

Print_ISBN

1-4244-0191-7

Type

conf

DOI

10.1109/DEIV.2006.357244

Filename

4194824