Electric field solution of cylindrical hollow cathode

Author

Gook-Hee Han ; Sang-Ho Han ; Yun-Hee Cho ; Hyun-Kyo Lim ; Dong-Jun Jin ; Jung-Hyun Kim ; Ranju Jung ; Eun-Ha Choi ; Guangsup Cho

Author_Institution

Dept. of Electrophys., Kwangwoon Univ., Seoul, South Korea

fYear

2010

fDate

20-24 June 2010

Firstpage

1

Lastpage

1

Abstract

Hollow cathode is widely used in a gas discharge experiment because the electrode structure is good at the high current discharge with a high efficiency. However, the analytic solution of electric field has not been reported elsewhere to our knowledge. In this study, Laplace solution of cylindrical hollow electrode is analyzed. The profiles of potential and electric field are represented according to the hole-diameter and the depth of hollow cavity. Using the breakdown criteria, the discharge characteristics are analyzed such as the breakdown voltage, the current, and the main discharge path at the hollow cavity. The structure of hollow cathode can be discussed through this analysis.

Keywords

cathodes; discharges (electric); Laplace solution; breakdown criteria; breakdown voltage; cylindrical hollow cathode; discharge path; electric field solution; electrode structure; gas discharge; high current discharge; hollow cavity; Breakdown voltage; Cathodes; Discharges; Electric potential; Electrodes; Plasma displays;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 2010 Abstracts IEEE International Conference on

Conference_Location

Norfolk, VA

ISSN

0730-9244

Print_ISBN

978-1-4244-5474-7

Electronic_ISBN

0730-9244

Type

conf

DOI

10.1109/PLASMA.2010.5534216

Filename

5534216