Transport phenomena in point-plane geometry in liquid argon

Author

Bonifaci, N. ; Denat, A.

Author_Institution

Lab. d´´Electrostatique et de Mater. Dielectriques, Univ. Joseph Fourier, Grenoble, France

fYear

1996

fDate

15-19 Jul 1996

Firstpage

37

Lastpage

40

Abstract

In this paper, indirect measurements of charge-carrier mobilities in liquid argon are reported using space charge limited current. For a point anode, our values correspond to ionic mobilities measured by time-of-flight methods. For a point cathode, the influence of impurity level is very important. In the purest samples of liquid Ar, the highest negative mobility saturates to 2 cm^-2/Vs and this seems to be a problem of transport of energetic electrons and not of purity level. This assumption must be confirmed by trying to improve our purification setup

Keywords

argon; dielectric liquids; electron mobility; impurities; ion mobility; ionic conductivity; space-charge-limited conduction; Ar; charge injection; charge-carrier mobilities; energetic electron transport; impurity level; ionic mobilities; liquid Ar; negative mobility; point anode; point cathode; point-plane geometry; positive mobility; purity level; space charge limited current; transport phenomena; Anodes; Argon; Cathodes; Charge measurement; Current measurement; Electron mobility; Geometry; Impurities; Purification; Space charge;

fLanguage

English

Publisher

ieee

Conference_Titel

Conduction and Breakdown in Dielectric Liquids, 1996, ICDL '96., 12th International Conference on

Conference_Location

Roma

Print_ISBN

0-7803-3560-0

Type

conf

DOI

10.1109/ICDL.1996.565310

Filename

565310