Photoelectric current in cryogenic liquid mixtures

Author

Nakamura, S. ; Sakai, Y. ; Xu, Li ; Tagashira, H.

Author_Institution

Dept. of Electron. Technol., Hokkaido Polytech. Coll., Otaru, Japan

Volume

26

Issue

4

fYear

1991

fDate

8/1/1991 12:00:00 AM

Firstpage

598

Lastpage

602

Abstract

The ratio of photoelectric current J_L in mixtures of liquid nitrogen (LN₂), liquid argon (LAr), and liquid methane (LCH₄) to that in vacuum J_V was measured for a wide range of electric field strengths E. From the analysis of curves of J_L/J_V vs. E, the electron mobility μ in LN₂/LAr and LN₂/LCH₄ was estimated as a function of mol fraction of N₂ X_*, where *=N₂; μ decreased exponentially with X_*. The liquid temperature at a saturation vapor pressure of 0.1 MPa, the normal boiling temperature, and the enthalpy change for vaporization were obtained

Keywords

argon; carrier mobility; cryogenics; heat of vaporisation; liquid mixtures; nitrogen; organic compounds; organic insulating materials; photoconductivity; 0.1 MPa; Ar; LAr; LCH₄; LN₂; N₂; cryogenic liquid mixtures; electric field strengths; electron mobility; enthalpy change; liquid methane; liquid temperature; normal boiling temperature; photoelectric current; saturation vapor pressure; vaporization; Argon; Cathodes; Cryogenics; Current measurement; Dielectrics and electrical insulation; Electric variables measurement; Electron mobility; Gases; Pressure gauges; Temperature;

fLanguage

English

Journal_Title

Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

0018-9367

Type

jour

DOI

10.1109/14.83677

Filename

83677