A Novel Noncontact Surface Potential Monitor for Dielectrics Under Electrons Irradiation

Author

Chaoyang Zhou ; Shengsheng Yang ; Yi Wang ; Xiaogang Qin ; Kai Tian

Author_Institution

Lanzhou Inst. of Phys., Lanzhou, China

Volume

42

Issue

11

fYear

2014

fDate

Nov. 2014

Firstpage

3609

Lastpage

3613

Abstract

A new instrumentation has been developed for noncontact monitoring of surface potential induced by electrons, both on satellites and ground. The surface potential monitor consisted of a surface charge detector head, front-end electrostatic voltage measurement circuit (EVMC), and associated control electronics. New leakage current eliminating and zero clearing techniques were used in the detector head structure and EVMC to ensure the measurement of the surface potential for a long term with range from 1 V to 10 kV, resolution <;1, which meet the general design guidelines for measurements most relevant to spacecraft charging issues.

Keywords

dielectric materials; dielectric measurement; leakage currents; sensors; spacecraft charging; surface charging; surface potential; voltage measurement; EVMC; control electronics; dielectric materials; electrons irradiation; front-end electrostatic voltage measurement circuit; leakage current eliminating techniques; noncontact monitoring; noncontact surface potential monitor; surface charge detector head; voltage 1 V to 10 kV; zero clearing techniques; Detectors; Dielectric measurement; Dielectrics; Electric potential; Physics; Surface charging; Voltage measurement; Dielectric films; electron beams; electrostatic measurements; surface charging; surface charging.;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2014.2359689

Filename

6926808