Title of article
Nano-graphite cold cathodes for electric solar wind sail
Author/Authors
Victor I. Kleshch، نويسنده , , Victor I. and Smolnikova، نويسنده , , Elena A. and Orekhov، نويسنده , , Anton S. and Kalvas، نويسنده , , Taneli and Tarvainen، نويسنده , , Olli and Kauppinen، نويسنده , , Janne and Nuottajنrvi، نويسنده , , Antti Joonas Koivisto، نويسنده , , Hannu and Janhunen، نويسنده , , Pekka and Obraztsov، نويسنده , , Alexander N.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2015
Pages
5
From page
132
To page
136
Abstract
The nanographite (NG) films consisting of tiny graphite crystallites (nanowalls) are produced by carbon condensation from methane–hydrogen gas mixture activated by a direct current discharge. High aspect ratio and structural features of the NG crystallites provides efficient field electron emission (FE). Applicability and performance of the NG films in an electron gun (E-gun) of a solar wind thruster system with an electric sail (E-sail) is tested. The long-term tests are demonstrated suitability of E-gun assembly with the NG cathodes for the real space missions. The results of the tests are analyzed and physical mechanisms of the cathode aging and practical methods for improvement performance of the E-gun are proposed.
Journal title
Carbon
Serial Year
2015
Journal title
Carbon
Record number
1929495
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