Abstract
A miniature microwave discharge neutralizer has been developed in order to develop the miniature ion engine system. Extracted electron currents from the microwave discharge neutralizer are measured for two neutralizers, cylindrical discharge chamber with monopole antenna and the same discharge chamber as miniature microwave discharge ion thruster developed at Kyushu University for two orifice diameters. The former shows that the extracted electron current is 14 mA at incident microwave power of 4 W, 6 mA at incident microwave power of 2 W at mass flow rate of 0.005 mg/s. This small extracted current would be due to the large loss on the discharge chamber wall. On the other hand, the best extracted electron current of the latter, is 11 mA at mass flow rate of 0.005 mg/s and incident microwave power of 4 W, by optimizing the orifice diameter or position of the orifice plate. From the poor performance at incident microwave power of 2 W, the plasma- microwave coupling is worse than that of the former.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, SPACE TECHNOLOGY JAPAN
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
