skip to main content

SciTech ConnectSciTech Connect

Title: The effects of magnetic field in plume region on the performance of multi-cusped field thruster

The performance characteristics of a Multi-cusped Field Thruster depending on the magnetic field in the plume region were investigated. Five magnetic field shielding rings were separately mounted near the exit of discharge channel to decrease the strength of magnetic field in the plume region in different levels, while the magnetic field in the upstream was well maintained. The test results show that the electron current increases with the decrease of magnetic field strength in the plume region, which gives rise to higher propellant utilization and lower current utilization. On the other hand, the stronger magnetic field in the plume region improves the performance at low voltages (high current mode) while lower magnetic field improves the performance at high voltages (low current mode). This work can provide some optimal design ideas of the magnetic strength in the plume region to improve the performance of thruster.
Authors:
; ; ;  [1] ;  [2]
  1. Lab of Plasma Propulsion, Harbin Institute of Technology, Harbin 150001 (China)
  2. Beijing Institute of Control Engineering, Beijing 100000 (China)
Publication Date:
OSTI Identifier:
22486471
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 10; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CUSPED GEOMETRIES; ELECTRIC POTENTIAL; ELECTRONS; MAGNETIC FIELDS; PERFORMANCE; PLUMES; SHIELDING; THRUSTERS