Accession Number : AD1053238

Title :   Finite Element Analysis of Particle Ionization within Carbon Nanotube Ion Micro Thruster

Descriptive Note : Technical Report

Corporate Author : Naval Postgraduate School Monterey United States

Personal Author(s) : Fiebrandt,Jamison R

Full Text :

Report Date : 01 Dec 2017

Pagination or Media Count : 55

Abstract : As electric propulsion becomes more of a viable option for satellite station keeping, MEMS electrodes are being more thoroughly investigated for their operational capacity. Computer modelling simulations of the particle physics involved during the initial ionization events of plasma generation have proven reliable in determining the effectiveness of carbon nanotube-covered nozzles. Two different simulations, comparing angled-wall etched nozzles with and without CNT deposition, demonstrated improvement of ion beam current when the walls are lined with carbon nanotubes. These models agree well with experimental results in the initial ionization event regime. Further investigation of complete plasma physics simulation and ionization parameter characterization are required to refine the simulation before it is a complete, viable system for thruster design optimization.

Descriptors :   space propulsion , ION THRUSTERS , ionization , COMPUTER SIMULATIONS , carbon nanotubes , microsatellites , finite element analysis , electric fields , MICROELECTROMECHANICAL SYSTEMS , electrodes , particle physics , PLASMAS (PHYSICS) , nozzles , ion beams , ELECTROSTATICs , optimization , electric propulsion , cathode ray tubes , scanning electron microscopes

Subject Categories : Numerical Mathematics
      Nuclear Physics & Elementary Particle Physics
      Electric and Ion Propulsion

Distribution Statement : APPROVED FOR PUBLIC RELEASE