Inductively coupled plasma application in CW Laser Propulsion

  • Takayoshi Inoue (Department of Aeronautics and Astronautics, University of Tokyo) ;
  • Kohei Kojima (Department of Aeronautics and Astronautics, University of Toky) ;
  • Susumu Uehara (Department of Aeronautics and Astronautics, University of Toky) ;
  • Kim, iya-Komurasaki (Department of Advanced Energy, University of Toky) ;
  • Yoshihiro Arakawa (Department of Aeronautics and Astronautics, University of Tokyo)
  • Published : 2004.03.01

Abstract

A concept in which laser-sustained plasmas (LSPs) are combined with inductively coupled plasmas (ICPs) is proposed. The concept is aiming at extensions of operative conditions of a CW laser thruster due to the fact that the ICP has some characteristics which are in contrast to those of LSPs. An estimation confirmed that the concept would effectively work. And a fundamental experiment was conducted. The results showed that the radio frequency magnetic field induced by a alternate current of 13.56 MHz coupled inductively with LSPs, resulting in the enlargement of the plasma region and the attainment of the enthalpy. It is expected that some improvements will enable to transfer the RF power to the work gas more effectively and to demonstrate the synergy effect between the LSPs and the ICPs.

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