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Effect of Direction of Magnetic Field and Probe Surface on Measurement of the Electron Density by Electron Density and Temperature Probe

Takahiro Miyazaki, Josaphat Tetuko Sri Sumantyo, Takumi Abe, Tomoyuki Nakazono, Koh-Ichiro Oyama


The electron density and temperature probe (EDTP) was proposed by Oyama and others instead of a Langmuir probe that is the conventional measurement tool of an ionosphere measurement. The EDTP is the most reliable instrument to measure the electron density and temperature of ionosphere. The EDTP sweeps high frequencies which were applied to a probe and measures the resonance frequency of a plasma in the electron density measurement. The plasma of ionosphere is influenced by the magnetic field of the Earth. Therefore, the electron density varies by the relationship between the plane of the probe and the directions of the magnetic field. We generated a plasma in the space plasma chamber and changed the magnetic field of the chamber using a Helmholtz coil. In this study, we investigated the effects that are caused by the electron density in the direction of the magnetic field. As a result, we found the electron density become very high when the magnetic field was applied to the direction of the front of the disk probe.


microsatellite; ionosphere; Electron Density and Temperature Probe; electron density and electron temperature;

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