@article{oai:jaxa.repo.nii.ac.jp:00032105,
 author = {渡辺, 勇三 and 江尻, 全機 and 大林, 辰蔵 and WATANABE, Yuzo and EJIRI, Masaki and OBAYASHI, Tastuzo},
 issue = {2_B},
 journal = {東京大学宇宙航空研究所報告},
 month = {May},
 note = {Capacitance probe, a kind of RF plasma probes, was installed to measure the electron density in the lower ionosphere using S-210-5 sounding rocket on September 28, 1970 at Kagoshima Space Center. Unfortunatly, the observation was not carried out because of the failure of the separation of the rocket nose cone. The study of the capacitance probe have been performed in the laboratory plasma and good agreements with the impedance probe and the Langmuir probe methods to measure the electron density in a plasma have been obtained. S-210-6 sounding rocket was launched on January 21, 1972, and the capacitance probe, the impedance probe and the fixed bias Langmuir probe were installed. The electron density in the lower ionosphere (72 km～109 km) was successfully measured with these three plasma probe methods, and the ionogram simultaneously obtained at Yamagawa Radio Observatory shows the same electron density value at E layer. Some problems about the probe methods onboard the sounding rocket are discussed, especially about the wake effect on the frequency spectrum of the antenna impedance and the v×B effect on the capacitance probe and the Langmuir probe. The relation between the cyclotron harmonics and the sheath resonance frequency, and its electron density dependency are shown both in the rocket experiment and in the laboratory plasma experiment. The improved type of the capacitance probe is developed and the experiment will be carried out in January, 1973, using S-210-8 sounding rocket., 資料番号: SA0125217000},
 pages = {413--427},
 title = {S-210-6号機による電離層電子密度の測定},
 volume = {9},
 year = {1973}
}