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タイトル: | Magnetic Search Coil (MSC) of Plasma Wave Experiment (PWE) aboard the Arase (ERG) satellite |
著者: | Ozaki, Mitsunori Yagitani, Satoshi Kasahara, Yoshiya Kojima, Hirotsugu https://orcid.org/0000-0002-4609-3500 (unconfirmed) Kasaba, Yasumasa Kumamoto, Atsushi Tsuchiya, Fuminori Matsuda, Shoya Matsuoka, Ayako https://orcid.org/0000-0001-5777-9711 (unconfirmed) Sasaki, Takashi Yumoto, Takahiro |
著者名の別形: | 小嶋, 浩嗣 |
キーワード: | Search coil magnetometer Arase (ERG) satellite Plasma waves Radiation belts Geospace |
発行日: | 4-May-2018 |
出版者: | Springer Nature |
誌名: | Earth, Planets and Space |
巻: | 70 |
論文番号: | 76 |
抄録: | This paper presents detailed performance values of the Magnetic Search Coil (MSC) that is part of the Plasma Wave Experiment on board the Arase (ERG) satellite. The MSC consists of a three-axis search coil magnetometer with a 200-mm-long magnetic core. The MSC plays a central role in the magnetic field observations, particularly for whistler mode chorus and hiss waves in a few kHz frequency range, which may cause local acceleration and/or rapid loss of radiation belt electrons. Accordingly, the MSC was carefully designed and developed to operate well in harsh radiation environments. To ascertain the wave-normal vectors, polarizations, and refractive indices of the plasma waves in a wide frequency band, the output signals detected by the MSC are fed into the two different wave receivers: one is the WaveForm Capture/Onboard Frequency Analyzer for waveform and spectrum observations in the frequency range from a few Hz up to 20 kHz, and the other is the High Frequency Analyzer for spectrum observations in the frequency range from 10 to 100 kHz. The noise equivalent magnetic induction of the MSC is 20 fT/Hz¹/² at a frequency of 2 kHz, and the null depth of directionality is − 40 dB, which is equivalent to an angular error less than 1°. The MSC on board the Arase satellite is the first experiment using a current-sensitive preamplifier for probing the plasma waves in the radiation belts. |
著作権等: | © The Author(s) 2018. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
URI: | http://hdl.handle.net/2433/234512 |
DOI(出版社版): | 10.1186/s40623-018-0837-1 |
出現コレクション: | 学術雑誌掲載論文等 |
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