TY - JOUR
T1 - Magnetic Search Coil (MSC) of Plasma Wave Experiment (PWE) aboard the Arase (ERG) satellite
AU - Ozaki, Mitsunori
AU - Yagitani, Satoshi
AU - Kasahara, Yoshiya
AU - Kojima, Hirotsugu
AU - Kasaba, Yasumasa
AU - Kumamoto, Atsushi
AU - Tsuchiya, Fuminori
AU - Matsuda, Shoya
AU - Matsuoka, Ayako
AU - Sasaki, Takashi
AU - Yumoto, Takahiro
N1 - Funding Information:
This study was supported by a Grant-in-Aid for Young researchers from the Hokuriku Bank, Ltd. A part of this study was carried out under the joint research program of the Solar-Terrestrial Environment Laboratory, Nagoya University, and by the Japan Society for the Promotion of Science (JSPS) KAKENHI Grant Number 16H04056. The authors would like to extend sincere thanks to Mr. T. Kitase, Mr. A. Asano, and Mr. Y. Tokunaga for their efforts in the laboratory experiments and magnetic field simulations. Gratitude is also extended to Mr. H. Tanakano of the Meiwa System and Mr. Y. Sato for developing the breadboard model of the MSC, and to Dr. S. Nakazawa and Dr. M. Mita of the ISAS/JAXA for their support during the electromagnetic compatibility tests. The authors would also like to thank Dr. I. Nagano, Dr. G. Chanteur, and Dr. C. Coillot for their valuable discussions on the MSC, the NIPPI corp. members involved in the MSC, and the Mitsubishi Heavy Industries, Ltd. and Meisei Electric Co., Ltd. engineers that participated in developing the PWE. Finally, the authors would like to thank all members of the ERG project and the ERG Science Center.
PY - 2018/12/1
Y1 - 2018/12/1
N2 - 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 20fT/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.[Figure not available: see fulltext.].
AB - 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 20fT/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.[Figure not available: see fulltext.].
KW - Arase (ERG) satellite
KW - Geospace
KW - Plasma waves
KW - Radiation belts
KW - Search coil magnetometer
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U2 - 10.1186/s40623-018-0837-1
DO - 10.1186/s40623-018-0837-1
M3 - Article
AN - SCOPUS:85046533709
VL - 70
JO - Earth, Planets and Space
JF - Earth, Planets and Space
SN - 1343-8832
IS - 1
M1 - 76
ER -