Report
Development and Performance of a Suprathermal Electron Spectrometer to Study Auroral Precipitations
| العنوان: | Development and Performance of a Suprathermal Electron Spectrometer to Study Auroral Precipitations |
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| المؤلفون: | Ogasawara, Keiichi, Grubbs, Guy, II, Michell, Robert G, Samara, Maria, Stange, Jason L, Trevino, John A, Webster, James, Jahn, Jorg-Micha |
| المصدر: | Review of Scientific Instruments. 87(5) |
| بيانات النشر: | United States: NASA Center for Aerospace Information (CASI), 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | Instrumentation And Photography, Plasma Physics |
| الوصف: | The design, development, and performance of Medium-energy Electron SPectrometer (MESP), dedicated to the in situ observation of suprathermal electrons in the auroral ionosphere, are summarized in this paper. MESP employs a permanent magnet filter with a light tight structure to select electrons with proper energies guided to the detectors. A combination of two avalanche photodiodes and a large area solid-state detector (SSD) provided 46 total energy bins (1 keV resolution for 3-20 keV range for APDs, and 7 keV resolution for greater than 20 keV range for SSDs). Multi-channel ultra-low power application-specific integrated circuits are also verified for the flight operation to read-out and analyze the detector signals. MESP was launched from Poker F1at Research Range on 3 March 2014 as a part of ground-to-rocket electrodynamics-electrons correlative experiment (GREECE) mission. MESP successfully measured the precipitating electrons from 3 to 120 keV in 120-ms time resolution and characterized the features of suprathermal distributions associated with auroral arcs throughout the flight. The measured electrons were showing the inverted-V type spectra, consistent with the past measurements. In addition, investigations of the suprathermal electron population indicated the existence of the energetic non-thermal distribution corresponding to the brightest aurora. |
| نوع الوثيقة: | Report |
| اللغة: | English |
| تدمد: | 1089-7623 0034-6748 |
| DOI: | 10.1063/1.4950901 |
| URL الوصول: | https://ntrs.nasa.gov/citations/20170003518 |
| ملاحظات: | NNG17PT01A NNX12AE76G NNG11PL10A |
| رقم الانضمام: | edsnas.20170003518 |
| قاعدة البيانات: | NASA Technical Reports |
| تدمد: | 10897623 00346748 |
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| DOI: | 10.1063/1.4950901 |