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The Magnetospheric Multiscale Missions Fast Plasma Investigations Dual Electron Spectrometer DevelopmentThe Magnetospheric Multiscale mission (MMS) is designed to examine magnetic reconnection that occurs on both the Earths dayside magnetopause and in the magnetotail region on Earths night side. In order to resolve fine structures of the three dimensional electron distributions in both regions, the Fast Plasma Investigation's (FPI) Dual Electron Spectrometer (DES) is designed to measure electron distributions with a time resolution of 30 ms. In order to achieve this unprecedented sampling rate, the DES will have eight individual spectrometers each sampling 180 x 45 degree sections of the sky. Because of the field of view limitations of top hat analyzers, each spectrometer will use electro-static deflectors to change its look direction. The engineering model of the DES has been fabricated and tested. We will present the results of measurements for fields of view, angular FVVHM responses, dE/E, analyzer constant, and geometric factors for all deflection states. We will compare these results to simulation results and discuss causes of the response variations.
Document ID
20090038669
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Shappirio, M. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Adrian, M. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Aulleti, C. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Avanov, L. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Barrie, A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Chornay, D. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Moore, T. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Rosnack, T. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Tucker, C. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 24, 2013
Publication Date
January 1, 2009
Subject Category
Spacecraft Instrumentation And Astrionics
Meeting Information
Meeting: 2009 AGU Fall Meeting
Location: San Francisco, CA
Start Date: December 14, 2009
End Date: December 18, 2009
Sponsors: American Geophysical Union
Distribution Limits
Public
Copyright
Other

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