The Energetic Particle Investigation for the SMART Magnetospheric Multiscale Mission

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2720 Energetic Particles: Trapped, 2723 Magnetic Reconnection (7526, 7835), 7514 Energetic Particles (2114), 7526 Magnetic Reconnection (2723, 7835), 7894 Instruments And Techniques

Scientific paper

The Solving Magnetospheric Acceleration, Reconnection, and Turbulence (SMART) payload investigation, selected by NASA for the Magnetospheric Multiscale (MMS) mission, has as its primary goal to investigate the causes and consequences of the magnetic reconnection in magnetized plasmas by making measurements within and at the boundaries of the Earth's magnetosphere. The SMART Energetic Particle Detector (EPD) investigation supports the MMS investigation of reconnection by: 1) Remotely sensing and measuring the positions and speeds of boundaries and other structures, 2) Sensing magnetic topology, 3) Remotely sensing acceleration sites; and 4) Determining the causes of energization and phase space density modifications of energetic electrons and ions. The EPD consists of two sensor types. The Flys Eye Energetic Particle Spectrometer (FEEPS) measures fast, all-sky electron spectra simultaneously from 18 different directions over the energy range of about 20 keV to 1 MeV, and it measures total ion spectra simultaneously from 6 different directions over two fan shaped fields-of-view. The Energetic Ion Spectrometer (EIS) measures ion energy spectra and composition (H and O) over 6 different directions within a fan-shaped field of view. Combined FEEPS and EIS ion measurements deliver all-sky ion measurement over the energy range of about 20 keV to 1 MeV. In this presentation we describe the EPD sensors and investigation and show how closure on the investigation goals is achieved.

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