The Jupiter Energetic Particle Detector Instrument (JEDI) Investigation for the Juno Mission

By B. Mauk, D. Haggerty, S. Jaskulek, C. Schlemm, L. Brown, S. Cooper, R. Gurnee, C. Hammock, J. Hayes, George C. Ho and 10 more. 2017

211 citations recorded by the source corpus.

The Jupiter Energetic Particle Detector Instruments (JEDI) on the Juno Jupiter polar-orbiting, atmosphere-skimming, mission to Jupiter will coordinate with the several other space physics instruments on the Juno spacecraft to characterize and understand the space environment of Jupiter’s polar regions, and specifically to understand the generation of Jupiter’s powerful aurora. JEDI comprises 3 nearly-identical instruments and measures at minimum the energy, angle, and ion composition distributions of ions with energies from H:20 keV and O: 50 keV to >1 MeV, and the energy and angle distribution of electrons from <40 to >500 keV. Each JEDI instrument uses microchannel plates (MCP) and thin foils to measure the times of flight (TOF) of incoming ions and the pulse height associated with the interaction of ions with the foils, and it uses solid state detectors (SSD’s) to measure the total energy (E) of both the ions and the electrons. The MCP anodes and the SSD arrays are configured to determine the directions of arrivals of the incoming charged particles. The instruments also use fast triple coincidence and optimum shielding to suppress penetrating background radiation and incoming UV foreground. Here we describe the science objectives of JEDI, the science and measurement requirements, the challenges that the JEDI team had in meeting these requirements, the design and operation of the JEDI instruments, their calibrated performances, the JEDI inflight and ground operations, and the initial measurements of the JEDI instruments in interplanetary space following the Juno launch on 5 August 2011. Juno will begin its prime science operations, comprising 32 orbits with dimensions 1.1×40 RJ, in mid-2016.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/e8d85b98353ae2e1674dc0465105f69f4617dfa4

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In Astronomy and Astrophysics

Citations in the corpus

The Juno Magnetic Field Investigation (2017, methodology): “Juno’s instrument complement thus also includes a suite of fields and particle instruments for in-situ sampling; in addition to the magnetometer, Juno carries an energetic particle detector (JEDI) measuring electrons in the energy range 40–500 keV and ions from 20 keV to >1 MeV (Mauk et al. 2013), a”
Integrated Science Investigation of the Sun (ISIS): Design of the Energetic Particle Investigation (2016, methodology): “We have used these techniques successfully many times on past missions (most recently, and with very similar software, on PEPSSI, RBSPICE, and JEDI).”