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

• DOI: 10.1007/s11214-013-0025-3
• Publication Date: 2013-11-25T04:42:55Z
• Authors: B. H. Mauk; D. K. Haggerty; S. E. Jaskulek; C. E. Schlemm; L. E. Brown; S. A. Cooper; R. S. Gurnee; C. M. Hammock; J. R. Hayes; G. C. Ho; J. C. Hutcheson; A. D. Jacques; S. Kerem; C. K. Kim; D. G. Mitchell; K. S. Nelson; C. P. Paranicas; N. Paschalidis; E. Rossano; M. R. Stokes
• Keywords: Jupiter (rocket family)

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