2.2.6 spase://CNES/Instrument/CDPP-AMDA/PSP/epiHi IS⊙IS EPI-Hi Energetic Particle Instrument Hi-Energy 2019-11-12T16:00:05Z The science objective of the Integrated Science Investigation of the Sun, ISOIS, experiment is to explore the physical mechanisms that produce, accelerate, and transport energetic particles in the inner heliosphere. This will be achieved by observing energetic electrons, protons, and heavy ions in the Sun's atmosphere and inner heliosphere to learn about the origin and seed population of solar energetic particles, how these and other particles are accelerated, and what mechanisms are responsible for transporting the different particle populations into the heliosphere. It will also contribute to tracing the flow of energy that heats and accelerates the solar corona and solar wind, and determining the structure and dynamics of the plasma and magnetic fields at the sources of the solar wind. The Integrated Science Investigation of the Sun consists of two instruments, EPI-Lo and EPI-Hi, mounted on the side of the spacecraft near the back ram-facing side, protected by the heat shield. The EPI-Hi instrument system is based on ion-implanted solid-state detectors. It comprises three detector stacks (particle telescopes). One is designated a High Energy Telescope (HET) and two are designated Low-Energy Telescopes (LET1 and LET2). Please Acknowledge the National Aeronautics and Space Administration, NASA spase://SMWG/Person/David.J.McComas PrincipalInvestigator spase://SMWG/Person/Eric.R.Christian DeputyPI Parker Solar Probe Mission Instrument web page, JPL http://parkersolarprobe.jhuapl.edu/Spacecraft/index.php#Instruments Parker Solar Probe Mission Instrument web page, NASA https://www.nasa.gov/content/goddard/parker-solar-probe-instruments/ SolidStateDetector Parker Solar Probe ISOIS Investigation spase://CNES/Observatory/CDPP-AMDA/PSP