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Volume 301 - 35th International Cosmic Ray Conference (ICRC2017) - Session Solar & Heliospheric. SH-Heliospheric transport and solar modulation
Capabilities and Performance of the High-Energy Energetic-Particles Instrument for the Parker Solar Probe Mission
M.E. Wiedenbeck,* N.G. Angold, B. Birdwell, J.A. Burnham, E.R. Christian, C.M.S. Cohen, W.R. Cook, A.C. Cummings, A.D. Davis, G. Dirks, D.H. Do, D.T. Everett, P.A. Goodwin, J.J. Hanley, L. Hernandez, B. Kecman, J. Klemic, A.W. Labrador, R.A. Leske, S. Lopez, J.T. Link, D.J. McComas, R.A. Mewaldt, H. Miyasaka, B.W. Nahory, J.S. Rankin, G. Riggans, B. Rodriguez, M.D. Rusert, S.A. Shuman, K.M. Simms, E.C. Stone, T.T. von Rosenvinge, S.E. Weidner, M.L. White
*corresponding author
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Pre-published on: 2017 October 23
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Abstract
NASA’s Parker Solar Probe (PSP) spacecraft (formerly Solar Probe Plus) is scheduled for launch in July 2018 with a planned heliocentric orbit that will carry it on a series of close passes by the Sun with perihelion distances that eventually will get below 10 solar radii. Among other in-situ and imaging sensors, the PSP payload includes the two-instrument “Integrated Science Investigation of the Sun” suite, which will make coordinated measurements of energetic ions and electrons. The high-energy instrument (EPI-Hi), operating in the MeV energy range, consists of three detector-telescopes using silicon solid-state sensors for measuring composition, energy spectra, angular distributions, and time structure in solar energetic particle events. The expected performance of this instrument has been studied using accelerator calibrations, radioactive-source tests, and simulations. We present the EPI-Hi measurement capabilities drawing on these calibration data and simulation results for illustrations.
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