Share Email Print
cover

Proceedings Paper

The coronal suprathermal particle explorer (C-SPEX)
Author(s): J. Daniel Moses; Charles Brown; George Doschek; Yuan-Kuen Ko; Clarence Korendyke; J. Martin Laming; Dennis Socker; Allen Tylka; Donald McMullin; Chee Ng; Steven Wassom; Martin Lee; Frédéric Auchère; Silvano Fineschi; Tim Carter
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The primary science objective of the Coronal Suprathermal Particle Explorer (C-SPEX) is to investigate the spatial and temporal variations of coronal suprathermal particle populations that are seeds for acceleration to solar energetic particles (SEPs). It is understood that such seed particle populations vary with coronal structures and can change responding to solar flare and coronal mass ejection (CME) events. Models have shown that higher densities of suprathermal protons can result in higher rates of acceleration to high energies. Understanding the variations in the suprathermal seed particle population is thus crucial for understanding the variations in SEPs. However, direct measurements are still lacking. C-SPEX will measure the variation in the suprathermal protons across various coronal magnetic structures, before/after the passage of CME shocks, in the post-CME current sheets, and before/after major solar flares. Understanding the causes for variation in the suprathermal seed particle population and its effect on the variation in SEPs will also help build the predictive capability of SEPs that reach Earth. The CSPEX measurements will be obtained from instrumentation on the International Space Station (ISS) employing well-established UV coronal spectroscopy techniques.

Paper Details

Date Published: 6 October 2011
PDF: 8 pages
Proc. SPIE 8148, Solar Physics and Space Weather Instrumentation IV, 81480J (6 October 2011); doi: 10.1117/12.896868
Show Author Affiliations
J. Daniel Moses, U.S. Naval Research Lab. (United States)
Charles Brown, U.S. Naval Research Lab. (United States)
George Doschek, U.S. Naval Research Lab. (United States)
Yuan-Kuen Ko, U.S. Naval Research Lab. (United States)
Clarence Korendyke, U.S. Naval Research Lab. (United States)
J. Martin Laming, U.S. Naval Research Lab. (United States)
Dennis Socker, U.S. Naval Research Lab. (United States)
Allen Tylka, U.S. Naval Research Lab. (United States)
Donald McMullin, Space Systems Research Corp. (United States)
Chee Ng, George Mason Univ. (United States)
Steven Wassom, Utah State Univ. (United States)
Martin Lee, The Univ. of New Hampshire (United States)
Frédéric Auchère, Institut d'Astrophysique Spatiale (France)
Silvano Fineschi, INAF - Osservatorio Astronomico di Torino (Italy)
Tim Carter, Praxis Inc (United States)


Published in SPIE Proceedings Vol. 8148:
Solar Physics and Space Weather Instrumentation IV
Silvano Fineschi; Judy Fennelly, Editor(s)

© SPIE. Terms of Use
Back to Top