3,1,- 1NASA Goddard Space Flight Center, Heliospheric Physics, Code 672, Greenbelt, United States of America (shrikanth.g.kanekal@nasa.gov)
- 2George MAson University, USA, Fairfax, Va, USA
- 3Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, USA
We use the REPT (relativistic Electron Proton Telescope) data onboard the Van Allen Probes mission to examine the penetration of solar energeetic Helium into the magnetosphere. Specidfically we the pulse height analyzed data (PHA) in the REPT solid state detector stack for each individual particle measured. we identify SEP-He is by using active periods with identified SEP events. We will specifically focus on the large SEP events that occurede during the September of 2017. Using PHA data we derive the incident spectrum nd its evolution during the event. From a space weather perspective It is important note that He ions deposit energy through rapid ionization resulting in single event upsets (SEU) whereas protons do that via nuclear interactions.
How to cite: Kanekal, S., Gautier, F., Baker, D., Greeley, A., and Schiller, Q.: Solar energetic He transport into the Van Allen radiation belts during intense SEP event of September 2017., EGU General Assembly 2026, Vienna, Austria, 3–8 May 2026, EGU26-11480, https://doi.org/10.5194/egusphere-egu26-11480, 2026.
