Geant4 Simulations of ECP-Lite Microdosimeter Response to Electrons and Protons
Abstract
The ECP-Lite compact sensor package includes six microdosimeters, as well as a Faraday cup plasma analyzer and a surface-charging monitor. We have used the Geant4 open-source Monte Carlo radiation-transport toolkit to model the response of the microdosimeters to electrons and protons, which will dominate the radiation environment that they will measure in space. The ECP-Lite housing is made of aluminum walls at least 300 mils thick, except where the sensors view space through windows providing reduced shielding; this was found to be very effective in rejecting dose from penetrating particles, so that the microdosimeters will mainly respond to particles entering their apertures through the well-characterized shielding under which they are placed, rather than to particles penetrating varying amounts of shielding to the sides or the rear of the instrument.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 26, 2020
- Accession Number
- AD1137204
Entities
People
- Mark D. Looper
Organizations
- The Aerospace Corporation