Reach Us +44-1904-929220


Shielding protection of electronic circuits against radiation effects of space high energy particles

Space radiation environment in LEO circuits including high-energy protons and electrons and ions and secondary particles, effects on electronic devices in a spacecraft. The use of shield to reduce radiation and using software's to analyze the shield thickness and analysis of radiation-tolerant circuits is essential. In this study, by initial analysis of shield amount needed for satellites in LEO by Fluka, Geant4 software's and MCNP code, it was found out that reducing the dose on a piece of less than 10 Krad to reduce the flux of protons (DDD) , for Orbits below 1000km for almost no additional shielding is required. Shield thickness is usually expressed as aluminum thickness equivalent and only considering the effect of satellites shield (Al 1 ~ 2 gr / cm ²) is sufficient to reduce the dose (self shielding effect). High density shield materials (such as tungsten and tantalum) and low density materials (such as polyethylene) can be considered as an ideal shield. The simulations and calculations in the spherical case, the initial dose regardless of the extra protection was achieved with 75 Krad tried to use a different thickness of the shield, the dose reduced to 7.5 Krad.

Author(s): Omid Zeynali, Daryoush Masti and Saeed Gandomkar

Abstract | PDF

Share this  Facebook  Twitter  LinkedIn  Google+
30+ Million Readerbase
Recommended Conferences
Flyer image
Abstracted/Indexed in
  • Chemical Abstracts Service (CAS)
  • Index Copernicus
  • Google Scholar
  • Genamics JournalSeek
  • China National Knowledge Infrastructure (CNKI)
  • CiteFactor
  • Electronic Journals Library
  • Directory of Research Journal Indexing (DRJI)
  • WorldCat
  • Proquest Summons
  • Publons
  • Serials Union Catalogue (SUNCAT)
  • Geneva Foundation for Medical Education and Research
  • Secret Search Engine Labs