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Most used charts showing key space radiation insights

  • Writer: Matthew Gill
    Matthew Gill
  • Apr 16, 2024
  • 1 min read

There are several charts and figures that have been put together to give key space radiation insights as well as answer common question, myths, and miss-conceptions. It doesn't cover all topics, just the ones that can be explained conveniently with charts :)


Over several weeks I shared these on LinkedIn and here they are, all in one place. Hopefully they are useful to a few people :)


They try to simply explain the following topics:


  • Even high reliability satellites will fail - Nobody is perfect

  • Radiation is a common cause of failures, even in high reliability satellites

  • Commercial Off The Shelf (COTS) electronics tend to struggle at Total Ionizing Doses (TID) over 25 kRad

  • Shielding has limitations on how much it can mitigate TID in sever orbits such as high LEO or MEO

  • High LEO (>1000 km) can be a worse environment then GEO for Single Event Effects (SEE)

  • Shielding can't stop destructive SEEs

  • Inclination has a big impact on SEE rates

  • De-rating power devices can mitigate destructive SEEs

  • Proton SEE testing has gaps



Please keep in mind that these aim to be very quick aids to help people understand key issues, and dispel some of the myths I keep hearing. They don’t encompass all of the nuance and corner cases associated with ensuring your hardware survives in space.




 
 
 

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