Standard Radiation Environment Monitor (SREM)

Details

  • Mass : 2.64 kg
  • Power: < 2.2 W by wide power voltage bus from 20 to 55 Vdc
  • Dimensions: 95 mm × 122 mm × 217 mm (h×w×l)
  • Reliability: > 0.85 for 10 year mission
  • Radiation tolerant components (> 30 kRad)
  • direction sensitive particle spectroscopy for
    • electrons (e-) in the energy ranges of 0.3 to 6MeV
    • protons (p+) in the energy ranges 8 to 300 MeV
  • with fifteen detection levels
  • detection and counting of cosmic ray events
  • high count rate of typically > 100’000 events/sec.
  • 1 RadFet for SREM internal total dose measurements
  • up to 6 external RadFet’s for total dose measurements at exposed locations on spacecraft

SREM is a particle detector, developed for space applications. It measures high energy electrons and protons with a fair angular and spectral resolution and provides the host spacecraft with radiation information.  SREMs have been launched on several satellites: Strv-1c, Proba-1IntegralRosettaGIOVE-BHerschelPlanck, and additional missions are to follow. SREM is the successor of the Radiation Environment Monitor REM.

SREM was developed and manufactured by oerlikon space in cooperation with Paul Scherrer Institute under a development contract of the European Space Agency.

Data from the instrument is available from the SREM PSI site.