The Standard Radiation Environment Monitor

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-1, Integral, Rosetta, GIOVE-B, Herschel, Planck. SREM is the successor of the Radiation Environment Monitor REM.

SREM was developed and manufactured by the former Oerlikon Contraves company in cooperation with Paul Scherrer Institute under a development contract of the European Space Agency.