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Mission | Lucky-7 Satellite
http://lucky7satellite.org/mission
Gamma Ray Spectrometer equipped by the CsI-Tl scintillator with 5 cm^3 volume will measure in-situ spectra in the energy range of 0.3-3 MeV. It will be able to detect the Gamma Ray Bursts (GRB) when flying over quiet parts of the orbit with 1 Hz bins. It is not replacing expensive GRB laboratories, but it could be a nice complement.
Wide Energy Range Gamma Ray Radiometer / Dosimeter (0.3 - 10 MeV) with Alarm function will be able to provide us with the average in-situ doserate every minute.