Monitoring lunar radiation environment: RADOM instrument on Chandrayaan-1

This paper describes the RADOM instrument on Chandrayaan-1 spacecraft to monitor the radiation environment en-route to Moon and in lunar orbit. The instrument is a miniature (98 g; 100 mW) 256 channels spectrometer for the measurement of energy deposited (dose) due to incident primary and secondary energetic particles using a single 0.3 mm thick 2 cm 2 silicon detector. The science objectives, instrument details and operation sequence as well as the data analysis procedure and instrument calibration results are presented.

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