NORM – Space Radiation Monitor

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Product Description

Mission

NORM is the Norwegian Radiation Monitor for measuring energetic charged particle radiation in space. Understanding space radiation is required for reliable operation of satellites, and all human activities in space. Monitoring of “Space Weather” as the interaction of solar particles with earths magnetic field and radiation belts is called is important for life on earth as well. Solar storms affect radio transmissions and can damage our electrical grid and electronics even on the earths surface.

NORM’s first use will be in the Arctic Satellite Broadband Mission (ASBM), a pair of broadband communication satellites providing coverage over the arctic, owned and operated by Space Norway. The satellites will fly in a highly elliptical three point apogee orbit (HEO-TAP), touching different domains in radiation environment. This provides a unique opportunity to validate existing and new radiation environment models. The data produced will also benefit the development of the second generation of Galileo navigation satellites currently being developed by the European Union.

Acknowledgement

We would like to thank the Norwegian Defence Research Establishment (FFI) for their help with the mechanical structure and environmental analyses.

NORM was developed under ESA Contract (4000128542/19/NL/AS) with the support of the Norwegian Space Agency and Space Norway HEOSAT AS.

The Instrument

NORM is designed as an easily adaptable space radiation monitor for satellite missions in GEO, LEO, and HEO. Various features such as communication interface, power supply and radiation hardness can be tailored to better fit the needs of the hosting satellite.

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Product Features

Application Measuring kinetic energy for energetic charged particle radiation in space
Power consumption 3W
Dimensions Sensor unit (DGU): 148,5 x 76 x 68 mm Processing unit (DHU): 140 x 140 x 65 mm
Energy range Electrons: 0.5 - 7 MeV, 9 log bins Protons: 7 - 200 MeV, 9 log bins
Detector technology Particle telescope: stack of 9 Si diodes and Al/Ta absorbers
Data interfaces MIL-STD-1553B, CAN-Bus, SpaceWire
Radiation hardness 100krad TID, 60MeV cm^2/mg SEL
In orbit lifetime Up to 15 years
Input voltage range 18V – 37V