Radiation Hardness Assurance

Total Ionizing Dose (TID) and Total Non Ionizing Dose(TNID) Radiation Hardness Assurance (RHA) for Space Systems – from Big Systems to Smallsats

Christian Poivey


Basics of TID and TNID RHA for Space Systems, will be introduced including a discussion of Radiation Design Margin (RDM) requirements. Systematic errors and uncertainties on the different inputs used to define TID and TNID RDM will be reviewed: mission radiation environment models, radiation levels within the spacecraft, electrical, electronic, and electromechanical (EEE) parts radiation sensitivity, and circuit design. Finally, the challenges of adapting current TID and TNID RHA methodologies to small satellites will be presented, including the use of Commercial-Off-The-Shelf (COTS) parts and performing radiation testing at the board level. Application examples will be also presented.