Equivalent Displacement Damage Dose for On-Orbit Space Applications

The calculation of the displacement damage dose (DDD) in a material is not often as straightforward as simply combining the particle fluence and the nonionizing energy loss (NIEL) but often requires a consideration of the degradation parametrics of a particular microelectronic device. This paper defines an Equivalent Displacement Damage Dose (EDDD) which is more representative of the degradation of the device. Displacement damage radiation effects in solar cells will be used to illustrate the model.