Prediction for Single Event Upset Rate in Space Orbits Based on ²⁵²Cf Experimental Results

Feasibility of prediction for single event upset rate based on ²⁵²Cf experimental results in space orbits was analyzed. Taking static random access memory as an example, its single event upset (SEU) rates in geostationary orbit were predicted under three circumstances based on its ²⁵²Cf SEU cross sections. The result shows that SEU rate in geostationary orbit should be smaller than 10^-8d^-1•bit^-1, if ²⁵²Cf SEU cross section is smaller than 10^-10cm²/bit.