Recombination happens at what rate ?
in metals the initial ( " stage I " ) close Frenkelpair recombination and interstitial migration starts to happen alreadyaround 10-20 K. Similarly , in Si major recombination of damage happens alreadyaround 100 K during ion irradiation and 4 K during electron irradiationEven the stage A threshold displacement energy can be expectedto have a temperature dependence , due to effects such as thermalexpansion , temperature dependence of the elastic constants and increasedprobability of recombination before the lattice has cooled down back to theambient temperature T0 .