Hi, I've been trying to understand a simulation for a collision cascade. The PhD that produced this code says that he is modelling a 10keV collision in Fe. From this he says that his PKA velocity is 2620.579 ang/ps or 262057.9 m/s and I'm wondering how did he get this? I've assumed that the collision would transfer a maximum energy and I've assumed that it is an Fe-Fe collision since I don't know any other way of getting close to his value if I tried a Fe-n collision. So if anyone could help me figure this out please that would be really useful.