Dear All, I am intending to examine a structure evolution by certain elastic scattering, such as ion bombs, high spread electrons. Therefore, I need to add some kinetic energies for some ions after some times . I checked the INPUT_CP and found it may meet my intent, and i would like to make clear for some points I donot understand well. Could you please give me some hints or suggestions on this issue ?
1, I think I can simulate the scattering process through changing ions' velocities. The card for velocities : ion_velocities has several options such as "default", "change step", "random", "from_input" and "zero". If I just want to change some ions' states and keep others, which option should I choose ? My first guess is "from_input". It seems that i can get the finnal values of ions for previous simulation , then change these values and specify in the ATOMIC_VELOCITIES. Is it OK for me to simulate this scattering process ? Do I lose some points ? 2, About electron_velocities. For elastic scattering on ions, should i consider the change of electron_velocities ? I am not very clear about this tag, would you please explain which physical process this tag account for ? Regards -- Hai-Ping Lan Department of Electronics , Peking University , Bejing, 100871 lanhaiping at gmail.com, hplan at pku.edu.cn -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.democritos.it/pipermail/pw_forum/attachments/20090307/a8b2916a/attachment.htm
