Is masturbating a solution to remove dead sperms inside the testes that i think is exposed to xray? how many times? i want to have a normal baby.

Not necessary : You masturbate all you want but that is not needed after an x-ray. There is no medical reason to do this but feel free to masturbate as many times as you like.

Best swimmers win: Men continuously manufacture millions of sperm from stem cells.Any that might show the effect of any toxic event: x-ray , drinking or exposure to drugs, would not be the healthiest swimmer in the bunch. Clean your pipes if you wish, but the process is unnecessary.