OK , I already know:
Fast electrons collide with metal atoms ,creates x-rays .
But the questions is how those collisions create X rays. What I think (don't know if it right ! So I need help ) :
Electrons carry high energy ( due to high speed ) after collisions :Those energy transform into 2 part
- first main part is heat : most of energy from electron transports to metal atoms make those atoms move faster and produce heat.
Second part is photon ( x-rays ) : there some electron collide with metal atoms but some don't collide at all . It loses its speed due to electrostatic attraction between atoms and electron , and since they haven't collide those energy cant transports to metal atoms => According to conserve law those speed or energy lost in elec have to go somewhere and that is photon right ?
If what I think is correct then :
what if A ship (space ship ) in space with high speed , get pulled by gravity of a planet . It's does not collide , just lose of some it's speed then those energy lost will turn into to photons ray?