What is the effect of X-rays on dielectric solids?

[hagopbul]

TL;DR Summary

i was asking about the effect of xray on dielectric solid

Hello :

i some times use XRF device for various reasons , and start to wonder dose the xray radiation induce charges on the surface of dielectric material (solid ) , can some one mention a reference about that subject ?

( it knocks an electron from an atom creating a positive charge ) , how much time dose the charge stay at the surface of that dielectric ?

also i am thinking to do a paper on effect of xray on an electronic component just to pass some time (not sure about it yet) , if any one wants to co author it with me , i am thinking of writing it to improve my experience and in my free time , didn't decide on writing it yet



Best
H

 

[QuarkyMeson]

TL;DR Summary: i was asking about the effect of xray on dielectric solid

i some times use XRF device for various reasons , and start to wonder dose the xray radiation induce charges on the surface of dielectric material (solid ) , can some one mention a reference about that subject ?

In general you should be able to polarize a given dielectric when it is exposed to an external electric field. Griffiths chapter 4 goes into detail about dielectrics in external E-fields. This effect may or may not disappear when the field is removed depending on the material and change the surface charge on the object.

Because the source is x-rays, you probably wouldn't notice polarazation since the field generated by the E&M radiation is oscillating very fast and probably randomly distributed, (I suppose, I have no experince with XRF, at least you'd need to be purposefully looking for it) so the other effect would be photoelectric effect where you're actually creating free charge by ionizing the dielectric. I haven't studied this yet so someone else can talk more about that.

( it knocks an electron from an atom creating a positive charge ) , how much time dose the charge stay at the surface of that dielectric ?

This would be the photoelectric effect I mentioned. The time you have charge on the surface depends on a whole host of enviromental and material factors.