Raycast UI Elements

Hello Everybody,

I have a game were the Player should be able to shoot in UIButtons and if he hits them, they should explode. However I cannot find a way to Raycast these Buttons, since all of the GraphicRaycasting I have found so far, uses the inout from the Mouse or Stuff like that. But I really would like to find those Buttons by a ray.

I there any Way?

Thanks in Ahead!