How are x-rays produced?

Answer 1

X-ray production whenever electrons of high energy strike a heavy metal target, like tungsten or copper. When electrons hit this material, some of the electrons will approach the nucleus of the metal atoms where they are deflected because of there opposite charges. This deflection causes the energy of the electron to decrease, and this decrease in energy then results in forming an x-ray.

Answer 2

That's easy. Trivia about the origin of the invention of x-rays, history of how inventor Wilhelm Konrad von Roentgen accidently discovered them. It got noticed because we use it for many purposes.
An x-ray tube produces x-ray's by having an electrical current flow from one end, the cathode to the other, the anode, in a vacuum space. The electrons hitting the anode, made of tungsten, create the x-ray's. The physics of the creation of the x-rays are complex, called x-ray fluorescence and Bremsstrahlung.