Where Do X-rays Come From?

An x-ray machine, like that used in a doctor's or a dentist's office, is really very simple, but inside the machine is an x-ray tube, then X-rays come from that.

An electron gun inside the tube shoots high energy electrons at a target made of heavy atoms, such as tungsten material. X-rays come out because of atomic processes induced by the energetic electrons shot at the target. Tungsten material is a suitable choice for radiation protection, for more details, you could click X-rays protection.