An x-ray machine works the following way: 1) An emitter that emits an x-ray burst. 2) X-rays pass through less dense objects (skin, muscle) and is blocked by more dense objects ( bone, tumors). 3)...
X-rays are basically the same thing as visible light rays. Both are wavelike forms of electromagnetic energy carried by particles called photons (see How Light Works for details). The difference...
Radiological technicians (x-ray technicians) work in hospitals, private practices, and sometimes in mobile platforms (truck or van). Anyplace that has imaging equipment.