A contemporary dental X-ray tube. The heated cathode is on the left. Centre may be the anode which is created from tungsten and embedded from the copper sleeve.William Coolidge clarifies professional medical imaging and X-rays. An X-ray tube is really a vacuum tube that converts electrical input power into X-rays.[1] https://edgetech-industries-eti09765.snack-blog.com/28246729/a-review-of-tungsten-tubes