If you’re old enough to remember Cathode Ray Tube (CRT ... Closeup of a Trinitron tube shows unbroken vertical stripes which led to a brighter picture. All color TV’s shoot three electron ...

An x-ray tube is a simple device; a cathode emits electrons that strike a tungsten anode that emits x-rays. Most x-ray tubes, though, are relatively large with low-power mammography tubes being a ...