Definition

1. Noun:
   • A vacuum tube containing a metal target onto which a beam of electrons is directed at high energy for the generation of X-rays: An "x-ray tube" is a specialized electronic device that produces X-rays. It works by accelerating electrons in a vacuum and then suddenly stopping them by colliding them with a metal target, which causes the emission of X-ray radiation.

Usage Examples

• Noun:
  • The technician replaced the faulty x-ray tube in the medical imaging machine.
  • The discovery of the x-ray tube revolutionized medical diagnostics.

Advanced Usage

• Technical Context: In physics and engineering, the term "x-ray tube" specifically refers to the core component responsible for X-ray generation in systems like radiography equipment, CT scanners, and security scanners.
  • The design of the modern rotating anode x-ray tube allows for higher power and longer life.

Variants and Related Words

• X-ray generator: A broader term for the apparatus that includes the x-ray tube and its associated power supplies and controls.
• Coolidge tube: A historical and specific type of x-ray tube with a hot cathode, named after its inventor, William Coolidge.

Synonyms

• Roentgen tube: A historical synonym, named after Wilhelm Röntgen, the discoverer of X-rays.

Related Phrases

• Tube current: The flow of electrons within the x-ray tube from the cathode to the anode.
• Anode target: The specific metal component (often tungsten) within the x-ray tube that the electrons strike to produce X-rays.

Noun

1. a vacuum tube containing a metal target onto which a beam of electrons is directed at high energy for the generation of X rays