Production of X-rays

Chapter 9 Production of X-rays





KEY POINTS























TARGET INTERACTIONS


When the high-speed projectile electrons collide with the X-ray tube target they interact with the orbital electrons or the nuclear field of the target atoms. Kinetic energy transferred from the projectile electrons to the target atoms converts into heat or X-rays. When projectile electrons strike outer target shell electrons it puts them in an excited state and as a result, infrared (heat) radiation is emitted. Approximately 99% of the energy of projectile electrons converts into heat. Only about 1% of the energy converts into X-ray photons. Two types of interaction produce X-ray photons: bremsstrahlung interactions and characteristic interactions.



Feb 20, 2016 | Posted by in GENERAL RADIOLOGY | Comments Off on Production of X-rays
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