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Concepts Of Physics MCQ Edition [Volume 2]PhysicsX-rays

Consider a continuous X-ray photon emitted from a Coolidge tube. The energy of this photon is derived from

Options

  1. Athe kinetic energy of the free electrons in the target
  2. Bthe kinetic energy of the striking electron
  3. Can atomic transition within the target
  4. Dthe kinetic energy of the ions in the target

Correct answer

B. the kinetic energy of the striking electron

Step-by-step solution

Continuous X-rays are produced due to the deceleration of high-speed electrons when they strike the target material in a Coolidge tube. The loss in the kinetic energy of these striking electrons is emitted as continuous X-ray photons, also known as Bremsstrahlung radiation. Characteristic X-rays, on the other hand, are produced due to atomic transitions within the target atoms. Thus, the energy of a continuous X-ray photon is derived from the kinetic energy of the striking electron.

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