XRAY PRODUCTION

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X-RAY PRODUCTION
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Purpose of x-ray tube

• Take electrons created at the filament,
  accelerate them and them focus a large number of
  electrons on a small target (anode) with high
  velocity.

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HEAT PRODUCTION

• Over 99 of the kinetic energy required to
  produce x-rays is converted to heat
• Only 1 of the kinetic energy is converted to
  x-rays

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ELECTRON TARGET INTERACTIONS

• Characteristic Radiation
• Projectile electrons interact with an inner-shell
  electron of the target rather than the outer
  shell electron
• Bremsstrahlung Radiation
• Projectile electrons looses its kinetic energy
  when passing close to the nucleus and its path is
  diverted or the initial path travel is slowed
  down.

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• When projectile electrons interact with target
  electrons, the kinetic energy of the electrons
  are transformed into thermal energy (heat) and
  electromagnetic energy (x-rays)

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X-ray Emission Spectrum

• A graph of the x-ray energy in an x-ray beam
• Pg 147

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Factors affecting emission spectrum

• mA
• kVp
• Added filtration
• Target material
• Voltage Waveform

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The End