Lecture 2 ~~ Notes

X-rays produced when electrons hit the anode at high voltage, emitting specific energy photons tied to tungsten atom energy levels.

Kilovoltage Peak, controlling the energy of X-ray photons.

Milliampere-Seconds, controlling the quantity of X-rays.

Reducing the size and shape of the X-ray beam to only the area of needed examination, lowering the patient exposure.

Distance from the x-ray source to the patient's skin, directly affecting beam divergence.

A device used to adjust the divergence of the x-ray beam.

A filter that removes low energy X-Rays to increase the image quality and reduce patient exposure.

Need at least 70kVp or higher for X-ray tube to generate characteristic X-rays.

The glass x-ray tube, step-up transformer, surrounding oil, spacer cone, cathode, and anode work together to produce x-rays.

Increases the voltage from 240V to accelerate electrons to generate x-rays, typically to 60-70 kV.

The negative electrode in an x-ray tube, where electrons are emitted from a tungsten filament.

The positive electrode in an x-ray tube, where electrons hit to produce x-rays; tungsten embedded in copper.

X-rays produced when high-speed electrons are deflected by the nucleus, losing energy and emitting photons.

X-rays produced when high-speed electrons knock inner-shell electrons out of tungsten atoms, creating vacancies and causing outer electrons to transition and release energy in the form of x-rays.

X-rays are created when high-speed electrons interact with the atoms in the target, either through the Bremsstrahlung or Characteristic processes.

Range of X-ray energies produced by Bremsstrahlung interaction, ranging from 0 to the initial kinetic energy of the electrons.