What effect does beam restriction have on the production of scattered radiation (p. 262)?
There is a smaller area being radiated therefore there is less scatter radiation
When an X-ray beam passes through any material, it tends to scatter in different directions. The amount of scatter radiation produced changes when beam restriction is applied. Beam restriction, also known as collimation, occurs when the X-ray beam is restricted to a smaller size or focused onto a specific part of the patient’s body using lead or other material.
The use of beam restriction reduces the amount of scattered radiation produced. When the X-ray beam is narrowed, the number of photons in the beam decreases. This, in turn, reduces the collisions between photons and atoms in the body tissues, causing fewer scattered photons to be produced.
Therefore, with a lower number of photons and fewer collisions resulting from beam restriction, the production of scattered radiation is reduced. The reduction of scattered radiation ultimately benefits both the patient and workers near the equipment, as it decreases their potential radiation exposure.
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