Beam restriction is used to decrease the image field size and the amount of tissue irradiated.
It is used as a radiation protection device by limiting the patient exposure.
-By "collimating" patient dose decreases, scatter decreases, contrast increases, and density decreases.
Fauber, T. L. (2017). Radiographic imaging & exposure. St. Louis, MO: Elsevier.
It is used as a radiation protection device by limiting the patient exposure.
-By "collimating" patient dose decreases, scatter decreases, contrast increases, and density decreases.
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