An evaluation of lead foil in dental X-ray film packets. 1. Factors affecting the intensity of back-scattered radiation and the effect of this radiation on radiographic contrast when density is allowed to increaseC Price. Br Dent J. 1972. Show
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Contrast is the difference in density or the degree of grayness between areas of the radiographic image.7 The radiographic contrast depends on the following three factors:
What are the factors that contributes to scatter radiation?Three primary factors influence the relative intensity of scatter radiation that reaches the image receptor: kVp, field size, and patient thickness. As x-ray energy is increased, the absolute number of Compton interactions decreases, but the number of photoelectric interactions decreases much more rapidly.
What is the main reason of an increased scattered radiation in the radiograph?Scatter radiation, as described in Chapter 3, is primarily the result of the Compton interaction, in which the incoming x-ray photon loses energy and changes direction. Two major factors affect the amount and energy of scatter radiation exiting the patient: kilovoltage peak (kVp) and the volume of tissue irradiated.
What is scatter radiation caused by quizlet?Scatter radiation. Primarily a product of Compton interaction. Kilovoltage. Kilovoltage has a direct relationship to scatter radiation production. As X-ray energy increases, the number of photons that undergo Compton interaction also increases.
What are the effects of scattered radiation on a radiographic image?Scattered radiation reduces the level of contrast of a hidden X ray image, introduces additional quantum noise, and decreases image sharpness and increases background heterogeneity.
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