Passage: Beam Hardening: X-ray radiation consists of hard and soft particles, i.e. particles with a lot of energy and particles with little energy. Unnecessary exposure is mostly caused by soft particles, as they are too weak to pass through the body and interact with it. Hard particles, by contrast, pass through the patient. A filter in front of the x-ray tube can catch the soft particles, thus hardening the beam. This dose decreases without impacting image quality.Frame rate: High frame rates (i.e. images acquired per second) are needed to visualize fast motion without stroboscopic effects. However, the higher the frame rate, the higher the radiation. Kwa hiyo, dozi inapaswa kuchaguliwa kulingana na mahitaji ya kliniki na kuwa kama inawezekana. Kwa mfano, katika pediatric collimator, kwa kulinganisha, kupita kwa mgonjwa.
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