CONTROLLING SCATTER RADIATION
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | CONTRAST: SCATTER DECREASES IN CONTRAST
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| HOW DOES SCATTER AFFECT DENSITY | show 🗑
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| HOW DO CHANGES IN kVp and tissure thickness affect scatter and contrast | show 🗑
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| show | DECREASING FIELD SIZE REDUCES SCATTER AND INCREASING CONTRAST
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| show | SHOULD BE USED WHEN THE BODY PART EXCEEDS 10-12cm THICK OR WHERE THE AMOUNT OF SCATTER WILL INTERFERE WITH THE IMAGE. CHEST-SPINE-PELVIS-ABDOMEN AND LARGE EXTREMITIES
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| show | The higher the grid ratio the more scatter radiation absorbs and the higher the contrast-LIKEWISE- A low grid ratio absorbs less scatter and produces images with lower contrast
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| show | They allow the passage of remnant radiation that is alligned with the lead strips, while absorbing the scatter traveling on an angle
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| show | When the primary beam is off center to the gird or the grid is tilted. Also if the wrong SID is used or if the beam is angled against the lead strips
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