kVp Accuracy and Reproducibility
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kVp Accuracy and Reproducibility
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kVp Accuracy and Reproducibility. Equipment. Procedure 1 Set meter at about 30" from focus or as prescribed by manufacturer. 2. Set 400 mA and 200 ms on the console 3. Measure kVp from 60-120 kVp ( eg . 60, 70, 80, 100, 120) 4. Calculate error between set and measured value. - PowerPoint PPT Presentation
Transcript of kVp Accuracy and Reproducibility
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kVp Accuracy and Reproducibility
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Equipment
kVp meter
Procedure 1
1.Set meter at about 30" from focus or as prescribed by manufacturer.
2. Set 400 mA and 200 ms on the console
3. Measure kVp from 60-120 kVp (eg. 60, 70, 80, 100, 120)
4. Calculate error between set and measured value
Procedure 2
1.Set meter at about 30 “ from focus or as prescribed by manufacturer.
2. Set 400mA and 200ms on the console.
3. Set a fix 70 KVp on the console.
4. Perform five exposures
5. Calculate reproducibility variance
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SID 30”Table Top Technique
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Central Ray
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How to use the kVp meter video
http://www.youtube.com/watch?v=g4n3akjyITM
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