Exposure Factor Calculations
- Created by: Freddie900
- Created on: 13-12-22 13:45
View mindmap
- Exposure Factor Calculations
- FFD
- Film Focal Distance
- New mAs
- Old mAs X New FFD2 %by Old FFD2
- mAs
- Milliampere Seconds
- Current flowing through XRAYS
- S= mAs % mA
- mAs= mA X s
- mA= mAs % s
- Grid Factor
- Amount of radiation that hits the grid in relation to the amount that passes through and into tissues
- NO grid = 1 5:1= 2 6:1=3 8:1= 4 16:1=6
- New mAs= Old mAs X grid factor
- KV
- Every 10 KV increase mAs can be divided by 2
- Every 10 KV reduced the mAs can be doubled
- KILO VOLTAGE
- Wet plaster of paris
- mAs X 4
- Dry plaster of paris
- mAs X 2
- FFD
Comments
No comments have yet been made