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7. Specifications
– 14 –
7.2 Characteristics
(1) Required patient doses
Equivalent to exposure dose of 200 or 400 speed film/screen system.
(2) Sensitometric characteristics
(3) Presampled MTF
Image receptor air kerma(uGy)
0.01 0.1 1 10 100 1000
100000
10000
1000
100
10
1
RQA5(70kVp+21mmAl)
saturation
Output(LSB)
Spatial frequency(lp/mm)
012345
0
0.2
0.4
0.6
0.8
1
Presampling MTF