Equipment Setup; Reproducibility - CPI Indico 100 Series Service And Installation Manual

CPI Canada Inc
2.0

EQUIPMENT SETUP

1. Place the radiation probe above the table approximately 25 cm (10"). Select an SID of
approximately 100 cm (40").
2. Place a lead diaphragm over the detector and adjust its height so that the X-ray beam covers the
detector but does not over radiate the sides of the 'R' probe. Refer to figure 1.
3.0

REPRODUCIBILITY

Calculate reproducibility as follows:
1. Using kV and mA/ms or mAs values per tables 1 to 4, make a series of 5 exposures.
2. Record each of the measured mR values in the appropriate table. Refer to step 3 before
beginning step 2.
3. Record the preselected mAs for each series of exposures in the header of each table. For 3 point
generators, this is the calculated mAs value where mAs = mA X time in seconds (example for 160
mA and 125 ms, mAs = 160 X 0.125 = 20 mAs).
X-Ray Generator Service Manual Supplement
Figure 1: mR measurement setup
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Reproducibility, Linearity, & HVL Testing
Rev. A Page 3