Reproducibility, Linearity, & HVL Testing
CPI Canada Inc
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Page 10
Rev. C X-Ray Generator Service Manual Supplement 740917-00
5.0
H.V.L. EVALUATION (Cont)
ADDED ALUMINUM FILTER
DOSE (mGy) RELATIVE
TRANSMISSION
0
0
0
0 (Average of three readings)
1.00
2
(total 2 mm)
1
(total 3 mm)
3
(total 6 mm)
Table 10: HVL dose values 80 kVp
Figure 1: HVL plot 80 kVp
For 80 kVp, the HVL must be
≥
2.9 mm Al.