Konica Minolta CS-3 - AEC Performance Checks; Thickness Tracking

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4.2 MP-Tables
3.13 AEC Performance Checks
Table MP-10 (S value)
Date: Inspectors Name:
Mammography X-ray unit S/N:
Stability and Reproducibility
28 kVp
Exp Count
mAs mR
Exp #1
Exp #2
Exp #3
Exp #4
Mean
Standard Deviation(SD) Pass/Fail
Coeff of variation(%)
*1
Criteria
≤5% ≤5%
P Pass
*1 Coeff of variation(%)=(SD/mean)×100 F Fail
Thickness Tracking
Thickness
(cm)
kVp Target Filter mAs
Displayed
S value
S value
(relative to
4cm
PMMA)
2
4
6
S
av
S
max - min
S
variation
(%)
*2
Pass/Fail
Criteria
≤20%
*2 S Variation = [(Smax – Smin) / Smean]×100%
F Fail
Comments:
P Pass