Konica Minolta CS-3 - Background Density Change* +;-0.20; Density Difference Change* +;-0.05; Phantom Image Quality; Thickness Displayed

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3.19 Phantom Image Quality (Medical Physicist)
3.19 Phantom Image Quality
Table MP-16
Phantom Type & S/N:
Cassette Bar Code #:
If AEC used:
AEC cells position:
All three cells recommended
Density setting:
Mode:
18×24 cm, 24×30 cm
Criteria Previous Current Pass/Fail Comments
Date
kVp setting
mAs gnittes
S value
S value Change +/-20%
Background density
Background density change*
+/-0.20
Density outside disk
Density inside disk
Density diff = outside - inside
Density difference change*
+/-0.05
Number of fibers seen
Fibers seen after deduction
Fibers change*
<0.5
Number of speck groups seen
Speck groups after deduction
Speck group change*
<0.5
Number of masses seen
Masses seen after deduction
Mass change*
<0.5
Thickness Displayed
+/-0.5cm
P Pass
F Fail
* If applicable
Pass/Fail P Pass
Criteria; 4 Fibers 3 Specks 3 Masses F Fail