Siemens MAMMOMAT Novation DR - Page 61

Siemens AG SPB7-250.815.06.02.02 MAMMOMAT Novation DR
12.05 CS SD 24
Checking dose settings 61
Page 61 of 116
Medical Solutions
P 5. Record the measured values in the "Start-up Protocol" on (Start-up Protocol / p. 97).
Adjust the H and D Settings
To adjust the
enter the new values, separated by a comma, e.g. 100,80,60. The values represent the
factor in % for (Mo/Mo, Mo/Rh, W/Rh).
Three settings, e.g. try (short-term, is valid for one measurement only), save (long-term,
valid also after reboot) and load (effective, valid until the system is rebooted) can be used
in the drop-down menu above the values.
To change the values permanently, enter the correct values and select save, then use
load to load them before you start another exposure.
--> Calculation of the new Mo/Mo dose scaling value:
--> Calculation of the new Mo/Rh, W/Rh dose scaling values:
--> Proceed as follows:
1. Call up the service software and select:
Acquisition System -> BRICK Configuration
The BRICK service software opens another window.
2. Select Brick -> AEC Configuration.
3. The BRICK software switches to a higher user level, thus a Username and Password
have to be entered.
User name: root
Password: ******
H value, go to Modify low dose scaling (80, 70, 45) and
D value, go to Modify high dose scaling (100, 80, 60) and
NewScalingValue = OldScalingValue * DoseValue
Nominal
/ DoseValue
Measured
DoseValue
Nominal
for H = 130 µGy
DoseValue
Nominal
for D = 190 µGy
NewScalingValue = OldScalingValue * PixelValue
Mo/Mo
/ PixelValue
Measured