Siemens AG SPB7-250.815.06.02.02 MAMMOMAT Novation DR
12.05 CS SD 24
Checking dose settings 55
Page 55 of 116
Medical Solutions
9-
8Checking dose settings
Enable/Disable Dose Calculation 0
If desired, the Dose Calculation System can be enabled/disabled. The Dose Calculation
System is enabled by default.
This is done by starting the Dose Calculation Program in the service PC.
From the Main menu in the Service program choose:
Configuration ⇒ Dose Calculation ⇒ Enable/Disable Dose Calculation.
To show the calculated dose values on the control console, enable this option (ON).
The dose will be shown in the mAs/mGy display ((Fig. 36 / p. 55)); the value shown will
shift from mAs to dose within approximately 2 seconds.
Fig. 36: mAs_mGy_value
NOTE
Selecting "OFF" will only prevent dose values from showing in the
mAs/mGy display. Dose calculations will still be performed and
can be printed out if the printer option is installed.
Configuring of Dose Calculation System 0
The Dose Calculation System comes with factory default values. The factory default val-
ues should typically be used. If desired, measurements of HVL (Half Value Layer) and
dose exchange factors can be performed to improve the accuracy of displayed dose val-
ues. These measurements should be performed by the hospital’s medical physicist and
are described in the document "QC Manual, SPB7-250.623.xx..., Test Beam Quality".
The measuring procedure is quite complicated and should only be performed by a physi-
cist familiar with similar measurements. If the HVL and dose exchange values are to be
measured, the document "Software, SPB7-250.816.03..." describes how to enter the val-
ues in the Dose Calculation Program.
If reinstalling factory default parameters, all previously entered measured data (HVL val-
ues and dose exchange factors) will be lost. However, the measured data should already
be noted in the document "QC Manual".
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