Enable/Disable Dose Calculation; Configuring Of Dose Calculation System - Siemens MAMMOMAT Novation DR Manual

Checking dose settings
9-

Enable/Disable Dose Calculation

8Checking dose settings
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
shift from mAs to dose within approximately 2 seconds.
Fig. 36: mAs_mGy_value
NOTE

Configuring of Dose Calculation System

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".
Siemens AG
Medical Solutions
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.
SPB7-250.815.06.02.02
12.05
((Fig. 36 / p. 55)); the value shown will
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