Entrance Dose Rate - Siemens ARCADIS Avantic Maintenance Instruction

Function tests

3 Entrance dose rate

The legal maximum entrance dose rate is 87 mGy/min (10 R/min).
For safety reasons, the value has been fixed at < 78 mGy/min (9 R/min) at the factory.
The entrance dose rate imust be checked by means of a dose rate meter.
In the measurement setup shown, the maximum adjustable value of 125 kV yields an
input dose rate of approx. 87mGy/min (10 R/min).
Measurement set-up
100 cm
Fig. 1
Position the measurement detector of the dosimeter as shown in the diagram.
Press the "
Select 125 kV. Select full I.I. format, open the collimator to max. aperture, switch fluoros-
copy "ON". Measure the dose and record.
Siemens AG
Medical Solutions
Image intensifier
2,1
cm
30 cm
" button at the operating console.
Input screen
Ionization
chamber
Focal spot
SPR2-330.662.01
Rev. 02 05.06
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