Checking The Accuracy Of The Area Dose Product Measurement Device; Prerequisites; Preparations; Dose Measurement - Siemens SIREMOBIL Compact Service Instructions Manual

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Checking the accuracy of the area dose product measurement
device
WARNING

Prerequisites

The calibration of the area dose product measurement device has already been per-
formed.

Preparations

•
Attach and center the center cross on the I.I. (Fig. 4).
•
Select survey format.
•
Select KV mA curve plateau HC1.
•
Release fluoroscopy briefly, adjusting the iris on the radiation field to a format of approx.
15 cm.
NOTE
•
Do not make any further adjustments to the iris.
•
Record the average diameter (Fig. 7) of the octagonal area of the radiation field.
•
Remove the center cross.
•
Attach and center the small (1cm
measurement device onto the image intensifier (Fig. 5).
•
Select kV STOP and enter 70 kV.

Dose measurement

•
Press the >0< key twice to reset the area dose product on the Siremobil monitor to 0.
•
Reset the dose measurement device to 0.
•
Release fluoroscopy for approx. 5 seconds. The measured dose K
enough that the uppermost measurement range of the dose measurement device (Dali,
Nomex...) is utilized fully. If necessary, reset the area dose product display on the
Siremobil and the dose measurement device and repeat the measurement with a
different fluoroscopic time.
•
Record the measured dose.
•
Record the area dose product displayed on the Siremobil monitor (FDPa).
SIREMOBIL Compact
System Manual
X-ray radiation!
See Chapter 1, Safety Information.
Protect yourself against radiation exposure. Wear a lead apron.
The radiation field must cover the entire area of the dose mea-
surement chamber.
3
) dose measurement chamber of the dose
Register 5 RXR2-130.061.02
Rev. 03
Adjustments / Programs
Page 16 of 22
10.03 CS PS 24
5
5
5
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should be high
E
Siemens AG
Medical Engineering