SIREMOBIL Compact
Register 5
RXR2-130.061.02
Page 8 of 22
Siemens AG
System Manual
Rev. 03
10.03
CS PS 24
Medical Engineering
5 - 8
Adjustments / Programs
Measurement
5
•
Switch on fluoroscopy.
•
Read and record the value displayed on the dose rate meter.
•
If the value measured exceeds 9R/min, the maximum tube current must be reduced. If
the value measured is less than 9R/min, the tube current does not need to be reduced.
•
Switch fluoroscopy off.
•
Calculate the maximum tube current.
•
Multiply the tube current to be programmed by 10, since entry on the service PC must be
made in 1/10mA. Round off the value to the nearest whole number.
Fig. 2
If the maximum tube current was already reduced, the mA value
displayed at 110kV should be recorded and used for the calcula-
tion. The maximum skin dose rate to be set should equal 9R/min.
tube current displayed at 110kV in mA * 9 R/min
= tube current to be programmed in mA
measured dose rate value in R/min
Example: Tube current displayed at 110kV: 5mA
Maximum skin dose rate:
9R/min
Measured dose rate value :
10.2 R/min.
5 (mA) * 9 (R/min)
10.2 (R/min)
= 4.41 (mA)
Rounded to the nearest whole number: 44
The value to be programmed is 44.
Preparations
5
•
Attach the dose ionization chamber
at a distance of 30 cm from the I.I.
housing (Fig. 3).
•
Select one of the FL curves S2 / HC2
or IODINE according to the
programming.
(Push-key)
•
Briefly release fluoro.
•
Select kV stop mode and enter
110kV (5mA)
30 cm
Input
screen
Chamber
Holder
Sirephos
NOTE
