Siemens SIREMOBIL Iso-C

SIREMOBIL Iso-C SPR2-230.061.01 Page 8 of 30 Siemens AG
System Manual Rev. 13 12.04 CS PS 24 Medical Solutions
5 - 8 Adjustments / Programs
Concluding steps 5
• After setting all dose rates for the survey and zoom formats, click "Stop Update" and wait
until "CAL" disappears from the 7 segment indicator to the right on the operating con-
sole. The TV- iris collimator values are stored to the EE-PROM of the host.
• Press ESC at the service PC to return to the main menu.
• Select the "Data, Backup..." menu.
• Click "Parameter" in the backup window.
• Then click "Backup" .
• Enter" dose rate set" under "Remarks for Parameter".
• Then click "OK" . The parameters are stored to disk.
• You can now exit from the service program.
Checking the dose rate in automatic mode 5
• Center and reattach the dose measurement chamber to the I.I. input screen. .
• Set the kV-mA curve HC1 (3mA plateau curve). If necessary, temporarily program the
HC1 curve.
• During automatic mode (kV STOP is off), check the dose rate for dose rate levels
LOW / MID / HIGH for the survey and zoom format.Take into account the correction fac-
tors for the grid and the dose measurement chamber. If necessary, temporarily change
the dose rate levels and kV-mA curves.
Tolerance margin for the dose rates: +
15%.
• Set the kV-mA curve HC2 (5 mA plateau curve). If necessary, temporarily program the
HC2 curve.
• During automatic mode (kV STOP is off), check the dose rate for dose rate levels
LOW / MID / HIGH for the survey and zoom format.Take into account the correction fac-
tors for the grid and the dose measurement chamber. If necessary, temporarily change
the dose rate levels and kV-mA curves.
Tolerance margin for the dose rates: +
15%.
Checking the dose rate in zoom format with a dose rate measure-
ment chamber that is not completely irradiated may lead to incor-
rect measurements.
NOTE