Collimator, X-Iris - Siemens SIREMOBIL Iso-C Troubleshooting Manual

52

Collimator, X-Iris

NOTE
WARNING
Attach the center cross in the center of the image intensifier input screen.
Connect the service PC to the serial interface of the SIREMOBIL Iso-C.
Start the service program.
Select the "Adjustment, Calibration" menu.
Answer the query with "yes".
Select "X-Iris" in the "Function Groups" combo box.
In the window "Available Functions:" select "1. Init (Limits Off / Autosearch)" and click
Execute.
Close the status window by clicking the OK button.
For the query "Do you want to reset the Unit", click "No".
The X-Iris can now be completely opened and closed with the X-Iris keys.
Select I.I. survey format.
X
During fluoroscopy, adjust the X-Iris by opening and closing it with the X-Iris keys so
that the collimator blades are still visible along the edge of the I.I.
Select "2. II. - Full Format Position" on the service PC and click "Execute".
Close the status window by clicking the OK button.
For the query "Do you want to reset the Unit", click "No".
Switch to zoom format.
X
During fluoroscopy, adjust the X-Iris by opening and closing the X-Iris keys so that the
collimator blades are still visible along the edge of the I.I.
Select "3. II. - Zoom Format Position" on the service PC and click "Execute".
Close the status window by clicking the OK button.
For the query "Do you want to reset the Unit", click "No".
Open the X-Iris completely.
Select "4. CEX Position" on the service PC and click "Execute".
Close the status window by clicking the OK button.
For the query "Do you want to reset the Unit", click "No".
Close the X-Iris completely.
X
Release fluoroscopy. The X-Iris must close to < 4.5 cm .
SIREMOBIL Iso-C
Because of the mechanical hysteresis of the semi-transpar-
ent slot diaphragm, open the collimator blades to maximum
aperture prior to adjusting the radiation iris.
X-ray radiation!
See (Safety information / p.
Radiation protection is required. Wear a lead apron.
SPR2-230.840.01.01.02
08.08
Adjustments / Programs
11).
Page 52 of 148
CS PS SP
5.5
© Siemens, 2008
For internal use only