Collimator Display, Slot Diaphragm - Siemens ARCOSKOP Troubleshooting Manual

5 - 30
Zoom format, X-Iris open
•
Briefly release fluoro. The X-Iris is displayed on the monitor.
•
Use the keys for opening and closing the X-Iris to set the diameter of the superimposed
circle to the size of the X-Iris.
•
In the "Available Functions:" window select "Open Pos - II. Zoom Format and click on
"Execute".
•
Close the status window by clicking on the OK button.
•
For the query "Do you want to reset the unit", click on "No".
Save values and end adjustment
•
In the "Available Functions:" window select "INIT OFF & STORE VALUES" and click on
"Execute".
•
Close the status window by clicking on the OK button.
•
For the query "Do you want to reset the unit", click on "Yes".
Concluding tasks
Before ending the service program, save the new parameter values to disk
(Service PC, Data menu, Backup).

Collimator display, slot diaphragm

NOTE
NOTE
Prerequisites
•
The setting of the camera rotation is correctly adjusted and is in the 0° position.
•
With existing CARD collimator, the parameter "OFFSET" (see "Adjustments...,
Parameters..., SLOT DIAPHRAGM SCREEN DISPLAY") must be set to the value 50.
With existing standard collimator, the parameter "OFFSET" must be set to the value 0.
•
Mark the circle mask diameter in the upper left corner and lower right corner on the
screen of monitor A.
•
Connect the service PC to the serial interface of the ARCOSKOP.
•
Start the service program.
•
Select the "Adjustments, Calibrations..." menu. Answer the query with "Yes".
•
Select "SCREEN DISPLAY SLOT DIAPHRAGM" in the "Function Groups:" combo box.
ARCOSKOP
System Manual
With an existing CARD collimator, the two blades of the slot dia-
phragm are shown on the monitor off-center.
Setting the slot diaphragm display is performed with respect to
the visible front edge of the semitransparent slot diaphragm bla-
des. With an existing CARD collimator, the slot diaphragm blades
are displayed approx. 25 mm further to the outside after the set-
ting procedure. This ensures that, in the middle kV range, the dis-
played slot diaphragm blades mark the limit of the visible
shadowing in the fluoroscopic image more or less.
SPR2-250.840.01
Rev. 01
Adjustments / Programming
Seite 30 von 42
09.05 CS PS 24
5
Siemens AG
Medical Solutions