30 Adjustments
ARCADIS Varic / Orbic SPR2-310.842.01.07.02 Siemens AG
12.06 CS SD 24
Page 30 of 34
Medical Solutions
Fig. 10: Symbol_table_
Adjustment
1. Register an emergency patient to allow radiation release.
2. Attach the dose measurement chamber on the I.I. input screen.
¹ If a small chamber is used: Attach chamber in full format and zoom format out-
side the displayed dominant circle but inside the visible field.
¹ If a large chamber is used: Center the chamber to the displayed in the dominant
circle.
3. Place 2.7 mm Cu or alternatively 25 mm Al and 1.2 mm CU in front of the collimator.
4. Click on <Go> to start the dose rate adjustment and wait until "NOT ACTIVE" appears
in the status bar "Auto Regulation".
¹ The X-iris and the slot diaphragm open automatically to the maximum outside
position.
¹ The DA CFC 75 kV curve is displayed in the status bar “Control Curve”.
¹ I.I. full format is selected and displayed in the status bar “I.I. Zoom Status”.
I.I. format CU filter
Dose rate in nGy/s
at the I.I. input with grid correction factor 1.5
(min. ... max.)
Tolerance
LOW MID HIGH
Full format 2.7 mm
165
(156 ... 173)
277
(263 ... 290)
555
(527 ... 582)
± 5 %
Zoom 1 2.7 mm
235
(223 ... 246)
393
(373 ... 412)
784
(744 ... 823)
± 5 %
To Next Page
Loading...
Need help?
General
