Adjustment Method 2 - GE AMX-4+ Technical Manual

GE MEDICAL SYSTEMS
REV 5
1 4 2

Adjustment Method 2

Note:
ILLUSTRATION 1-7
APPEARANCE OF X-RAY
FIELD AND LIGHT FIELD
ALIGNMENT ON EXPOSED
FILM USING LEAD STRIPS
1. Place loaded cassette (14  17 inches (35.56 x 43.18 cm) suggested) on floor di
rectly beneath collimator.
2. Set SID to 40 inches.
3. Set collimator for 8  10 inches.
4. Turn on field lamp.
5. Place lead strips at each corner of light field to demark size of field. See Illustra
tion 1-7.
6. Expose film. Do not move film cassette.
D 60 kVp, 2 mAs.
7. Open collimator blades.
8. Expose film a second time and develop the film.
D 60 kVp, 2 mAs.
This exposure should include the lead strips marking the corners of the light
field. See Illustration 1-7. If the lead strips do not show, reload the cassette
and repeat steps 1 though 8 but open the collimator blades in step 7 far
enough to include the lead strips.
A
1-9
(MODEL 2169360, 2236420 & 2275938 SERIES)
DIRECTION 2173225-100
C
B
D
AMX-4+ SERVICE
FILM
LEAD STRIPS
LIGHT FIELD
X-RAY FIELD
HORIZONTAL
DIFFERENCE
VERTICAL
DIFFERENCE