Table of Contents
Advertisement
6 Alpha RT installation step by step
32551-IMG rev 6
1
Select the default kV values that the site will use with the bucky,
cassette tunnel and magnification table. Mark the values in the
tables 5.8, Alpha RT settings for Molybdenum filter and 5.9, Alpha RT
settings for Rhodium filter.
2
Select the nearest film & screen combination from the table 5.8,
Alpha RT settings for Molybdenum filter that the site will use with the
bucky, cassette tunnel and magnification table. Mark the values in
the tables 5.8, Alpha RT settings for Molybdenum filter and 5.9, Alpha
RT settings for Rhodium filter.
3
Select molybdenum filter and install the bucky. Adjust the AEC
software gain. See section AEC Adjustment and Thickness
compensation adjustment.
See also AEC adjustment quick fix guide.
4
Program the reference value for the IQC. See section Pr#64 AEC,
parameters d, h and Operation Instructions section INTEGRATED
QUALITY CONTROL TEST.
5
Go into (A) mode. Install the magnification kit. Make an exposure with
40mm acrylic using 30 kV or a clinical kV at that thickness. Process
the film and measure the optical density.
– if the optical density is too high, select density- until the wanted
optical density is reached.
– if the optical density is too low, select density+ until the wanted
optical density is reached.
Mark the new density value in the tables 5.8, Alpha RT settings for
Molybdenum filter and 5.9, Alpha RT settings for Rhodium filter.
Repeat this test with the cassette tunnel.
6
Select rhodium filter and repeat the previous test for the bucky,
cassette holder and magnification tunnel.
7
Go into program (Pr) mode (press Den-&Den+) and program the
default values marked in the tables 5.8, Alpha RT settings for
Molybdenum filter and 5.9, Alpha RT settings for Rhodium filter.
8
Select program #62 INF and press Autoexp to print the programmed
values.
6.1
S
OFTWARE BLOCK DIAGRAM
See appendix.
GE Healthcare
6 Alpha RT installation step by step
89
Hide quick links:
Advertisement
Table of Contents
