LORAD AFFINITY Series, Service Manual

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A-10 P/N 9-500-0255
Service Manual
Appendix A: Specifications
System Specifications
1.14 Image Receptors
Image Receptors The image receptor support device is designed
to accept the following receptors, which are
inserted from the front of the C-arm.
18 x 24 cm front load cassette holder used
with magnification platform.
18 x 24 cm SRL 2000 Bucky
24 x 30 cm SRL 2000 Bucky
18 x 24 cm HTC Bucky
24 x 30 cm HTC Bucky
Magnification Table
1.15 Automatic Exposure Control Specifications
AEC Detector Configured with three 1.0 cm square sensors
configured in a “D” shaped pattern with the
center sensor 8.0 mm forward of the outer two.
Detector Positioning The detector is centered laterally in the IRSD
and may be moved forward or rearward to one
of 7 detent locations. Position #1 is 1.5 cm
from the chest wall, increments at 1.7 cm
intervals from position #1. Total movement of
10.2 cm.
AEC Detector Position Indication The detent position of the sensor is displayed
on the corresponding LED (7 LEDs) on the AEC
Position Indicator on the upper compression
device cover.
kV & Thickness Tracking AEC compensates for kV between 20 kV and
39 kV, and for breast thickness between 2.0
cm and 6.0 cm (at appropriate clinical kV) to
produce optical densities within 0.15 OD from
the mean Optical Density.
Exposure Termination The AEC system can determine if the exposure
will reach the back-up-time in which case the
exposure is terminated within one of the fol-
lowing limits:
55 max milliseconds (maximum of 110 ms
when in Auto-kV or Auto-Filter modes)
5.25 max mAs (maximum of 10.5 mAs when
in Auto-kV or Auto-Filter modes)
an entrance exposure to the ACR MAP phan-
tom of less than 60 mR (160 mR when in Auto-
kV or Auto-Filter modes)
Indication is made to the operator, and a man-
ual reset is required to continue the exam.