Konica Minolta KDR AU DDR User Manual

27
KMHA 500-000099
Revision D
KDR
TM
AU-DDR Advanced U-Arm System with
Dynamic Digital Radiography (KDR AU DDR)
III. USER INTERFACES
10.0 COLLIMATOR
10.1 Description
The X-ray eld is dened by six pairs of brass shutters, four of which are lead lined. The six pairs of shutters move perpen-
dicularly within the X-ray eld. Two pairs of shutters are located near the focus, two are located near the entrance window,
and two are located near the exit window of the X-ray beam from the collimator. The shutters near the exit window serve to
accurately dene the X-ray eld edges (see Figure 10.2.1.)
Shutter movements are manual, controlled by two knobs (or three, see “Three Knob Collimator” section) on the collimator
front panel.
The collimator is supplied with a ange for rotation.
10.2 Operating Instructions
Light/X-ray Field Setting
1. Make sure the positioner control panel is turned on (see Section 9.1, “System Start Up”).
2. Set the collimator at 100 cm SID (see Figure 10.2.1 and Figure 10.2.2).
3. By rotating the knobs and with the knob index on the front panel, follow the tags of the scale (see Figure 10.2.1).
4. Do not force the knobs.
5. Activate the light eld by pressing the related push-button on the collimator front panel (or the collimator light
button on the bucky control panel (see Figure 10.2.1).
6. The collimator is ready to operate.
Operation
The collimator has been designed to operate as follows:
• The light source ON time for the light eld is factory set at 30 seconds. It is adjustable from 30 to 45 seconds
(contact a eld service engineer to make this adjustment).
• The normal ON/OFF cycle is set at 1 minute followed by an idle time of 4 minutes to allow for cooling time (i.e.,
1 minute ON / 4 minutes OFF).
• The eld is set by the two (or three) knobs on the front panel by following the indications of the scale with the
knob index or visually with the light eld.
Front Panel
The X-ray eld must be set by adjusting the two knobs that control the movement of the shutters, the long aperture on the
right, and the cross aperture on the left (see Figure 10.2.1).

Konica Minolta KDR AU DDR Specifications

General

Brand	Konica Minolta
Model	KDR AU DDR
Category	Medical Equipment
Language	English