Gantry
a) Gantry external view
1. Gantry aperture (720 mm diameter)
1. Microphone
2. Sagittal laser alignment light
3. Patient guide lights
4. Xray exposure indicator light
5. Emergency stop buttons
6. Gantry control panels
7. External laser alignment lights
8. Patient couch
9. ECG gating monitor
b) Gantry internal view
1. Xray tube
2. Filter, collimator, reference detector
3. Internal projector
4. Xray tube heat exchanger
5. High voltage generator (0-75 kV)
6. Direct drive gantry motor
7. Rotation control unit
8. Data acquisition system (DAS)
9. Detectors
10. Slip rings
11. Detector temperature controller
12. High voltage generator (75-150 kV)
13. Power unit (AC to DC)
14. Line noise filter
OPERATOR CONSOLE
- equipped with two or three console
- one console is used by CT radiologic technologist to operate imagine system
- another console available to other technologist to post-process image for filming and filing
- a third console may be available for physician to view the images and manipulated image contrast, size, and general visual appearance
PATIENT TABLE
- patient table is flat for the patient to lie down during scan
- the table also responsible for positioning the patient with gantry
- up or down positioning movements are available as well as the longitudinal positioning of the patient into the gantry aperture
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