1, Technical specifications and parameters

1.1 Gantry system

1.1.1 Frame size: 76cm, angle: ±30 degrees can be remote control operation into / out, up / down table and gantry title

1.1.2 Slip ring type: contactless high speed data link slip ring

1.1.3 Detector type: GOS solid detector

1.1.4 Detector row: 32

2.1 X-ray system

2.1.1 Tube anode heat capacity: 5.3MHU

2.1.2 Maximum anode heat dissipation rate of tube: 815 kHU/min

2.1.3 Small focus spot: 0.5 x 1.0 mm

2.1.4 Large focus spot: 1.0x 1.0 mm

2.1.5 Focus to the scanning field and other central distance: 570mm

2.1.6 Minimum tube voltage: 80kV

2.1.7 Maximum tube voltage: 140kV

2.1.8 High voltage generator power: 50.4kW

2.1.9 Minimum current: 10mA

2.1.10 Maximum current: 420mA

2.2 Patient Table

2.2.1 Maximum scan range: 1850mm

2.2.2 The highest vertical movement of the table is 990mm, the lowest vertical movement of the table is: 425mm

2.2.3 Maximum table longitudinal speed: 150 mm/s; minimum longitudinal speed: 5 mm/s

2.2.4 The table longitudinal movement accuracy: ±0.25 mm

2.2.5 The maximum patient table load: 250kg

2.3 Console and computer system

2.3.1 The main console

2.3.1.1 Master computer: Lenovo P500

2.3.1.2 Computer memory: 32GB

2.3.1.3 Host hard drive:  5TB

2.3.1.4 DVD-ROM disc recorder system (DICOM compatibility) DVD+R Rom

2.3.1.5 Color LCD flat-panel monitors flicker 1 unit (progressive)

2.3.1.6 Standard DICOM 3.0 interface: standard configuration, with the following functions：

Send / receive Query / retrieval Basic print function Storage

Network interface (RIS / HIS)

2.3.1.7 Laser camera interface

2.3.1.8 Remote diagnosis system and remote diagnosis platform

2.3.1.9 Virtual photo type setting function

2.3.1.10 Console color 3D display

2.3.2 Advanced workstation

2.3.2.1 Offers a package of clinical image processing software, such as MPR, VR, SSD, the maximum and minimum software package Projection; standard configuration volume measurement software.

2.4 Scan parameters

2.4.1 Scan time: 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, and 2.0 sec

2.4.2 Imaging speed (number of imaging per scan): 16slice/loop

2.4.3 Scan slice thickness: 0.625mm, 1.25mm, 2.5mm, 3.75mm,

5mm, 7.50mm, and 10mm

2.4.4 Minimum reconstruction display field (FOV): 50mm

2.4.5 Maximum reconstruction display field (FOV): 500mm

2.4.6 Image reconstruction matrix: 512 * 512, 1024*1024

2.4.7 Single scan time: 100 sec

2.4.8 Maximum scan pitch (Factor Pitch): 1.75:1

2.4.9 Minimum Factor (Pitch): 0.15:1

2.4.10 Positioning piece length: 1950 mm

2.5 Image quality

2.5.1 Spatial resolution (X, Y axis plane):20 lp/cm 0% MTF

2.5.2 Spatial resolution (Z axis):20 lp/cm 0% MTF

2.5.3 Density resolution: (indicating the scan conditions): @0.30%

3mm

2.5.4 CTDIvol: Head 14mGy/100mAs Body; 7.5mGy/100mAs