BIR 500/225

BIR 500/225 FP is a combined Computed Tomography (CT) and Digital Radiography (DR) system.

225kv CT used in tooth mode research

3D CT Slice in tooth research

Introduction: BIR 500/225 FP is a combined Computed Tomography (CT) and Digital Radiography (DR)

system designed to meet stringent requirements for spatial resolution, contrast discrimination, precision,

repeatability, long term stability, and reliability. The system comprises the following components and

subsystems:

• Comet 225 kV “twin-head” microfocus x-ray system with directional and transmission targets.

Focus sizes of 6 μm directional and 2 μm transmission, with detection capability of 2 μm and 0.5 μm

respectively.

• Varian PaxScan 4030E amorphous silicon flat panel detector with 3200 x 2304 pixels at 127 μm

• Precision servo controlled multi-axis part manipulator with turntable, 50 cm vertical travel, 40 cm

X axis translation, and 40 cm Y axis magnification.

• 1.22 m x 1.83 m optical grade vibration damped mounting table.

• Quad Core Intel® Xeon™ workstation, software, and flat panel color image displays;

• Windows XP OS and ACTIS application software.

• Integration, testing, installation, training, documentation, and one year warranty

 

System Description

BIR 500/225 FP is a Volume Computed Tomography (VCT) system with 2D digital radiography and “live” x-ray imaging capability. The system consists of a 225 kV Comet FXE-225.99 “twin-head” µfocus x-ray unit, Varian PaxScan 4030E amorphous silicon flat panel detector, quad core Xeon workstation, detector interface, four-axis part manipulator with linear servo drives, variable source-object distance, color image display, software, cabling, accessories, and documentation. The system is suitable for x-ray inspection of metallic and non-metallic items over a wide range of density and materials. The system produces cross sectional CT images, cone beam VCT images, in-motion “live” images and digital radiographs (DR). In addition to density mapping, CT provides complete 3-D morphology of parts with highly accurate dimensioning capability. CT also provides superior flaw detection capability of extremely small cracks, porosity and voids that are not visible with film radiography or RTR inspection.

 

3. Object Size & Weight -

 

500 mm diameter, 25 kg;

 

PaxScan 4030E

40 to 225 kV

Gigabit Ethernet;

3200 x 2304;

127 micron x 127 micron;

40.64 cm x 29.26 cm;

3 Hz at full resolution or 15 Hz with 2x2 binning;

< 1% after gain and offset corrections (always applied);

< 6% after first frame;

635 x 330 x 32 mm;

8000:1 (78 db).

Object height limited only by cabinet interior dimensions;

Maximum CT field of view is 450 mm diameter.

 

 

4. CT Image Resolution -

 

True Spatial Resolution (lines & spaces in gauge are resolved)

2 µm for objects up to 5 mm diameter (2 µm focus, transmission target);

5 µm for objects up to 10 mm diameter (2 µm focus, transmission target);

10 µm for objects up to 20 mm diameter (6 µm focus, directional target);

20 µm for objects up to 40 mm diameter (6 µm focus, directional target);

At larger diameters, achievable spatial resolution will be ≤ (Field of View)/2500.

 

Detail Detection (minimum detectable feature size)

1 µm for objects up to 5 mm diameter (2 µm focus, transmission target);

2.5 µm for objects up to 10 mm diameter (2 µm focus, transmission target);

5 µm for objects up to 20 mm diameter (6 µm focus, directional target);

10 µm for objects up to 40 mm diameter (6 µm focus, directional target);

At larger diameters, achievable detail detection will be ≤ (Field of View)/5000.

 

 

8. Pixel Size in Object -

1 µm to 1 mm depending on object diameter and matrix size. CT image field of view maximum size

is 500 mm in ARO scanning mode.

BIR 500/225