| 1178 |
| X-Ray
Source |
| X-ray
Source (2 tubes) |
2
X sealed air-cooled X-Ray tubes 20-65kV, 40W each filtration |
| Energy
Range |
Continuously
variable peak energy 20-60kV for both sources |
| X-ray
Filtering |
0.5mm
aluminum filter |
| X-Ray
Detector |
| CCD
(2 detectors) |
2
X 12-bit digital cooled CCD with fibre optic coupling to scintillator |
| Number
of Pixels |
1280x1024
|
| Typical
Exposure Times |
Typically
140ms exposure; 40ms minimum exposure
|
| Maximum
Object Size for Reconstruction |
Single
Scan |
82mm
diameter x 82mm length |
Multi-
Scan Mode |
82mm
diameter x 210mm length |
| Scan
Times |
Scan |
26
sec: (160um, 1.26 rotation step) |
1min
55sec: (80um, 0.72rotation step) |
Scan
+ Reconstruction |
45
sec
(512x512x512 with 4 PC recon. cluster) |
8
min
(1024x1024x1024
with 4 PC recon. cluster) |
| Reconstruction
Array |
| |
Scan
Area |
Number
of Pixels |
Pixel
Size |
1. |
82mm
x 82mm |
|
|
2. |
|
10240x512x512 |
|
3.. |
82mm
x 82mm |
512x512x512 |
160um |
4.. |
|
|
160um |
| Other
Specifications |
| Reconstruction
Cluster |
4
Dual Intel-XEON 3.8 GHz,
2GB RAM integrated Gigabit
(10/100/1000) network ,Windows-XP
Professional. Interconnection: network switch for communication
between host and reconstruction PCs, monitor/mouse/keyboard switch.
|
| Software
Package |
Scanner
control with simultaneous acquisition from two cameras with volumetric
(cone-beam) reconstruction of full scanning volume. Reconstruction
cluster uses 4 computers to reconstruct the entire volume and
then collect the data onto the host computer. All results calibrated
in HU.
2D/
3D image processing and analysis, 3D-rendering, realistic visualization
and manipulation of reconstructed object.
Physiological
monitoring with real-time color imaging, movement detection, breathing
synchronization, cardiac gating, ECG-amplifier, body temperature
measurement and stabilization. |
| Data
Formats |
BMP
for results and 3D-movies, conversion to TIFF, JPG, AVI, DICOM |
| Reconstruction
Algorithm |
Networkable
multithread reconstruction by modified Feldkamp algorithm with volumetric
(cone-beam) geometry.
Reconstruction program can run with virtually unlimited number of
PCs in the cluster and perform adaptive task distribution according
to automatically measured PC performance and network bandpass. |
| Radiation
Safety |
<1uSv/h
average during full scan at 20cm from the instrument surface |
| Installation
Requirements |
Power:100-240V/3A/50-60Hz
(autoswitching), temperature:18-25C, no condensation |
| Size/Weight |
Desk
top scanner 1250 x 700 x 720mm / 140Kg + 1...5computers, monitor,
keyboard, mouse. |
