X and Gamma Ray Industrial Tomography

General description
Our offer
Dual-Energy X-Ray Tomography/Radioscopy equipment for quantitative analysis in Security
Dual-Energy X-Ray Tomography/Radioscopy Equipment for Cores Analysis
Data Acquisition Program
Tomogram Reconstruction Program
Dual-Energy Program
Visit our 2D and 3D Tomogram Gallery

General description

Industrial Tomography - which is analogous to medical tomography - is using the principle of radiation attenuation measurements along many directions (rays) passing through the investigated object at different angles (projections) and followed by the use of special mathematical algorithms for reconstructing the cross-section slice or 2D tomogram. By combining the successive 2D tomograms of the scanned object a 3D tomograms could be obtained. In the case of using flat panel detectors, the Tomograph is able to acquire a full 2D projection at a time and, after a full scan around the object, to reconstruct directly the 3D tomogram. In both cases a different-angles digital radiographies are available for investigations.

The main parts of the Industrial Tomograph (see picture below) are: the gamma or X ray radiation source, a linear array or a flat panel radiation detector, a mechanical multi-axe scanner and the appropriate data acquisition, movement control and visualization system that contain the specialized hardware and dedicated software packages.


The simplest scheme of an Industrial Tomograph

Our offer

  • Dual-Energy X-Ray Equipment
  • We are designing and manufacturing various types of X or gamma ray Tomographs, with linear array or flat panel detector type, single or dual-energy, including dedicated software packages for data analysis, according with the customer demand. We are offering also consultancy and support activities for developing new applications or new features implementation to the existing equipment.

    Dual-Energy X-Ray Tomography/Radioscopy equipment for quantitative analysis in Security
    Dual-Energy X-Ray Tomography/Radioscopy Equipment for Cores Analysis

  • Tomo software
  • We are designing and developing various types of programs dedicated to tomography domain, according with the customer demand. We are offering also consultancy and support activities for developing new applications, improving accuracy or new features implementation at existing equipment, like: removing beam hardening effect, special filters and algorithms, artifacts removers, materials identification, dual-energy technique, 2D and 3D visualization technique, etc. Some examples of the our existing dedicated programs are presented bellow:

    Data Acquisition Program
    Tomogram Reconstruction Program
    Dual-Energy Program


Dual-Energy X-Ray Tomography/Radioscopy equipment for quantitative analysis in Security

  • Object max. dimensions:
    • Dia: 40 cm and .Length: 60cm
  • Techniques:
    • Classical multi-angle Radioscopy
    • Classical Tomography
    • Dual-energy Radioscopy
    • Dual-energy Tomography
  • Scanning time:
    • 2 minutes for full length Radioscopy
    • 20 sec. for a Tomogram
  • X-Ray:
    • 160 keV/3mA
  • Detectors:
    • 2 x 240 photodiodes with scintillators or
    • 1 x 1280 photodiodes with scintillators
  • Pixel size:
    • 0.2 / 0.5 mm
  • Mechanical scanner:
    • Vertical translation 50 cm
    • Rotary table dia: 400 mm and 100 mm
  • Output data:
    • Bitmaps of attenuation coefficients and Atomic Effective Number in Radioscopy
    • Tomograms of attenuation coefficients, Atomic Effective Number and Density in Tomography
  • Weight:
    • aprox. 130 Kg
  • Dimensions (cm):
    • 80 x 80 x 140

Click to enlarge

Click to enlarge

Dual-Energy X-Ray Tomography/Radioscopy Equipment for Cores Analysis

  • Core dimension:
    • max Diameter: 12 cm and max Length: 100cm
  • Techniques:
    • Classical multi-angle Radioscopy
    • Classical Tomography
    • Dual-energy Radioscopy
    • Classical and Dual-energy Tomography
  • Scan time:
    • 2-4 minutes for full length Radioscopy
    • 30 sec. for one 2D Tomogram
  • X-Ray source:
    • 160 keV/3mA
  • Detectors:
    • 2 x 240 photodiodes with scintillators
  • Pixel size:
    • 0.5 mm (0.2 mm at request)
  • Mechanical scanner:
    • Vertical translation 100 cm
    • Rotary table dia: 120 mm
  • Output data:
    • Bitmaps of attenuation coefficients and Atomic Effective Number in Radioscopy
    • Tomograms of attenuation coefficients, Atomic Effective Number and Density
  • Weight:
    • aprox. 140 Kg
  • Dimensions (cm):
    • 80 x 60 x 240

Click to enlarge

Click to enlarge

Data Acquisition Program is programming the tomograph scanner movement and acquires the detectors data. Is working in conjunction with various Data acquisition boards for controlling the mechanical scanner and for acquiring data continuously during the movement. It displays the data acquired and some initial correction could be applied (bad pixels, linearity compensation, etc.) or the data could be converted to attenuation values using Gain and Offset data files. The program could work also in dual-energy configuration.
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Tomogram Reconstruction Program is specialized in tomogram reconstruction algorithm on data acquired with Data Acquisition Program. It is based on Filtered Back Projection reconstruction algorithm and uses various filters and special smoothing and enhancing data contrast technique, displaying the tomogram and the histogram of it. The program is using in the computation process only a pre-computed Look-up matrix that contains all the information about the matrix size, detectors number and positions, X-ray and matrix position, etc. The reconstruction time for a 400 x 400 slice (tomogram) computed from 400 projections is less than 7 seconds (2 GHz Pentium IV machine) running in LabViewtm. Much faster variants are available at request.
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Dual-Energy Program is using two tomograms acquired at two energies with Data Acquisition Program and reconstructed with Tomogram Reconstruction Program. Based on the two tomograms, the program computes and displays the tomograms of Atomic Effective number (Zeff) and Density (ρ) and could identify a specific material.
Click to enlarge



Please visit our 2D and 3D Tomogram Gallery:

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