A PROTOTYPE OF PORTABLE DUAL ENERGY TOMOGRAPHIC SYSTEM FOR MONITORING OF LIQUID AND GEL EXPLOSIVES V.Vengrinovich. Institute of Applied Physics, Belarus. - презентация

1 A PROTOTYPE OF PORTABLE DUAL ENERGY TOMOGRAPHIC SYSTEM FOR MONITORING OF LIQUID AND GEL EXPLOSIVES V.Vengrinovich. Institute of Applied Physics, Belarus Academy of Sciences. ICTTIAP A PROTOTYPE OF PORTABLE DUAL ENERGY TOMOGRAPHIC SYSTEM FOR MONITORING OF LIQUID AND GEL EXPLOSIVES V.Vengrinovich,

2 Components of the X-ray Inspection System -1-

3 Laying of the components of X-ray inspection system in a suitcase -2-

4 Identification of mortgages and explosives in the car -3-

5 Identification of mortgages and explosive devices in the furniture -4-

6 The inspection system can easily be extended by one operator -5-

7 Recognition of substances: explosive inside a metal case -6-

8 Advantages of used X-ray sources As an X-ray emitter can be used microfocus units of X-Ray Source 100 kV and 150 kV (in cases with a battery- powered), as well as any of the monoblock high current. The main advantage of microfocus emitters in comparison with pulsed devices is the ability to obtain images of selected areas of the test object with a large geometric magnification ( times) without sacrificing image quality. Microfocus apparatus can smoothly adjust the high voltage to achieve the best detection of foreign matter under the control of objects with different thicknesses (which is impossible for pulsed devices whose radiation energy is fixed). -7-

9 SPECIFICATIONS -8-

10 Creating a tomographic system based on X-ray system CT is an even more sophisticated X-ray technique in which cross-sectional images ("slices") through an object are numerically reconstructed from X-ray projections at various angles around the object. These cross-sectional images can be added together to produce a three dimensional image (as in medical CAT scans). Along with the three-dimensional image, the effective Z number is calculated and materials with the same Z number as explosives can be identified. -9-

11 High-energy projection ray sums -10-

12 Low-energy projection ray sums -11-

13 Projection expressed in equivalent length of the Plexiglas -12-

14 Projection expressed in equivalent length of iron -13-

15 Horizontal layer of the reconstructed distribution of the effective atomic number -14-

16 Vertical layer of the reconstructed distribution of the effective atomic number -15-