مؤتمر
High-energy 3-D X-ray tomography for container inspection
| العنوان: | High-energy 3-D X-ray tomography for container inspection |
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| المؤلفون: | Fuchs, Theobald O.J., Sukowski, Frank, Schorr, Christian, Schön, Tobias, Schröpfer, Stefan, Hassler, Ulf, Hofmann, Thomas, Reims, Nils, Firsching, Markus, Tigkos, Konstantinos, Heusinger, Victoria, Moser, Stefan, Langkemper, Ralph, Nau, Siegfried |
| سنة النشر: | 2013 |
| المجموعة: | Publikationsdatenbank der Fraunhofer-Gesellschaft |
| مصطلحات موضوعية: | x-ray, 3D-CT |
| الوقت: | 620, 658, 670 |
| الوصف: | S.83-89 ; Within the ECSIT project, Fraunhofer EMI and EZRT evaluated methods and technologies to enable high-energy 3-D imaging for inspection of large objects like sea freight containers. In particular, the efforts focused on the following: high-energy 3-D X-ray physics, inspection procedures for large objects, material-selective Computed Tomography (CT), 2-D and 3-D image processing to support the detection of illicit contents in packed goods and the development of radiation-resistant X-ray sensors as well as high-intensity X-ray sources. The physical aspects of transmission measurements were optimized based on a simulation study. Among these parameters were the distance of the linear accelerator's focus to the rotational axis, the spatial resolution in dependency on the pixel pitch of a linear detector array (LDA) with 10,000 elements, and collimation as well as alignment of the X-ray fan. To test the system we used a 10'-container packed with various typical goods like furniture or consumer electronics. Filtered back-projection techniques were applied to reconstruct slice images from about 800 projections. We show real 3-D volume data of large objects measured with the set-up as described above. A first qualitative evaluation shows the capability of the high-energy CT-system to deliver images that allow for a recognition of various items by shape, size and internal construction. In addition, the images allow for an estimation of the mass density of larger amounts of homogeneous materials. |
| نوع الوثيقة: | conference object |
| وصف الملف: | application/pdf |
| اللغة: | English |
| العلاقة: | Security Research Conference "Future Security" 2013; 8th Future Security 2013. Security Research Conference; ECSIT; 13N10993; https://publica.fraunhofer.de/handle/publica/381935Test |
| DOI: | 10.24406/publica-fhg-381935 |
| الإتاحة: | https://doi.org/10.24406/publica-fhg-381935Test https://publica.fraunhofer.de/handle/publica/381935Test |
| رقم الانضمام: | edsbas.3C7292BD |
| قاعدة البيانات: | BASE |
| DOI: | 10.24406/publica-fhg-381935 |
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