Gamma-ray CT as a complementary technique for structural inspection of tray-type distillation columns

Khorsandi, M.; Feghhi, S.A.H.

doi:10.1016/j.measurement.2015.09.040

Cited by 10 publications

(2 citation statements)

References 18 publications

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“…which were previously investigated only by gamma radiation density profiling. Researchers have assessed the reconstructed image quality and showed possibilities of gamma CT imaging in the field [7,8]. Given that the detectors are fixed around a vessel in the prototype imaging system, they may be placed in the blind zone for a rotating radioisotope.…”

Section: Jinst 16 P02023mentioning

confidence: 99%

Image reconstruction with sparse-view measurements from a ring scanning gamma CT system

Moon¹,

Park²,

Cho³

et al. 2021

J. Inst.

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We propose a circular scanning system combining a single pair of gamma-ray source and detector to minimize the size of the measurement system. Unlike computerized tomography using an X-ray tube, a low photon-flux occurs in that using gamma rays. To correctly process sparsely sampled and highly noisy data retrieved from the system, we used total-variation minimization for image reconstruction and compared its performance to that of other methods on images in 64 × 64 matrices with 180, 90, and 45 projections. The insufficient projection data retrieve higher quality images for iterative reconstruction, expectation maximization, and projection onto convex sets with total variation than for the conventional filtered back-projection.

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Section: Jinst 16 P02023mentioning

confidence: 99%

Image reconstruction with sparse-view measurements from a ring scanning gamma CT system

Moon¹,

Park²,

Cho³

et al. 2021

J. Inst.

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“…Our focus in this work is on the gamma-ray tomography systems and their applications. A gamma-ray tomography system can have a very wide range of applications such as the study of multiphase flows [10,11], geology science [12], quality control and radiography of mechanical parts [13], inspection of distillation towers and chemical reactors [14], determination of wax deposition inside the pipelines [15], etc.…”

Section: Introductionmentioning

confidence: 99%

Monte Carlo study of plastic rod scintillators for use in industrial computed tomography

Taheri¹,

Askari²

2022

J. Inst.

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Industrial gamma-ray computed tomography systems have found different applications and have become an important tool for non-destructive testing. In this work, high aspect ratio rod plastic scintillators were assessed for use in this type of tomography system. All analyses were performed using Monte Carlo simulation by geant4 toolkit. Validation of the results was done using a 50 cm rod plastic scintillator with a diameter of 5 cm. The results showed that the rod plastic scintillators can be employed in industrial tomography systems for scanning large objects. The spatial resolution of the detection system was estimated more than 1 cm. Finally, the simulated parameters of the selected rod plastic scintillator were compared with an identical NaI(Tl) rod scintillator to find a better understanding about its performance.

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A wireless-controlled lab-scale system for automated gamma column scanning and radiotracer applications

Mutinda,

Kaniu,

Mangala

et al. 2024

Applied Radiation and Isotopes

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Gamma-ray CT as a complementary technique for structural inspection of tray-type distillation columns

Cited by 10 publications

References 18 publications

Image reconstruction with sparse-view measurements from a ring scanning gamma CT system

Image reconstruction with sparse-view measurements from a ring scanning gamma CT system

Monte Carlo study of plastic rod scintillators for use in industrial computed tomography

A wireless-controlled lab-scale system for automated gamma column scanning and radiotracer applications

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