Monte Carlo Simulation for the Design of Industrial Gamma-ray Transmission Tomography

Kim, Jong Bum; Jung, Sung‐Hee; Moon, Jinho; Kwon, Taek-Yong; Cho, Gyuseong

doi:10.15669/pnst.1.263

Cited by 8 publications

(3 citation statements)

References 9 publications

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“…reconstruct the cross-sectional image of a sample from several projections acquired at different projection angles. Gamma-ray CT scanners are employed in various medical fields [17] and for nondestructive industrial inspections [18], [19].…”

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confidence: 99%

Selective Isotope CT Imaging Based on Nuclear Resonance Fluorescence Transmission Method

Ali

Ohgaki

Zen

et al. 2020

IEEE Trans. Nucl. Sci.

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The isotope selectivity of computed tomography (CT) imaging based on nuclear resonance fluorescence (NRF) transmission method using a quasi-monochromatic laser Compton scattering (LCS) gamma-ray beam in the MeV region was demonstrated at the Ultra Violet Synchrotron Orbital Radiation-III (UVSOR-III) Synchrotron Radiation Facility (Institute of Molecular Science, National Institute of Natural Science) for two enriched lead isotope rods (206 Pb and 208 Pb) implanted in an aluminum cylinder. Since these two rods show the same gamma-ray attenuation in atomic processes, it is impossible to differentiate between them using a standard Gamma-CT technique based on atomic attenuation of gamma rays. The LCS gamma-ray beam had a maximum energy of 5.528 MeV and an intensity of approximately 5.5 photons/s/eV at the resonance energy (J π = 1 − at 5.512 MeV in 208 Pb). A lead collimator with a hole diameter of 1 mm was used to define the size of the LCS gamma-ray beam at the CT target. The CT image of the 208 Pb rod was selectively obtained with a 2-mm pixel size resolution, which was determined by the horizontal step size of the CT stage. Index Terms-Computed tomography (CT), isotope distribution, laser Compton scattering (LCS) gamma-ray beam, nuclear resonance fluorescence (NRF). I. INTRODUCTION N ONDESTRUCTIVE assay (NDA) technology, which is used to identify specific isotopes in a substance,

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mentioning

confidence: 99%

Selective Isotope CT Imaging Based on Nuclear Resonance Fluorescence Transmission Method

Ali

Ohgaki

Zen

et al. 2020

IEEE Trans. Nucl. Sci.

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“…Together with simulation, experiment in laboratory scale was also presented. The image reconstructed results showed good agreement between simulation and experiment [4][5][6]. Not only gamma radiation that had been used but also x-ray was used in ICT to investigate the efficiency of packing in a distillation process [7][8][9].…”

Section: Introductionmentioning

confidence: 58%

Development of Data Acquisition Technique for Inspection of Pipes in Vessel using Gamma Scanning Coupled with Computed Tomography

Saengchantr¹,

Srisatit²,

Chankow³

2019

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This study proposes the data acquisition technique for on-line inspection of the pipe installed inside closed vessels through a laboratory model. The technique was based on transmission of gamma radiation that projected onto the radiation detectors. Laboratory model composed of four vertical pipes with different size installed inside the top opened tank. The proposed acquisition technique allowed the scanning with a few number of detectors to complete the projection as stated in Computed Tomography algorithm. Projected data were computed and reconstructed using filtered back projection algorithm and displayed in two dimension image. The simulation using Monte Carlo for N-Particle computer code (MCNP) was presented in this paper based on theoretical algorithm to be regarded as a reference result. The comparison between experimental results and simulation result showed a good agreement to each other. This technique could be extended to inspect integrity structure of pipe in vessels in petroleum and petrochemical in field work.

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“…The evolution of gamma scanning for industrial CT has been associated with the increased use of simulation software for testing image reconstruction algorithms [13], collimator optimization [14], and design of tomographic systems [15].…”

Section: Introductionmentioning

confidence: 99%

A virtual laboratory for radiotracer and sealed-source applications in industry

et al. 2021

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Radioactive sealed sources and radiotracer techniques are used to diagnose industrial process units. This work introduces a workspace to simulate four sealed sources and radiotracer applications, namely, gamma scanning of distillation columns, gamma scanning of pipes, gamma transmission tomography, and radiotracer flow rate measurements. The workspace was created in Geant4 Application for Tomographic Emission (GATE) simulation toolkit and was called Industrial Radioisotope Applications Virtual Laboratory. The flexibility of GATE and the fact that it is an open-source software render it advantageous to radioisotope technology practitioners, educators, and students. The comparison of the simulation results with experimental results that are available in the literature showed the effectiveness of the virtual laboratory.

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Monte Carlo Simulation for the Design of Industrial Gamma-ray Transmission Tomography

Cited by 8 publications

References 9 publications

Selective Isotope CT Imaging Based on Nuclear Resonance Fluorescence Transmission Method

Selective Isotope CT Imaging Based on Nuclear Resonance Fluorescence Transmission Method

Development of Data Acquisition Technique for Inspection of Pipes in Vessel using Gamma Scanning Coupled with Computed Tomography

A virtual laboratory for radiotracer and sealed-source applications in industry

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