Comparison to Images from a Computed Radiography System for Non-destructive Testing Using Selenium-75, Iridium-192, and X-rays

강상묵,; 신창호,; Ha, Pham Nhu Viet; 최창일,; Kim, Jong Kyung; 김용균,

doi:10.3938/jkps.59.717

Cited by 4 publications

(5 citation statements)

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“…Higher energies allow for the imaging of thicker, higher density materials. Radioisotopes such as 192 Ir, 75 Se, and 60 Co and linear accelerators (linacs) can serve as radiation sources . The type of photon interaction shifts from the photoelectric effect (energies less than 50 keV) to Compton scattering (100 keV to 10 MeV) as the energy of the radiation probe increases.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of a Fluorochlorozirconate Glass‐Ceramic Storage Phosphor Plate for Gamma‐Ray Computed Radiography

et al. 2015

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A fluorochlorozirconate (FCZ) glass-ceramic containing orthorhombic barium chloride crystals doped with divalent europium was evaluated for use as a storage phosphor in gamma-ray imaging. X-ray diffraction and phosphorimetry of the glassceramic sample showed the presence of a significant amount of orthorhombic barium chloride crystals in the glass matrix. Transmission electron microscopy and scanning electron microscopy were used to identify crystal size, structure, and morphology. The size of the orthorhombic barium chloride crystals in the FCZ glass matrix was very large,~0.5-0.7 lm, which can limit image resolution. The FCZ glass-ceramic sample was exposed to 1 MeV gamma rays to determine its photostimulated emission characteristics at high energies, which were found to be suitable for imaging applications. Test images were made at 2 MeV energies using gap and step wedge phantoms. Gaps as small as 101.6 lm in a 440 stainless steel phantom were imaged using the sample imaging plate. Analysis of an image created using a depleted uranium step wedge phantom showed that emission is proportional to incident energy at the sample and the estimated absorbed dose. The results showed that the sample imaging plate has potential for gamma-ray-computed radiography and dosimetry applications.

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Section: Introductionmentioning

confidence: 99%

“…CR is also used in nondestructive testing to check the internal structure of an object such as a pipe or a welded component . Unlike with medical imaging, dose is generally not a concern, so longer exposures and higher energy photons, including those in the MeV portion of the electromagnetic spectrum, may be used to probe the materials.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of a Fluorochlorozirconate Glass‐Ceramic Storage Phosphor Plate for Gamma‐Ray Computed Radiography

et al. 2015

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“…Digital films form two-dimensional images through the absorbed radiation, while digital detectors for immediate images for the user to see on an interface. The material defects would alter the radiation, which forms discontinuities in the formed image by the detector, and this is where the trained users would classify the material defects and irregularities, through the image discontinuities [ 72 ]. When dealing with this type of testing methodology, extra caution must be taken due to the presence of radiation, which can be done by using proper protective equipment and careful test execution.…”

Section: Non-destructive Testing (Ndt) Techniquesmentioning

confidence: 99%

Prognosis methods of stress corrosion cracking under harsh environmental conditions

Hamdan,

Alsit,

Al Tahhan

et al. 2024

Heliyon

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“…Its results are input to the raw material procedure, manufacturing parameter sets, inclusions analysis, and controlled porosity development [12]. The XCT technology is ideal for studying the outcome of AM [13]. In the last period, XCT has become the NDT method used in measuring dimensions for geometrical specifications and is commercially available [14].…”

Section: Introductionmentioning

confidence: 99%

Radiographic testing of 3D-printed thermoplastics using Am-241 as a gamma-ray source

Alaqab

Siddiq

Banoqitah

et al. 2023

Mater. Res. Express

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The industrial production of 3D printing is known as additive manufacturing (AM), in which a computer controls the process of producing 3D objects. Although X-ray computed radiography (XCT) is extensively used in the quality control and testing of additive manufacturing products, the gamma-ray radiography capabilities for these applications still need to be investigated. This study aimed to evaluate the performance of gamma-ray radiography using americium-241 (Am-241) as the gamma source. Here, we inspected fused deposition three-dimensional (3D) modeling products produced from polylactic acid (PLA) as thermoplastic samples. Radiographic testing of 3D-printed thermoplastic samples was performed using Monte Carlo simulations and validated by experimental studies. We used Am-241 (gamma-ray source) to conduct simulations and experiments investigations; two simulations were used: one by using 59.6 keV energy of gamma-ray and the other using all gamma-ray energies, including 16.96 keV, 26.3446 keV% 2.31 up to 662.40 keV. Also, we performed the X-ray radiography test to be used as a standard. The results showed that the defect detectability in the 3D-printed PLA samples using Am-241 as a gamma-ray source is comparable to that of X-ray results. This study concluded that the Am-241 could be used as the gamma-ray source to perform the radiography test for the products produced by 3D-printed thermoplastics.

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Comparison to Images from a Computed Radiography System for Non-destructive Testing Using Selenium-75, Iridium-192, and X-rays

Cited by 4 publications

References 0 publications

Evaluation of a Fluorochlorozirconate Glass‐Ceramic Storage Phosphor Plate for Gamma‐Ray Computed Radiography

Evaluation of a Fluorochlorozirconate Glass‐Ceramic Storage Phosphor Plate for Gamma‐Ray Computed Radiography

Prognosis methods of stress corrosion cracking under harsh environmental conditions

Radiographic testing of 3D-printed thermoplastics using Am-241 as a gamma-ray source

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