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    Wyświetlanie 1-3 z 3
    Tytuł:
    A virtual laboratory for radiotracer and sealed-source applications in industry
    Autorzy:
    Mohammed, Mohammed Siddig H.
    Banoqitah, Essam M.
    Elmoujarkach, Ezzat
    Alhawsawi, Abdulsalam M.
    Djouider, Fathi
    Powiązania:
    https://bibliotekanauki.pl/articles/1841639.pdf
    Data publikacji:
    2021
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    sealed sources
    radiotracers
    industrial gamma tomography
    simulation
    GATE
    Opis:
    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 fl ow rate measurements. The workspace was created in Geant4 Application for Tomographic Emission (GATE) simulation toolkit and was called Industrial Radioisotope Applications Virtual Laboratory. The fl exibility 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.
    Źródło:
    Nukleonika; 2021, 66, 1; 21-27
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Utilization of an energy-resolving detection system for mammography applications : a preliminary study
    Autorzy:
    Taha, Eslam M.
    Elmoujarkach, Ezzat A.
    Balamesh, Ahmed
    Alzaidi, Samir A.
    Alhawsawi, Abdulsalam M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2171786.pdf
    Data publikacji:
    2022
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    energy-resolving detection systems
    gamma-ray imaging
    GATE simulation toolkit
    mammography
    Opis:
    Breast cancer remains one of the major causes of mortality among female cancer patients. This fact caused a spark in the medical field, which in turn helped to improve the diagnostic and treatment of breast cancer patients over the years making this field always active with new ideas and innovative methods. In our study, a new method was explored using an energy-resolving detection system made from a NaI (Tl) scintillation detector to detect the gamma photons from an Am-241 radiation source to try and construct an image by scanning the American College of Radiology (ACR) mammography phantom. In addition to the experimental work, a Geant4 Application for Tomographic Emission (GATE) toolkit was used to investigate more complex options to improve the image quality of mammographic systems, which is limited by the experimental setup. From the experimental setup, the researchers were able to construct an image using the 26.3 keV and the 59.5 keV energy photons, to show the largest size tumour (12 mm) in the ACR phantom. With an improved setup in the simulation environment, the majority of the ACR phantom tumours was visible using both energy windows from the 26.3 keV and the 59.5 keV, where the 26.3 keV yielded better quality images showing four tumours compared to three when using 59.5 keV. The simulation results were promising; however, several improvements need to be incorporated into the experimental work so that the system can generate high-resolution mammographic images similar to the ones obtained by the GATE simulation setup.
    Źródło:
    Nukleonika; 2022, 67, 2; 35--40
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Prompt gamma-ray methods for industrial process evaluation : a simulation study
    Autorzy:
    Mohammed, Mohammed Siddig H.
    Alhawsawi, Abdulsalam M.
    Aljohani, M. S.
    Damoom, Mohammed M.
    Banoqitah, Essam M.
    Elmoujarkach, Ezzat
    Powiązania:
    https://bibliotekanauki.pl/articles/2105331.pdf
    Data publikacji:
    2022
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    prompt gamma ray
    sealed sources
    radiotracers
    industrial process
    Opis:
    Radioisotope applications in industrial process inspection and evaluation using gamma-ray emitters provide otherwise unavailable information. Offering alternative gamma-ray sources can support the technology by complementing sources’ availability and radiation safety. This work proposes to replace gamma-ray from radioisotopes with prompt gamma-ray from the interaction of neutrons with stable isotopes injected into the industrial process or with the structural material of the industrial process equipment. Monte Carlo N-Particle Transport Code (MCNP5) was used to simulate the irradiation of two-phase fl ow pipes by 252Cf neutron source. Two simulations were run for each pipe, with and without mixing the liquid phase with the stable isotope 157Gd. The detected gamma-ray spectra were analysed, and images of the two phases inside the pipes were produced. The images were compared to images obtained from simulations of gamma transmission measurement using 60Co. Furthermore, results for prompt gamma computed tomography (CT) were presented and discussed. The studies’ outcomes indicate the potential of prompt gamma-ray to carry out the sealed sources applications of gamma transmission measurements and imaging.
    Źródło:
    Nukleonika; 2022, 67, 1; 11--18
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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