Forthcoming Articles

International Journal of Nuclear Energy Science and Technology

International Journal of Nuclear Energy Science and Technology (IJNEST)

Forthcoming articles have been peer-reviewed and accepted for publication but are pending final changes, are not yet published and may not appear here in their final order of publication until they are assigned to issues. Therefore, the content conforms to our standards but the presentation (e.g. typesetting and proof-reading) is not necessarily up to the Inderscience standard. Additionally, titles, authors, abstracts and keywords may change before publication. Articles will not be published until the final proofs are validated by their authors.

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International Journal of Nuclear Energy Science and Technology (3 papers in press)

Regular Issues

  • Comparison of TRIGA reactor steady-state thermal-hydraulic predictions by COMSOL multiphysics with experimental data   Order a copy of this article
    by Ahmed K. Alkaabi, Jeffrey King 
    Abstract: This paper presents United States Geological Survey TRIGA one- and multiple-channel thermal hydraulic (TH) models developed using the COMSOL code to examine the effects of coolant cross-flow on coolant, cladding, and fuel temperatures. There are considerable variations in the profiles of the coolant axial temperatures and outlet temperatures as predicted by multiple-channel model from those predicted by the one-channel model. The one-channel model forecasts that the temperature of the coolant within the fuel rings increases axially with the height of the core, whereas the temperature of the coolant predicted by the multiple-channel model increases as a function of core height in the B-, C-, and D-rings, peaks and then reduces within the E-, F-, and G-rings. Within the multiple-channel model, the coolant appears to flow from the cores outermost opening at the lower side to the centre of the core. Finally, predictions of all models are benchmarked with the experimental data.
    Keywords: TRIGA reactors; multiple-channel models; thermal hydraulic analysis.

  • Effect of nanovoids on the displacement cascades and mechanical properties in INCOLOY-800H: A molecular dynamics study   Order a copy of this article
    by M. Mustafa Azeem 
    Abstract: Nickel-based alloys are candidate materials for high-temperature applications due to their excellent corrosion resistance and mechanical properties than zirconium alloys. However, they are susceptible to the formation of voids and defects at the interfaces between two metallic layers. We have used molecular dynamics simulation to study the interaction of nanovoids created at the multi-layered metallic composite (MMLC) interfaces. We considered the INCOLOY 800H-Ni MMLC as the model material and investigated the effect of nanovoid of different sizes (r~1-4nm) at the interfaces under simulated at 1000K. The collision cascade is simulated by performing 1, 5, and 10 keV randomly selected primary knock-on atoms (PKA) in the Incoloy part. We investigated the evolution of damage cascades at the interface, revealing the presence of a critical nanovoid size below which the nanovoids are not stable under irradiation, i.e., rcritical 2 nm. The damage cascade profile is independent of the incident energy of PKA. The presence of nanovoids at the interface act as a sink for radiation defects.
    Keywords: molecular dynamics; nanovoids; irradiation; mechanical properties.
    DOI: 10.1504/IJNEST.2023.10059803
     
  • Estimation of absorbed dose in human organs for holmium-166 radiosynovectomy using MCNPX   Order a copy of this article
    by Sara Vosoughi, Mohsen Mehrabi, Samaneh Zolghadri, Nafise Salek, Hassan Yousefnia 
    Abstract: In this study, dosimetry calculations of the radionuclide Holmium-166, used in radiosynovectomy, were performed using MCNPX simulation code and the MIRD method The primary objective of this research is to evaluate the absorbed dose in the target tissue (synovial epithelial cells), critical tissues (synovial tissue, articular cartilage, joint capsule, and bone), and other vital human organs during radio-synovectomy treatment The depth-dose profile within the synovial joint revealed that the highest absorbed dose was concentrated in the superficial layers of the synovium, with a significant decrease in dose as depth increased These results confirm that the radiation is well-focused on the target tissue, while the dose to surrounding healthy tissues remains within a safe threshold Furthermore, the absorbed dose in other organs (such as the liver, kidneys, and spleen) was found to be negligible Validation of the calculations was conducted by comparing the values obtained from MCNPX with the reference values ICRP89. The close agreement between the results confirms the accuracy of the simulation approach and the reliability of the findings. This study demonstrates that radiosynovectomy using 166Ho is a safe and effective method for treating synovitis. The radiation is wellconcentrated within the target region, minimising exposure to healthy tissues. These findings can help optimise treatment planning, reduce side effects, and ultimately improve clinical outcomes for patients.
    Keywords: radiosynovectomy; Ho-166; dosimetry; MCNPX; MIRD; ORNL phantom; depth-dose profile.
    DOI: 10.1504/IJNEST.2026.10081187
     

 

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