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Nuclear Analysis
Scopus
ISSN 2773-1839 · KeAi Communications Co., Ltd. · 109 artikel di indeks
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Artikel Jurnal
Dead layer characterization of a well-type HPGe detector by iterative Geant4 Monte Carlo adjustment: from constant to variable thickness profiles
Accurate modelling of the dead layer is essential for reliable Monte Carlo efficiency calculations of HPGe detectors, in particular at low γ energies. In this work, an iterative Geant4 approach was applied to characterize the effective dead-layer distribution of a well-type HPGe detector using…
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Artikel Jurnal
Radiological hazard assessment and statistical analysis of radionuclides in the soil samples of Raparin region, Iraq
Soil samples from the Raparin region of Iraqi Kurdistan were analyzed to determine natural radionuclide concentrations and assess the associated radiological hazards. Monitoring indoor and outdoor radioactivity is essential for evaluating potential health risks and developing mitigation strategies…
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Artikel Jurnal
Geant4-based optimization of neutron–gamma shielding for the IR-IECF device
Inertial electrostatic confinement fusion (IECF) devices generate a mixed radiation field consisting of 2.45 MeV D–D neutrons and secondary gamma rays, which requires carefully optimized shielding for safe laboratory operation. In this study, the IR-IECF device was modeled using Geant4 based on its…
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Artikel Jurnal
Integrated neutron backscattering–gamma scanning for diagnosing laboratory-scale unit column
This study evaluates neutron backscattering for diagnosing a laboratory-scale pilot column and compares its performance with gamma scanning on the same device. A 127-cm-diameter column was investigated using a Co-60 source with a NaI(Tl) detector for gamma scanning and an Am-Be source with a He-3…
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Artikel Jurnal
High-resolution Monte Carlo investigation of the spatial distribution of neutron and photon absorbed doses in a polyethylene shuttle for soil sample irradiation
The accurate characterization of mixed neutron–photon radiation fields generated during neutron irradiation of environmental samples is essential for dosimetric optimization and radiological protection in activation analysis facilities. In the present work, a Monte Carlo simulation study was…
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Artikel Jurnal
Evaluation of indoor and outdoor radiological health hazards for manufactured sands of Tamil Nadu, India
This study evaluates the natural radioactivity levels and radiological hazards of manufactured sand (M-sand) collected from Tamil Nadu, India, using high-resolution gamma-ray spectrometry. Twenty M-sand samples were analyzed to determine the activity concentrations of 226Ra, 232Th, and 40K. From…
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Artikel Jurnal
Analysis neutronic performance of the GAMA microreactor heat pipe
Attention to developing nuclear microreactors has increased because of their simple designs, fast construction, high safety level, flexible operation modes, and capability to operate for special needs in remote locations. GAMA Microreactor Heat Pipe (GAMA-MRHP) is a microreactor with megawatt…
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Artikel Jurnal
Tracing rare earth elements for nuclear forensics signatures in Mpumalanga province, South Africa
The original assessment of the nuclear material is the primary objective of nuclear forensics. Among various signatures, rare earth elements (REEs) have proven to be highly significant in identifying uranium deposits, owing to their consistent patterns under varying geochemical conditions. In this…
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Artikel Jurnal
Feasibility of Simultaneous 152Eu and 154Eu radioisotope production from natural europium for gamma spectrometry calibration
In this study, the feasibility of producing two radioisotopes, 152Eu and 154Eu, through irradiation of natural europium was investigated using the MCNPX 2.6 code and MATLAB computational software. 152Eu and 154Eu radioisotopes are used as standard radioactive sources in industrial and research…
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Artikel Jurnal
Cross-Influence of natural radioactivity and nuclear waste management in oil-rich regions: A case study of Ekakpamre community in Delta State, Nigeria
This study investigates the cross-influence of natural radioactivity and nuclear waste mismanagement in Ekakpamre, a petroleum-producing community in the Niger Delta region of Nigeria. The region, long associated with oil extraction and industrial discharges, faces increasing exposure to…
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Artikel Jurnal
Quantitative analysis of MMRTG power decay due to thermal inventory loss
The Multi-Mission Radioisotope Thermoelectric Generator (MMRTG) experiences electrical power decline due to Pu-238 decay and thermoelectric (TE) degradation. In this work, the contribution of Pu-238 decay is isolated and quantified by modeling thermal inventory loss as the sole aging mechanism. A…
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Artikel Jurnal
Evaluating the health impact of indoor radon concentration in laboratory environments: a focus on lung cancer risk
This investigation assessed indoor radon concentrations across 11 laboratories using CR-39 solid-state nuclear track detectors to measure alpha particle emissions. Following exposure, detectors were chemically etched in 6.25 N sodium hydroxide solution at 70.0 ± 0.5 °C for 8 h to visualize alpha…
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Artikel Jurnal
Estimating the uranium content in blood samples of healthy and cancer-affected women in the city center of Al-Muthanna governorate, Iraq
Uranium (U) is a heavy metal with chemical toxicity and radiological hazards. Chronic exposure, even at low concentrations, may contribute to serious health risks, including cancer. For this reason, it was necessary to measure the uranium content (UC) in blood samples of two groups of women…
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Artikel Jurnal
Determination of gadolinium in leachate by PGNAA
The determination of gadolinium in aqueous solution was carried out using a DT portable pulsed neutron generator and a ∅7.6 × 7.6 cm LaBr3 detector. The pulse mode of the acquisition process allows the separation of the registration of radiation capture, inelastic scattering and induced activity…
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Artikel Jurnal
New arrangements of FAs at BNPP's reactor: PPF and burnup calculations
In this work, the two assemblies named 16B36 and 36B20, and two arrangements named B and C, were introduced. The current arrangement of assemblies (named arrangement A) in the core of the BNPP reactor, was changed and the new assemblies were replaced, while the main characteristics of the core were…
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Artikel Jurnal
Polyvinyl alcohol composites (PVA) with added Pb, Bi, and Sn: A study on radiation shielding and gamma ray attenuation
Lead (Pb) is widely used for radiation shielding due to its high atomic number, density, affordability, and availability. However, its toxicity poses serious environmental and health risks. This study aims to evaluate the gamma-ray shielding performance of polyvinyl alcohol (PVA)-based shielding…
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Artikel Jurnal
Activity levels and radiological hazards of chemical fertilizers used for farm crops in Ondo city, Southwest, Nigeria
Fertilizers contain several radioactive elements of the decay series of 238U, 226Ra and 232Th and they can be a source of human exposure to gamma radiation when crops grown with fertilizers are consumed by human. The activity concentrations of 238U, 232Th and 40K in three brands of fertilizers were…
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Artikel Jurnal
Validation of ENDF/B-VIII.0 and NCrystal thermal scattering laws for graphite in criticality safety analysis using OpenMC
Accurate prediction of criticality in nuclear systems relies on high-fidelity nuclear data, particularly for thermal neutron scattering in moderating and reflecting materials. This study presents a comprehensive benchmarking analysis of two distinct thermal scattering law (TSL) treatments for…
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Artikel Jurnal
Assessment of soil radon-driven natural radioactivity and associated radiation dose in Central-Eastern regions of Morocco using AlphaGUARD
This study examines spatial variations in soil radon (222Rn) levels across four zones of the Central-Eastern parts of Morocco (Tikajouine, Imilchil, Itzer, and Aït Ayach). The AlphaGUARD PQ2000 PRO instrument was employed to evaluate radon concentration, exhalation rate, emanation coefficient, and…
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Artikel Jurnal
Nano-sisal fiber reinforced polymer composites for biocompatible lightweight structural applications
This research focuses on the mechanical and thermal characterization of nano-sisal fiber-reinforced polymer composites, exploring the potential of incorporating nanomaterials to enhance the performance of traditional sisal fiber composites. Natural sisal fibers (NSF) serve as the starting point for…