Nuclear Science and Technology Research Institute

Radiation dose analysis in the IR-IECF device: numerical analysis with geant4 simulation and experimental measurements

This study presents a combined experimental and Geant4-based assessment of the radiation field and shielding performance of the Iranian Inertial Electrostatic Confinement fusion device (IR-IECF) operating in deuterium–deuterium (D–D) mode and producing 2.45 MeV neutrons. A detail...

Safety assessment of a loss-of-pool-water accident in the spent fuel storage of a high-power research reactor

As research reactors undergo power uprates to enhance medical isotope production and materials testing, higher fuel burnup and elevated decay-heat levels significantly reduce the thermal margins of spent fuel storage facilities under postulated accident conditions, necessitating...

Treatment-dependent responses of Opuntia ficus-indica to electron-beam-irradiated superabsorbent polymer, zeolite, and biostimulants at a reduced soil-water target

A reduced soil-water target may constrain cactus-pear establishment, but the responses to combinations of water-retentive amendments and biostimulants remain uncertain. In a 90-day greenhouse experiment, five physicochemical regimes (none, electron-beam-irradiated superabsorbent...

A review of synthetic strategies for macrocyclic bifunctional chelators in molecular imaging and radiopharmaceutical applications

Metal complexes play indispensable roles in modern medicine, underpinning diagnostic techniques such as magnetic resonance imaging and nuclear imaging, as well as targeted radionuclide therapy. Their clinical success relies on chelators that form thermodynamically stable and kine...

Mapping natural radionuclide distribution and assessing radiological hazards in soils from an iron ore mine

Abstract Natural radionuclides such as 226 Ra, 232 Th, and 40 K are widely distributed in geological materials and may pose significant radiological risks when concentrated in mining environments. Iron ore mining activities can enhance the redistribution and accumulation of these...

Electron-irradiated superabsorbent polymers enhance soil water retention, ion homeostasis, and yield resilience of wheat across a salinity gradient

Soil salinity restricts wheat productivity by reducing water availability, disrupting ion homeostasis, and impairing physiological and reproductive processes. Superabsorbent polymers can improve soil water retention, but the agronomic value of electron-irradiated SAPs relative to...

Transcriptomic changes in tomato plants infected with ToBRFV after cold air glow discharge plasma treatment

Tomato brown rugose fruit virus (ToBRFV) is an emerging tobamovirus that poses a serious threat to global tomato production. In this study, we evaluated the potential of cold air glow discharge plasma (CAGDP) as a seed treatment to mitigate ToBRFV infection and induce systemic re...