physics papers | Gist.Science

Radiation Protection: the experience of the Integrated Laboratory of Radioactivity Measurement and Monitoring of the ENEA Radiation Protection Institute

The ENEA Integrated Laboratory of Radioactivity Measurement and Monitoring leverages its extensive equipment and specialized expertise to perform comprehensive environmental and internal dosimetry analyses of diverse radionuclides across its centers in Saluggia, Casaccia, and Trisaia, ensuring accuracy through continuous intercalibration.

Sandro Ridone, Dolores Arginelli, Maria Chiara Botta, Daniela Gorietti, Francesco Modestia, Davide Pirullo, Salvatore Zi (…)2026-07-07

🔬 physics

Simultaneous Production of Molybdenum-99 and Actinium- 225 using Indonesia Research Reactor (RSG-GAS)

This study demonstrates that Indonesia's RSG-GAS research reactor, utilizing a modified low-enriched uranium electroplating capsule, can simultaneously produce Molybdenum-99 and enhance Actinium-225 yields to 4.3 GBq through optimized irradiation and multiple milking cycles.

Amila Amatullah, Naoyuki Takaki2026-07-07

🔬 physics

Machine Learning Classification for Irradiated Material Gamma Ray Spectra

This study demonstrates that a robust machine learning framework, featuring a five-step detector-agnostic preprocessing pipeline and dimensionality reduction, achieves perfect classification accuracy for both single-isotope and complex irradiated material gamma-ray spectra across NaI(Tl), CZT, and HPGe detectors, with only minor performance drops observed in specific high-resolution scenarios.

A. Robb Taylor, Steven R. Biegalski, Derek Haas, Khiloni Shah, Kohlton Mathis, Joseph Lapka, Sarah Castro2026-07-07

🔬 physics

Dispersion Characteristics of Transverse Surface Waves in a Functionally Graded Piezoelectric Half-Space with a Triple Dielectric Overlayer System: Effects of Material Ordering, Substrate Grading, and Thickness Allocation

This study presents an exact analytical formulation for transverse surface waves in a functionally graded piezoelectric half-space with a triple dielectric overlayer, revealing how material ordering, substrate grading, and thickness allocation serve as independent design parameters to precisely tailor wave dispersion and electromechanical coupling characteristics.

Aydin Ozbey, Erol Uzal2026-07-07

🔬 physics

A Highly Sensitive Surface Plasmon Resonance Biosensor Using Hybrid Dielectric and 2D Materials for Tuberculosis Diagnosis

This study proposes and optimizes a highly sensitive surface plasmon resonance biosensor utilizing a hybrid structure of boron nitride, barium titanate, black phosphorus, and copper on a BK7 prism to achieve exceptional detection performance for tuberculosis biomarkers in blood plasma.

Hiba bouandas2026-07-07

🔬 physics

Composition independent neutron scattering corrections for quantitative imaging

This paper introduces a dual-detector setup that enables composition-independent neutron scatter correction, transforming neutron tomography from a qualitative visualization tool into a quantitative analysis method for heterogeneous, dynamic systems containing strong scatterers by reducing systematic errors in concentration measurements from 17% to 2% without requiring sample-dependent calibration.

Oriol Sans Planell2026-07-06

🔬 physics

Exploration of Stability for SnTl Liquid Alloys at Various Temperatures

This study employs the quasi-lattice theory, combined with Butler and Moelwyn-Hughes models, to predict the thermodynamic, structural, surface, and transport properties of molten Sn-Tl alloys, revealing that their stability and segregation decrease with rising temperature while suggesting a potential transition from segregation to ordering at approximately 1914.15 K.

Rajendra Prasad Chaudhary, Anadi Prasad Singh, Ishwar Koirala, Nabin Kumar Roy, Jagdhar Mandal, Indu Shekhar Jha2026-07-06

🔬 physics

Interfacial contact topology governing molten iron–slag dripping in coke-packed beds under hydrogen-enriched blast furnace conditions

This study utilizes dynamic multiphase simulations to demonstrate that interfacial contact topology, particularly the ratio of slag–coke to iron–coke contact areas, significantly governs molten iron–slag dripping behavior and phase separation in hydrogen-enriched blast furnace coke-packed beds.

Tatsuya Kon, Shungo Natsui, Ko-ichiro Ohno2026-07-06

🔬 physics

Predicting spacecraft surface degradation under atomic oxygen in Low Earth Orbit

This paper presents a first-principles multiscale framework that successfully predicts both the erosion yields and evolving surface microstructures of spacecraft materials exposed to atomic oxygen in Low Earth Orbit by linking atomic-scale reactive molecular dynamics simulations with a macro-scale statistical surface model.

Sabin-Viorel Anton, Christian Siemes, Othonas A. Moultos, Jose van den IJssel, Pieter N.A.M. Visser2026-07-06

🔬 physics

Mechanism-Dependent Scaling in Porous Materials

This paper proposes a mechanism-dependent framework for porous materials, identifying that the ratio of mechanical to transport density-scaling exponents is typically near two in bending- or stability-dominated systems where transport is connectivity-controlled, while acknowledging deviations in stretching-dominated or anisotropic architectures.

Miguel Jorge Díaz Luna2026-07-06✓ Author reviewed ⓘ

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