Most papers are machine-translated to English; some are originally in English.
Showing 50 of 164 papers in Physics
Based on the general principles of "Zong Yi Ning Qi" (宗漪凝契)—specifically the core framework of "topology as the root, wave as the soul, and the three identities across three realms"—this paper focuses on black holes as extreme spacetime celestial bodies to construct a unified mathematical model of "…
Based on the "Gravity-Pressure Model," this paper proposes a unified framework spanning philosophy and astrophysics, aiming to provide an integrative reinterpretation of the three fundamental concepts: time, space, and entropy. The model is constructed upon three mutually supporting pillars: First, …
Based on a unified non-perturbative quantum gravity framework, this paper systematically elaborates on the cross-scale universality of quantum gravity correction terms containing logarithmic components. At the microscopic scale of black holes, these terms dynamically resolve singularities through a …
This paper proposes a novel non-perturbative quantum gravity framework based on quantum topological structures. By introducing "quantum vortices" to characterize the topological order of statistical averages of microscopic particles and embedding the AdS/CFT holographic duality, black hole singulari…
The energy correlation between prompt fission neutrons has not yet been fully considered in coincidence measurement and multiplicity measurement techniques. To accurately measure and systematically verify this correlation characteristic, this project conducted a specialized experiment lasting approx…
In nuclear decommissioning scenarios, the distribution of radiation doses is typically unknown. To understand the current radiation status during monitoring tasks at nuclear decommissioning facilities, it is crucial to generate continuous and visualized radiation dose distribution images. Convention…
Physical space is the only medium for light propagation; air, water, glass, etc., are not. Atomic nuclei within these “medium” curve the surrounding physical space, causing photons to follow curved trajectories at the microscopic level during propagation. Meanwhile, the light speed (magnitude) remai…
The Ge-doped GaNb4Se8 polycrystalline samples were synthesized by solid-state reaction method. Zero resistance transitions were observed in one batch of samples with the highest onset superconducting Tc at 45 K. This discovery may demonstrate a new class of Nb-based high-Tc superconductors arising f…
Traditional liquid scintillation measurement instruments face challenges in field measurements of radon in water: their bulky size and reliance on a stable power supply hinder the on-site analysis of large numbers of water samples. To address this, the study aims to develop a portable liquid scintil…
The Jiangmen Underground Neutrino Observatory (JUNO), a 20~ktons low-background Liquid Scintillator detector (LS), was primarily designed to determine the neutrino mass ordering. JUNO requires UltraPure Water (UPW) with a $^{226}$Ra concentration $<$50~$\mu$Bq/m$^3$ due to the direct liquid-liquid c…
The neutron-rich nucleus 22C, located at the neutron dripline, exhibits intriguing structural properties, such as its Borromean nature and potential two-neutron halo configuration. Despite experimental advancements, uncertainties persist in the energy of two-neutron separation S2n and the radius of …
Transmission neutron spectra from a pure 238U slab sample (dimensions: 100 mm × 100 mm × 20 mm) bombarded by broad-spectrum neutrons were measured at 0° using the time-of-flight method. The experiment was carried out at the Radioactive Ion Beam Line of the Heavy Ion Research Facility in Lanzhou at t…
Cosmogenic muon-induced radioactive isotopes pose a significant background source for deep-underground low-background experiments. Although rock overburdens at underground sites substantially attenuate the cosmogenic muon flux, residual muon-induced backgrounds still require active suppression. For …
It is widely accepted that neutrino oscillation implies a non-zero mass for neutrinos. However, to date, no other conclusive experimental evidence has definitively confirmed their mass. If neutrino oscillations originate from the intrinsic properties of neutrinos themselves, then postulating that ne…
Three-quasiparticle K-isomeric states in odd-mass N=106 isotones within the A~180 mass region are systematically investigated using configuration-constrained potential energy surface calculations. The calculations successfully reproduce the excitation energies and deformations of known high-K isomer…
On-chip particle accelerators, especially dielectric laser accelerators utilizing the inverse Cherenkov effect (ICR-DLAs), show great potential for next-generation compact applications. However, single-sided laser-driven ICR-DLAs suffer from two key drawbacks: (1) The achievable acceleration gradien…
Very Large Area gamma-ray Space Telescope (VLAST) is the next-generation flagship space observatory for high-energy gamma-ray detection proposed by China. The observation energy range covers from MeV to TeV and beyond, with acceptance of 10 m^2sr. The calorimeter serves as a crucial subdetector of V…
To assess the steam generator tube rupture (SGTR) accident scenario under compromised safety systems (e.g., post-earthquake conditions), as specified in the OECD/NEA/CSNI International Standard Problem (ISP) No. 52 project, a full-scale facility model was developed using the RELAP5 thermal-hydraulic…
The irradiation response of pure and nitrogen-doped 6H-SiC single crystal was investigated after low-fluence neutron irradiation at 30~60°C. Internal Friction, X-Ray Diffraction, Raman spectroscopy and Transmission Electron Microscopy were used to study the microstructural changes. Neutron irradiati…
The uniform distribution of U3O8 particles within an aluminum matrix is crucial for the optimal performance and safety of plate-type nuclear fuel produced by the dispersion technique. X-ray radiography is one of the methods employed to inspect the homogeneity of U3O8-Al dispersion fuel plates. This …
This study constructs a hybrid module with a multi-material collaborative detection architecture by integrating silicon pixel layers into the longitudinally segmented scintillating fiber sampling calorimeter module and optimizes the placement of the silicon layers. The module utilizes the pre-shower…
The mechanism and the observables (including cross section, angular distribution, energy spectrum and double-differential cross section) for the p+$^{28}$Si reaction below incident energy 200 MeV are systematically studied. A set of optimal global optical potential parameters for proton is obtained …
Consciousness is considered the most challenging problem in the science of the mind, especially Chalmers' hard problem. From the standpoint of systems science philosophy, many consciousness theories overlook the structure-function correlation principle, thereby reducing their explanatory power regar…
Massive stars are significant sites for the weak s-process (ws-process). 22Ne and 16O are, respectively, the main neutron source and poison for the ws-process. In the metal-poor stars, the abundance of 22Ne is limited by the metallicity, so that the contribution of 22Ne(α, n)25Mg reaction on the s-p…
Production of pulsed neutron sources from petawatt-class femtosecond laser interacting with pitcher-catcher target is studied by comprehensively using radiation hydrodynamic, particle-in-cell and monte-carlo simulations. We find that the preplasma from the ablation of laser prepulse is beneficial fo…
This study explores the performance of Ice Bed Condensers (IBC) in controlling hydrogenrelated hazards during severe accident progression in PWR reactor under a prolonged Station Blackout (SBO) scenario. Simulations using MELCOR 1.8.6 reveal that during the in-vessel phase, zircaloy oxidation begins…
Aerial survey is a dynamic and continuous process, and variations in ground elevation within the survey area lead to issues such as overlapping measurement zones and inaccurate altitude correction during the survey process. Commonly used terrain correction methods are based on the concept of finite …
To address issues such as radiation exposure risks and limited experimental flexibility inherent in traditional nuclear experiments relying on radioactive sources, this study proposes a high-safety analog nuclear signal generator based on an FPGA (Field Programmable Gate Array) and DAC (digital-to-a…
The Southern Advanced Photon Source (SAPS) is a diffraction-limited synchrotron light source under design, which employs longitudinal injection as its primary injection scheme. This kind of injection scheme requires that the injected beam has a short bunch length and low emittance, and the preferred…
The mirror energy difference (MED) of the mirror state, especially for states bearing the Thomas-Ehrman shift, serves as a sensitive probe of isospin symmetry breaking. We employ the Gamow shell model, which includes the inter-nucleon correlation and continuum coupling, to investigate the MED for $s…
This work presents a detailed, benchmarked evaluation of the reactivity worth of top beryllium shim plates in the Nigerian Research Reactor-1 (NIRR-1) following conversion from highenriched uranium (HEU) to low-enriched uranium (LEU) fuel. Multigroup cross sections were generated with WIMS-ANL and c…
We present the results of an experiment conducted to measure cosmic-ray muons and muon-induced fluxes at the China Jinping Underground Laboratory. Utilizing a 28-liter 0.5% gadolinium-doped liquid scintillator detector, which operated stably for 412 days in a 1-meter-thick polyethylene shielding, we…
Muon scattering tomography utilizes the penetrating ability of cosmic ray muons for non-destructive detection of materials inside shielding layers, with applications in geophysical exploration and homeland security. Trajectory reconstruction is essential for muon scattering tomography. High-precisio…
This paper proposes a novel nuclear reaction mechanism—Quantum Gravity Modulated Neutron Superfluid Reaction (QGM-NSR). This mechanism hypothesizes that strong gravitational fields (for example, gravitational fields simulated in high-energy accelerators or inside neutron stars) induce a neutron supe…
It transforms the passive role of "time as an evolution parameter" by treating proper time (τ) as the dependent variable to inversely derive motion velocity, gravitational field strength, and mass distribution from observed time differences (e.g., Δτ/Δt). It defines the time flow ratio between diffe…
By introducing the path subspace, this study extends the energy phase space to a digital phase space ($\Lambda$ space), thereby completing the digital statistics of elastic particle equilibrium systems. Unlike the $\Gamma$ phase space (6N-dimensional) of the Gibbs statistical ensemble, the $\Lambda$…
The technique of Bρ-defined isochronous mass spectrometry (Bρ-IMS), established at a storage ring, serves as a valuable tool for determining the masses of short-lived nuclei. In the previous Bρ-IMS experiments, the effects of magnetic field drifts have to be corrected in order to improve the mass re…
In high-energy physics~(HEP) experiments, visualization software plays a pivotal role in detector design, offline software development, and event data analysis. The visualization tools integrate detailed detector geometry with complex event data models, providing the researchers with invaluable insi…
The anisotropic diffusion of irradiation defects in α-uranium (α-U) has been investigated using classical and nonequilibrium molecular dynamics methods, with the aim of better understanding the complex response of the microstructure to irradiation damage, which depends on temperature and internal st…
Accurate measurement of the activities of α/β radionuclides in environmental samples is critical for environmental radiation monitoring. Traditional α/β discrimination methods for dualscintillator detectors primarily rely on the amplitude, width, and rise time of the pulse from the detector, often l…
The next-generation Molten Salt Reactor (MSR) utilizes a liquid-fuel system, in which fissile material is dissolved in high-temperature molten salts. This dual-purpose medium acts as both fuel and primary coolant, offering exceptional thermal stability and inherent safety features. However, MSR pose…
To bridge the theoretical gap in the analysis of neutron flux density distributions within annular reactors, this study derives closed-form solutions for the neutron flux density under critical conditions based on the monoenergetic neutron diffusion equation and validates them using MCNP5 simulation…
Neutron CT imaging offers unique advantages in metal defect detection and cultural relic analysis, particularly for exploring internal structures of ancient artifacts like writing knives, due to its high penetrability and hydrogen sensitivity. Accurate segmentation of its images is critical for defe…
X-ray and neutron computed tomography (CT) are widely used for non-destructive characterization of internal structures. Their distinct contrast mechanisms, arised from different interactions with matter, can enhance structural analysis when combined. Dual-modality imaging integrating both techniques…
Polarization-analyzed small-angle neutron scattering (PASANS) is an advanced technique that enables the selective investigation of magnetic scattering phenomena in magnetic materials and distinguishing coherent scattering obscured by an incoherent background, making it particularly valuable for cutt…
Abstract: For radioactive source localization, traditional Compton cameras are limited by the imaging field of view and low detection efficiency, resulting in slow response in complex environments. To address the limitations in the azimuthal sensitivity of conventional dual-layer scintillator detect…
The initial collision geometry, including the reaction plane, is crucial for interpreting collective phenomena in relativistic heavy-ion collisions, yet it remains experimentally inaccessible through conventional measurements. Recent studies propose utilizing photon-induced processes as a direct pro…
This study investigates the synergistic effects of cryogenic temperatures and radiation exposure on aerospace components. Test chips were fabricated using a sub-20 nm bulk silicon FinFET process, primarily comprising ring oscillators and bandgap reference (BGR) circuits that incorporate parasitic ve…
In the High Energy FRagment Separator (HFRS) at the High Intensity heavy-ion Accelerator Facility, plastic scintillation detectors are used for high-precision time-of-flight (ToF) measurements to identify the secondary ions from the reaction between the primary beam and the target. During the day-on…
The discovery of physical laws has traditionally relied on human intuition, analytical reasoning, and experimental observation. However, modern physics research is increasingly constrained by numerous challenges, such as high specialization, fragmented workflows, and limited computational resources,…
