Most papers are machine-translated to English; some are originally in English.
Showing 50 of 313 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 …
The efficient removal of radioactive iodine from nuclear medicine wastewater is of great significance for radiation protection. Metal-organic frameworks (MOFs), owing to their tunable structural characteristics, have demonstrated considerable potential for iodine adsorption. In this study, a dataset…
Shape quantum phase transition is an important \textbf{and hot} topic in nuclear structure. In this paper, we begin to study the \textbf{finite-$N$} shape quantum phase transition in the SU3-IBM. In this new proposed model, \textbf{new} spherical-like \textbf{$\gamma$-soft} spectra was found to reso…
Hydrogen isotope (HI) retention poses a key issue for tungsten (W)-based plasma-facing materials (PFMs) in fusion devices, where microstructures such as dislocations (DLs) and grain boundaries (GBs) play a dominant role. Existing theoretical sink strength models for microstructures like DLs and GBs …
This paper presents the comprehensive design, multi-physics analysis of a 1.5 GHz TM020-type damping cavity, engineered for the harmonic RF system of a high-current, low-energy storage ring. While the TM020 mode exhibits inherent advantages for transient beam loading and compact higher-order mode (H…
Theoretical predictions on the optimal reaction energies are essential for producing superheavy elements (SHEs) beyond Og. Due to the limitation of the targets, synthesizing elements 119 and 120 will require beams of 50Ti and/or 54Cr ions. However, is it reliable to theoretically extrapolate from th…
Within the framework of the dinuclear system model, the synthesis of superheavy nuclei in the $^{48}$Ca, $^{50}$Ti, $^{51}$V and $^{54}$Cr induced reactions have been systematically investigated. The nucleus-nucleus potential and potential energy surface is calculated by the well-known Skyrme energy…
Prompt Gamma Neutron Activation Analysis (PGNAA) uses thermal neutron capture to execute isotopic analysis using characteristic gamma emissions. However, practical neutron sources mostly emit fast neutrons, and efficient thermalization is required to enhance signal quality and analytical accuracy. T…
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…
Burnup credit reduces the estimated value of $k_{eff}$ in spent fuel criticality safety assessments by accounting for changes in nuclide composition during the burnup process; however, uncertainties in the sample bias of nuclide compositions affect the accuracy of criticality calculation results. To…
An X-ray diode (XRD) diagnostic system based on electron pulse time-dilation and energy compensation has been presented. A temporal magnifier is used for dilating the temporal width of electron pulse to significantly improve the temporal resolution. An energy compensation is performed using a time c…
Precise control and characterization of coating thickness are critical for ensuring the reliability and safety integrity of zirconium alloy claddings used in nuclear reactors.However conventional thickness measurement techniques are often limited by destructive testing requirements, low efficiency, …
The automatic identification of radionuclides is essential for remote, unmanned monitoring and the rapid detection of radioactive contamination. While deep learning techniques have significantly enhanced recognition accuracy, their "black-box" nature and reliance on large-scale datasets pose challen…
In recent years, there have been fewer missions to detect neutrons in low Earth orbits (LEO), and the data obtained have been extremely limited. Studying the distribution of the neutron energy spectrum in LEO satellites through detection can help solve three major scientific problems: the source of …
A conventional local bump injection system with four pulsed dipole kicker magnets is currently adopted in the Hefei Light Source II storage ring to achieve top-off operation. Owing to the multipole magnets located inside the injection section, it is difficult to form a perfect closed bump during bea…
In tomographic gamma scanning (TGS) emission measurements, conventional methods typically compute efficiency calibration and trajectory length separately, which leads to reduced overall computational efficiency.Our analysis reveals a spatial consistency between the efficiency calibration and traject…
Lead-bismuth fast reactors have broad application prospects in the field of marine power. The thermal-hydraulic characteristics of Lead-Bismuth Eutectic (LBE) under marine conditions have a significant effect on the reactor safety. A new scaling analysis method for the LBE natural circulation under …
This paper presents a novel pixel chip readout scheme: the Region-of-Interest Readout Circuit (ROIRC), which is designed for large area, large array pixel chips and Gas Pixel Detector (GPD). This design employs a sentinel pixel detection strategy, enabling rapid identification and prioritized readou…
Data acquisition (DAQ) systems face significant challenges in addressing the high-throughput and real-time processing demands of next-generation nuclear and particle physics experiments. Generic platforms offer solutions to reduce costs and improve efficiency but require innovations to address heter…
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…
Accurate spallation–neutron source terms are essential for accelerator–driven systems (ADS), yet double–differential cross–section (DDX) measurements remain sparse—particularly for proton–$^{nat}$Pb, a canonical ADS target. We present a data–driven pathway from sparse measurements to dense DDX using…
Organic-inorganic hybrid perovskite single crystals have shown great potential as next-generation high-sensitivity X-ray detectors. However, the thermodynamic instability of their precursor solutions often leads to disordered nucleation and defect proliferation during crystallization, which consider…
As the semiconductor industry advances toward nodes below 7 nanometers, critical dimension small-angle X-ray scattering (CD-SAXS) has become a vital technology for the quantitative measurement of nanoscale deviations. This study investigates the effects of X-ray beam size and photon energy on the pr…
Rotational computed laminography (CL) has broad application potential in three-dimensional imaging of plate-like objects, as it only needs x-ray to pass through the tested object in the thickness direction during the imaging process. In this study, a rectangular cross-section field of view rotationa…
This study systematically investigates smelting decontamination technology and recycling strategies for radioactively contaminated steel. The decontamination process involves both the crystalline and molten phases, where the molten stage facilitates the complexation of decontaminants with radionucli…
The Shanghai High Repetition Rate XFEL and Extreme Light Facility (SHINE) is a high-frequency hard X-ray free-electron laser (FEL) facility with a maximum repetition rate of 1 MHz, delivering photon energy from 0.4 to 25 keV. A critical component of SHINE is the superconducting module. Given the com…
The β-delayed neutron emission probability (Pn) is an indispensable quantity to describe the decay strength of very neutron-rich nuclei and the rapid neutron capture process in nuclear astrophysics. A Long HElium-3 Neutron Array (LHENA), is developed at the Beijing Rare Isotope Facility (BRIF) to in…
The extraction of uranium from seawater is crucial for sustainable nuclear energy but remains challenging due to low concentration, carbonate competition, and energy-intensive processes. Herein, this study developed and systematically evaluated a novel electrode material, CF@MTPN, coupled with the e…
A solenoid is typically used in normally conducting and superconducting radio frequency (SRF) photoinjectorsto compensate for the projected transverse beam emittance. In the ELBE SRF Gun-II, a superconductingsolenoid is positioned inside the gun cryomodule approximately 0.7m from the end of the gun …
The medium modification of jet substructure in hot and dense nuclear matter has garnered significant interest from the heavy-ion physics community in recent years. Measurements of inclusive jets show an angular narrowing in nucleus-nucleus collisions, while recent CMS results for photon-tagged jets …
This paper presents new data analysis algorithms for identifying the mass number and calibrating the time of flight ($TOF$) for secondary beams produced via projectile fragmentation at incident energies of several hundred MeV per nucleon. The algorithms need only conventional measurements of $TOF$ i…
Uranium tailings harbor the long-lived, highly biotoxic radionuclide 210Pb alongside associated heavy metals, posing persistent environmental risks. However, comprehensive systematic studies into the leaching mechanisms, kinetics, and interaction of key environmental factors on 210Pb release under s…
Over the last few years, 3D radiation sensors have been developed in High Energy Physics (HEP) experiments and other fields such as microdosimetry in proton and ion therapy. Due to their unique architectural design, 3D sensors offer radiation tolerance and fast signal response at relatively low bias…
This paper quantitatively discusses the influence of well contact on Single Event Transient (SET) in sub-20 nm FinFET by Two-Photon Absorption (TPA) pulse laser. Two groups of inverter chains were designed to investigate the impact of well contact distance on the FinFET process. The experimental res…
To address the stringent requirements for real-time performance, reliability, and flexible protection in the complex operational environments of proton accelerators, this study proposes a layered interlock and defense-in-depth system that integrates PLC-based hardware interlocks, EPICS-based softwar…
Linear accelerator of the injector of the synchrotron radiation facility SKIF (SRF SKIF) was successfully commissioned. Maximum klystron power values of 50 MW were obtained, including klystrons developed at Budker Institute of Nuclear Physics of Siberian Branch of Russian Academy of Sciences (BINP S…
An 8-channel time-to-digital converter (TDC) with high precision and linearity designed for the electromagneticcalorimeter (EMC) in the Super Tau-charm Facility (STCF) is presented. A 3-level quantization structureis employed in the proposed TDC to achieve high time resolution and wide dynamic range…
In nuclear decommissioning scenarios, determining the distribution of radiation doses in the spatial domain, especially the location of high-dose areas, plays an important role in monitoring nuclear decommissioning facilities. The conventional method is to perform interpolation between measurement p…
Muon scattering tomography has emerged as a prominent research direction in recent years, showing great potential in various applications such as cargo inspection and nuclear material detection. An increasing number of studies have highlighted the critical importance of incorporating muon momentum i…
In this study, a compact X-band dual-mode electron linear accelerator (linac) was developed for medical radiotherapy, which is capable of generating both 100mA/6MeV beams for X-ray radiotherapy (low-energy mode) and 10 mA/13.5MeV beams for electron radiotherapy (high-energy mode). The dual-mode lina…
In this work, a microscopic effective nucleon-nucleon interaction based on the Dirac-Brueckner Hartree-Fock G matrix starting from a bare nucleon-nucleon interaction is used to explore the α-decay half-lives of the nuclei near N = Z line.
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…
A high-performance low-level radio frequency (LLRF) control system based on a Zynq MPSoC platform has been developed for the digital and intelligent upgrade of the Shanghai Soft X-ray Free-Electron Laser (SXFEL). The system integrates eight 16-bit, 310-MSPS analog-to-digital conversion channels and …
There is a contradiction between the evolution rate of materials and the time resolution of SR-CT characterization in the in situ synchrotron radiation computed tomography (SR-CT) characterization of ultrafast evolution process. The sampling strategy of the ultra-sparse angle is an effective method …
We present CombineFit, a novel approach for estimating the signal number in low-statistics measurements. Traditional binned maximum likelihood and template fitting techniques often suffer from significant bias and increased uncertainties when the statistics of templates or target data are limited. C…
The influence of spin–orbit coupling strength ($W$) on the structure and two-proton ($2p$) radioactivity of $^{18}$Mg is investigated using the spherical Skyrme–Hartree–Fock–Bogoliubov (SHFB) approach with the SLy4 interaction and a mean-field cluster potential model. Our calculations reveal that in…
Inspired by recent research on the $p \Omega$ and $p \bar{\Lambda}$ systems, we investigate the $p \bar{\Omega}$ systems within the framework of the quark delocalization color screening model. Our result indicates that the nucleon-$\bar{\Omega}$ interaction is slightly stronger than the nucleon-$\Om…
Single-crystal chemical vapor deposition (CVD) diamond is a promising material for radiation detectors operating in extreme environments, owing to its outstanding radiation hardness. As nuclear and high-energy physics applications demand particle detectors that withstand higher radiation fluences, u…
