Temperature dependence of hydrogen isotope effect in LaNi5-H(D) system
March 2023
To study inverse effect of hydrogen isotopes in LaNi5 for hydrogen isotope separation at ambient temperature, temperature dependence of hydrogen isotope effect in LaNi5－H(D) system was investigated...
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Calibration of a PIXE system at Peking University
March 2023
A method combining particle-induced X-ray emission spectrometry (PIXE) and elastic backscattering spectrometry (EBS) was used to calibrate the PIXE system at Peking University. The selected thin standard...
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Mechanism study of bubble dynamics under the buoyancy effects
March 2023
The motion of a single bubble in a 2-D vertical channel filled with stagnant or moving fluid is simulated for various sets of conditions using the computational fluid dynamics(CFD) method. The volume...
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Mechanical properties and magnetic and electronic properties tuned via strain in two-dimensional non-van der Waals hematene
March 2023
Two-dimensional (2D) non-van der Waals hematene has increasingly attracted attention in the applications of photocatalysis, spintronic devices, and magnetic storage media. Mechanical properties as well...
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Quantitative estimation of tritium amount in surface layer and bulk of tungsten sample using BIXS
March 2023
Estimation of both the surface tritium and tritium in bulk in key materials of fusion reactors is of great importance for tritium safety and the management of tritium-contaminated material. For the...
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Sol-gel fabrication of porous ceria microspheres for thermochemical carbon dioxide (CO2) splitting
March 2023
Porous CeO2 has been of great interest recently, due to its great catalytic efficiency in splitting CO2 into CO and O2. Porous CeO2 microspheres are the key to scaling up such reactions in the fluidized-bed...
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Review: Pair distribution functions from neutron total scattering for the study of local structure in disordered materials
December 2022
With the development of pulsed spallation sources of neutrons in recent years has come the possibility to generate intense beams of higher energy than possible at reactor sources. This has enabled neutron...
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Complexes of bipyridinecarboxylate and phenanthrolinecarboxylate with trivalent actinides and lanthanides: Binding strength and structure
December 2022
The binding strengths of ligand 2,2ʹ-bipyridine-6-carboxylate (BiPCA) and 1,10-phenanthroline-2-carboxylate (PhenCA) with trivalent actinides (An) like Am(III) and Cm(III), and lanthanides (Ln) like...
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Review: Research progress on nanosecond laser irradiation damage of optical films
December 2022
Nanosecond laser irradiation damage of optical films is one of the main factors to limit the output power when the high power solid laser system is used to drive inertial confinement nuclear fusion....
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Study on the application of scintillation screen of Gd2O2S:Tb, F / gel glass in the X-ray imaging
December 2022
The transparency of scintillator screen has always been an important factor restricting the imaging performance. Here we present an innovative strategy, by combining the gel glass with GOS:Tb, F, we...
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Thermodynamics on the complexation of uranium (VI) with N-methylethylenediamine-N,N′,N'-triacetic acid in aqueous Solution: Potentiometry and microcalorimetry
December 2022
Stability constants and enthalpies of N-methylethylenediamine-N,N′,N'-triacetic acid (MEDTA, denoted as H3L) complexes with uranyl were measured using potentiometry and microcalorimetry, I = 1.0 mol L−1...
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Effects of Helium on the creep resistance of Er2O3 films
December 2022
The nanostructured Er2O3 thin films implanted by Helium (He) were prepared by magnetron sputtering under different He partial pressure. The creep properties of the Er2O3 films under different temperatures...
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Interaction between Gaomiaozi bentonite colloid and uranium
December 2022
In a deep geological repository system, the presence of clay colloids in the geological disposal medium is considered to be a potential factor promoting nuclide migration. In this study, Gaomiaozi bentonite...
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The neutron diffraction experiments under high pressure and high temperature on FENGHUANG diffractometer at CMRR
September 2022
FENGHUANG diffractometer at CMRR, a high-intensity multi-section neutron powder diffractometer, has been constructed to in situ studies of materials under high pressure high temperature conditions....
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Recent progress on mass spectrometric analysis of artificial radionuclides in environmental samples collected in Japan
September 2022
Mass spectrometry techniques, such as AMS, TIMS and ICP-MS, represent promising techniques for the analysis of artificial radionuclides in environmental samples. They are characterized by high sensitivity,...
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Double heterojunction CQDs/CeO2/BaFe12O19 magnetic separation photocatalysts: Construction, structural characterization, dye and POPs removal, and the interrelationships between magnetism and photocatalysis
September 2022
This novel double heterojunction carbon quantum dots (CQDs)/CeO2/BaFe12O19 magnetic separation photocatalysts (CCBFOMSPs) were successfully prepared via a polyacrylamide gel method and low temperature...
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Origin assessment of uranium ores using multivariate statistical method based on their rare-earth elemental parameters
September 2022
Origin assessment of nuclear materials is the key aim of nuclear forensics. Among the various fingerprints, rare-earth elements (REEs) are regarded as a powerful geological signature in authentication...
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Study on structure evolution of CoCrFeNi high entropy alloy in containerless processing using neutron diffraction
September 2022
Containerless processing is able to access the deeply supercooled regime due to the absence of heterogeneous nucleation sites, for example, container walls. Therefore, it allows us to explore a possible...
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Effects of reflected neutrons on the reactivity measurement of metal Assemblies
September 2022
The kinetic equation including the reflected neutron effect is established based on the time-dependent two-region kinetic model. Different reactivity measurement methods are simulated by using the equation....
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Development and performance of a secondary electron detector based on a MCP
September 2022
Secondary electron detector (SED) is a key component used in the fission product yield experiment to mark the start time of fission events. The signal to noise ratio and timing characteristics has an...
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Review: Current progresses of small-angle neutron scattering on soft-matters investigation
June 2022
A review of the recent works on soft-matters based on small-angle neutron scattering (SANS) is presented. This Review is intended to be a relatively comprehensive source for applying SANS on soft-matters...
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A method for quickly subtracting the contributions from 182Ta and 94Nb in activity measurement of 93mNb in reactor neutron environment
June 2022
Niobium is one of the most important neutron dosimeters used outside of the reactor. Owing to the fluorescence effects of 182Ta and 94Nb radionuclides, it is a problem to quickly obtain the activity...
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Preparation of novel zirconium phosphonates for adsorption of lutetium
June 2022
Separation and recovery of 177Lu from radioactive medicine waste is concerned due to its potential application in radiopharmaceuticals. In this paper, two zirconium phosphonate materials (Zr-AMTP-1...
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VSAS: A smart small-angle scattering data processing tool
June 2022
A visual Small-angle X-ray/neutron scattering data analysis software VSAS has been developed for the quantitative small-angle scattering data processing. VSAS provides a graphical interface which allows...
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A fast numerical calculation method of polarized neutrons precession in multiplex magnetic field
June 2022
To achieve efficient design and accurate simulation of neutron spin flipping, a fast numerical calculation method was introduced to facilitate the processes parameter optimization and flipper design....
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