A5047055390- X-ray Spectroscopy and Fluorescence Analysis
- Atomic and Molecular Physics
- Nuclear Physics and Applications
- Nuclear physics research studies
- Ion-surface interactions and analysis
- Electron and X-Ray Spectroscopy Techniques
- Laser-induced spectroscopy and plasma
- Advanced Chemical Physics Studies
- Wastewater Treatment and Nitrogen Removal
- Mass Spectrometry Techniques and Applications
- Ammonia Synthesis and Nitrogen Reduction
- Quantum Chromodynamics and Particle Interactions
- Astronomical and nuclear sciences
- Radiation Therapy and Dosimetry
- Crystallography and Radiation Phenomena
- Advanced X-ray and CT Imaging
- Spectroscopy and Laser Applications
- Spacecraft and Cryogenic Technologies
- Radiation Effects and Dosimetry
- Laser-Plasma Interactions and Diagnostics
- Random lasers and scattering media
- Chemical Reactions and Isotopes
- Optical Coherence Tomography Applications
- Photorefractive and Nonlinear Optics
- Photonic Crystals and Applications
Chinese Academy of Sciences
2014-2025
Institute of Modern Physics
2014-2025
University of Chinese Academy of Sciences
2014-2025
Beijing Institute of Technology
2025
Xianyang Research and Design Institute of Ceramics (China)
2025
Lanzhou University
2016
Intermolecular Coulombic decay (ICD) is considered a general phenomenon that plays key role in many fundamental and applied fields related to biological environments. In cases, however, the mechanisms efficiency of ICD have yet be uncovered. A prominent example heavy-ion cancer therapy. Here, we report first detection damaging intermolecular relaxation cascade initiated by bombardment hydrated pyrimidine clusters. The process can significantly contribute high effectiveness irradiation thus...
Fourier single-pixel imaging (FSI) takes full advantage of the high modulation speed digital micromirror devices by applying upsampling and spatial dithering to binarize grayscale patterns, thereby achieving efficient imaging. However, process patterns sacrifices resolution. Here, we propose a binarization method for FSI that enhances reconstructed image quality without need upsampling. The key is with serpentine path directly both positive negative components before binarization. By...
The line ratios in X-ray emission resulting from charge exchange between highly charged ions (HCIs) and neutral atoms are not only crucial for accurately modeling astrophysical emissions but also offer a unique perspective on the processes happening during collisions. K spectra following Mg11+ He presented collision velocity of 1489 km/s (11.5 keV/amu). were measured by two Silicon Drift Detectors capable resolving Mg10+ Kα, Kβ, Kγ, Kδ+ lines. intensity relative to Kα line, as well hardness...
The very first in-ring reaction experiment at the HIRFL-CSR heavy-ion storage ring, namely proton elastic scattering on stable $^{58}$Ni nuclei, is presented. circulating $^{58}$Ni$^{19+}$ ions with an energy of 95 MeV/u were interacting repeatedly internal hydrogen gas target in CSRe experimental ring. Low recoils from collisions measured ultra-high vacuum compatible silicon-strip detector. Deduced differential cross sections normalized by measuring K-shell X-rays projectiles due to...
X-ray spectra of K-shell hollow krypton atoms produced in single collisions with 52 - 197 MeV/u Xe54+ ions are measured a heavy-ion storage ring equipped an internal gas-jet target. Energy shifts the K{\alpha}_1,2^s, K{\alpha}_1,2^(h,s), and K\b{eta}_1,3^s transitions obtained. Thus, average number spectator L-vacancies presented during x-ray emission is deduced. From relative intensities K{\alpha}_1,2^s K{\alpha}_1,2^(h,s) transitions, ratio to singly ionized determined be 14 24%. In...
Abstract A wide-band, high-resolution vacuum flat-crystal spectrometer was developed for analyzing the x-rays spectra of hollow atoms. The designed to cover an energy dynamic range 0.6 16 keV by combining different flat crystals and x-ray CCD detector mounted on a twistable bellows that could modulate Bragg angles ranging from 25° 50°.The performance evaluated in 3–12 measuring K L generated 10–30 electron beam collisions with solid titanium, silver gold targets, respectively. typical...
Anisotropic distributions of the Lyman-${\ensuremath{\alpha}}_{1}$ transition down-charged $\mathrm{X}{\mathrm{e}}^{53+*}$ ions are observed in fast $\mathrm{X}{\mathrm{e}}^{54+}$ with Kr and Xe collisions, which electron is transferred by nonradiative capture mechanism. At energy 95 MeV/u, alignment parameter projectile $2{p}_{3/2}$ state, ${\mathcal{A}}_{20}$, determined to be \ensuremath{-}0.35 \ifmmode\pm\else\textpm\fi{} 0.02 for both targets. While 146 target \ensuremath{-}0.28...
Lyman transitions of ${\mathrm{Xe}}^{53+*}$ produced by nonradiative electron capture in collisions 95, 146, and 197 ${\mathrm{MeV/u}\phantom{\rule{4pt}{0ex}}\mathrm{Xe}}^{54+}$ ions with Kr Xe atoms have been studied experimentally. It shows that the captured electrons preferentially populate lower states. The intensity ratios $I(\mathrm{Ly}\text{\ensuremath{-}}\ensuremath{\beta})/I(\mathrm{Ly}\text{\ensuremath{-}}\ensuremath{\alpha})$...
Small-angle differential cross sections of proton elastic scattering off $^{78}\mathrm{Kr}$ with a collision energy 152.7 MeV/u were measured at the experimental Cooler Storage Ring Heavy Ion Research Facility in Lanzhou (HIRFL-CSR). Low recoil protons from counted by silicon-strip detector to determine relative sections. A model-dependent root-mean-square matter radius 4.16(12) fm for nucleus was deduced employing Glauber model. Compared 4.13 $^{78}\mathrm{Kr}$, our center value is slightly...
HIRFL-CSR, a new cooler-storage-ring project, is the post-acceleration system of Heavy Ion Research Facility in Lanzhou (HIRFL) consisting main ring (CSRm) and an experimental (CSRe). The construction HIRFL-CSR complex nearing completion. stored beam CSRm has been observed. Recently, was accelerated from 7 MeV/u to 30 MeV/u. cluster target located one straight section CSRe providing jet targets inert gases small molecular gases. finished results test running are presented.
Abstract We measured the angular distribution of subsequently emitted Lyman- α 1 transition Xe 53+* ions following nonradiative electron capture in collisions 197 MeV u −1 54+ projectiles with gaseous krypton target. The alignment projectile 2 p 3/2 state and relative population its magnetic substates were further deduced. In contrast to available lower energy results (Yang et al 2020 Phys. Rev. A 102 042803), it is found that at radiation becomes much less anisotropic are nearly...
Proton-$^{133}$Cs elastic scattering at low momentum transfer is performed using an in-ring reaction technique the Cooler Storage Ring Heavy Ion Research Facility in Lanzhou. Recoil protons from collisions between internal H$_2$-gas target and circulating $^{133}$Cs ions 199.4 MeV/u are detected by a silicon-strip detector. The matter radius of deduced describing measured differential cross sections Glauber model. Employing adopted proton distribution radius, point-neutron 4.86(21) fm for...
Proton-133Cs elastic scattering at low momentum transfer is performed using an in-ring reaction technique the Cooler Storage Ring Heavy Ion Research Facility in Lanzhou. Recoil protons from collisions between internal H2-gas target and circulating 133Cs ions 199.4 MeV/u are detected by a silicon-strip detector. The matter radius of deduced describing measured differential cross sections Glauber model. Employing adopted proton distribution radius, point-neutron 4.86(21) fm for obtained. With...
We studied the nonradiative double-electron capture in collisions of 95, 146, and 197 MeV/u $\mathrm{X}{\mathrm{e}}^{54+}$ ions with Kr Xe atoms by measuring x-ray intensity ratios $I(1s\mathcal{n}p\ensuremath{\rightarrow}1{s}^{2})/I(\mathcal{n}p\ensuremath{\rightarrow}1s)$ ($\mathcal{n}=2$, 3, 4) resulting $\mathrm{X}{\mathrm{e}}^{52+*}$ $\mathrm{X}{\mathrm{e}}^{53+*}$ ions. It was found that becomes more important decreasing projectile energy, although single-electron is always dominant....