A5009987616- Laser-Plasma Interactions and Diagnostics
- Magnetic confinement fusion research
- Laser-induced spectroscopy and plasma
- Ionosphere and magnetosphere dynamics
- Dust and Plasma Wave Phenomena
- Superconducting Materials and Applications
- Particle accelerators and beam dynamics
- Laser-Matter Interactions and Applications
- High-pressure geophysics and materials
- Plasma Diagnostics and Applications
- Plasma Applications and Diagnostics
- Fusion materials and technologies
- Advancements in Battery Materials
- Electrohydrodynamics and Fluid Dynamics
- Atomic and Molecular Physics
- Advanced Fiber Optic Sensors
- Nuclear Physics and Applications
- Laser Design and Applications
- Advanced Fiber Laser Technologies
- High-Velocity Impact and Material Behavior
- Multicomponent Synthesis of Heterocycles
- Strong Light-Matter Interactions
- Acoustic Wave Resonator Technologies
- Electromagnetic Fields and Biological Effects
- Aluminum Alloy Microstructure Properties
North University of China
2025
Changjiang Institute of Survey, Planning, Design and Research
2024
University of Science and Technology of China
2003-2020
Chinese Academy of Sciences
2017-2020
University of South China
2020
Institute of Plasma Physics
2017-2020
Huazhong University of Science and Technology
2012-2014
Anhui University of Science and Technology
2012
State Key Laboratory of Advanced Electromagnetic Engineering and Technology
2012
University of Alberta
2009
This paper describes a microwave plasma jet in an argon atmosphere capable of generating filamentary streamer discharges within the entire quartz tube excited by surface waves plasmon polaritons (SPPs) located tube. Several discharge streamers are immediately produced at end copper wire when incident power reaches 20 W. From simulations, wavelength wave was found to be approximately 5.7 cm. Although developing induce E-field enhancements favoring discharging, more bifurcations requiring...
This paper presents heat flux simulations for the ELMy H-mode on Experimental Advanced Superconducting Tokamak (EAST) using a six-field two-fluid model in BOUT++. Three EAST discharges with different plasma currents I p and geometries are studied. The trend of scrape-off layer width is reproduced by simulation. simulated only half that derived from scaling law, but agrees well international multi-machine law. Note there no radio-frequency (RF) heating scheme simulations, RF can change...
Abstract Herein, bamboo-based hard carbon (BHC) is produced through delignification and carbonization process used as anode materials for sodium-ion batteries (SIBs). Removing lignin hemicellulose disrupts the internal structure of bamboo provides more free radicals, high-temperature abundant closed micropores BHCs. The BHCs increased sodium storage capacity in plateau region. carbonized at 1300°C SIBs exhibits a first discharge 335.12 mAh g-1 0.05 C with an initial coulombic efficiency...
Demodulation of fiber optic Fabry-Pérot (F-P) acoustic sensors with high sensitivity and a large dynamic range continues to pose significant challenges. In this paper, we propose an advanced phase-generated carrier (PGC) demodulation algorithm, applied innovatively membrane-free F-P operating under sound pressure. The algorithm optimizes results by adjusting the mixing phase delay, achieving best signal noise distortion ratio (SINAD) total harmonic (THD) (<1%). Additionally, introducing...
The dynamic form factor for Thomson scattering with a non-Maxwellian (super-Gaussian) electron velocity distribution is analytically and numerically studied the first time. Both ion features of spectra α&gt;1 are found to be affected strongly. For feature, use usual theoretical assumption Maxwellian fitting measured may have resulted in some errors calculating plasma parameters high-Z plasmas irradiated high intensity light. However, it impossible feature alone deduce distribution....
A novel method to produce strong and effective argon plasma jets in air is reported. By adjusting the structure setting location of a copper wire quartz tube, an intensive jet composed two about 2.4 cm produced with microwave power 50 W. The frequency 2.45 GHz. Four twisty 2.0 for discharge are generated four tubes at incident 120 ball 0.5 radii tube 100 simulated distribution electric field folded consistent prediction surface plasmon polaritons. Spectral diagnosis also discussed this paper.
A radiation-driven m = 2 island was observed in the experimental advanced superconducting tokamak (EAST) ohmic plasma, near density limit. The mode onset occurs when heating input is less than radiative cooling loss, which agrees with behavior of thermo-resistive model. evolution equilibrium during process obtained using ONETWO transport code, inputs comprising electron temperature and profiles. large can drive an 1 sideband mode, leads to internal crash that appears as a change not only q...
Based on the fluctuation-dissipation theorem, this work is concerned with dynamic form factor of Thomson scattering for ion-collisional plasmas. The main effort to calculate ion susceptibility by analytically solving linearized Fokker–Planck equation through Chang–Callen 13-moment approach. Comparison other theories shows that theory can provide an accurate prediction position and width ion-acoustic peaks a proper description entropy wave some underestimation its damping. may be useful...
The experimental results of angular distribution hot electrons in the interaction a 60 fs, 125 mJ, 800 nm, ∼1017 W cm−2 laser pulse with Al targets are reported. Three obvious peaks emission have been observed, as there is weak normal component electric field. These located directions specular reflection laser, target normal, and backreflection respectively. In case P-polarized pulse, which has strong field, peak disappeared, only two electron emissions existed. It shows that different...
Detailed measurements of gold plasmas produced with 0.351 μm laser light are reported. The temporal and spatial variations Z̄Te obtained in the case that pump intensities 6.5×1013 1.4×1014 W/cm2. experimental results qualitatively consistent two nonlocalized absorption models.
Abstract In order to study the distribution and evolution of transient particle heat fluxes during edge-localized mode (ELM) bursts on Experimental Advanced Superconducting Tokamak (EAST), BOUT++ six-field two-fluid model is used simulate pedestal collapse. The profiles from EAST H-mode discharge #56129 are as initial conditions. Linear analysis shows that resistive ballooning drift-Alfven wave two dominant instabilities for equilibrium, play important roles in driving ELMs. density profile...
An ultrafast quenched plastic scintillation detector was used to measure the fusion fuel ion temperature at low implosion (DT) neutron yield (5×108–3×109) in initial experiment performed Shenguang II laser facility. The typical temperatures of exploding pusher targets for direct drive were around 4 keV and uncertainties ±15–23%. detection efficiency DT neutrons calibrated a K-400 accelerator. time response function system by from DT-filled capsule, which can be regarded as δ pulsed source...
The purpose of this work was to screen the actinomycetes having antitumor or antimicrobial activity, which were isolated from surface, epidermis and intestines sea plants animals collected Taiwan Strait, China. Antitumor activity studied by MTT assay DNA target biochemical induction while determined observing bacterial fungal growth inhibition. 20.6% marine actinomycete cultures displayed cytotoxic on P388 cells at dilutions below 1:320 18.6% KB cells. 2.96% inducing activity. Among all...
The full set of linearized Fokker–Planck kinetic equations with Landau collision terms have been solved as an initial-value problem for equilibrium electron-ion plasmas. This work is a generalization the nonlocal transport theory by Bychenkov et al. [Phys. Rev. Lett. 75, 4405 (1995)] to both electron and ion components frequency-dependent responses. Transport closure relations obtained complete fluid which are valid over range particle collisionality arbitrary ionic charge. well-known limits...
Double-peak emission of hot electrons has been observed in the interaction a 60-fs, 125-mJ, 800-nm, p-polarized laser pulse with Al targets. One peak specular direction is due to reflected light, which excites plasma wave accelerate electrons. The other peak, more consistent theories Phys. Plasmas 6, 2855 (1999)] and Rev. Lett 82, 743 (1999)], produced by resonance absorption at approximately 15 degrees from target normal.
The optical guiding of a moderately intense laser pulse in parabolic preformed plasma channel is analyzed by means the variational method. Relativistic, ponderomotive and their coupling nonlinearities are included. conditions for periodic defocusing focusing, as well constant spot size propagation given. It found that focusing released relativistic nonlinearities.
Laser technology developments, including construction of a 286-TW Ti:Sapphire laser with focused intensity 10 21 W/cm 2 , installation the TIL, prototype SG-III, and operation SG-II are presented. Results experiments on hohlraum physics, indirect-drive implosion, Thomson scattering, EOS, X-ray briefly introduced. Simulations code package, LARED, for target physics outlined.
Heating with the wave in ion cyclotron range of frequencies (ICRF) has been used development high-performance H-mode operations EAST. A different resonance heating scenario three-ion component plasma real experimental parameters on EAST was investigated using a numerical tool. Excellent radio frequency absorption found an extremely low 3He concentration (0.1%–0.4%) D-H-(3He) plasma, by adjusting composition appropriately our simulation. In this case, fundamental layer is located between two...
Plasma jet provides an effective mode for many potential industrial applications. Microwave plasma excitated by surface plasmon polaritons is displayed under different operational conditions. Images of the observed jets are presented. Ar, N <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> , and air chosen as feed gases. Incident microwave power 5, 15, 30, 50 W used, longest length 300 mm argon pressure 63 Pa.