A5073577137- Magnetic confinement fusion research
- Ionosphere and magnetosphere dynamics
- Laser-Plasma Interactions and Diagnostics
- Particle accelerators and beam dynamics
- Superconducting Materials and Applications
- Particle physics theoretical and experimental studies
- Fusion materials and technologies
- Atomic and Subatomic Physics Research
- Quantum Chromodynamics and Particle Interactions
- Neutrino Physics Research
- High-Energy Particle Collisions Research
- Physics of Superconductivity and Magnetism
- Plasma Diagnostics and Applications
- Nuclear physics research studies
- Solar and Space Plasma Dynamics
- Atomic and Molecular Physics
- Underwater Acoustics Research
- Human Pose and Action Recognition
- Advanced Vision and Imaging
- Cold Atom Physics and Bose-Einstein Condensates
- Laser-induced spectroscopy and plasma
- Radioactive Decay and Measurement Techniques
- Medical Imaging Techniques and Applications
- Nuclear Physics and Applications
- Advanced NMR Techniques and Applications
Institute of Modern Physics
2024-2025
University of Chinese Academy of Sciences
2024-2025
Nanjing Tech University
2025
University of Ottawa
2025
Oak Ridge Associated Universities
2021-2024
Chinese Academy of Sciences
2016-2024
Institute of Plasma Physics
2016-2024
Beihang University
2020-2024
Wuhan University of Technology
2024
Jiangsu University
2024
Evidence of a nonlinear transition from mitigation to suppression the edge localized mode (ELM) by using resonant magnetic perturbations (RMPs) in EAST tokamak is presented. This first demonstration ELM with RMPs slowly rotating plasmas dominant radio-frequency wave heating. Changes topology after are indicated gradual phase shift plasma response field linear magneto hydro dynamics modeling result vacuum one and sudden increase three-dimensional particle flux divertor. The threshold depends...
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...
We have set limits on contributions of scalar interactions to nuclear $\ensuremath{\beta}$ decay. A magneto-optical trap provides a localized source atoms suspended in space, so the low-energy recoiling nuclei can freely escape and be detected coincidence with $\ensuremath{\beta}$. This allows reconstruction neutrino momentum, measurement $\ensuremath{\beta}\mathrm{\text{\ensuremath{-}}}\ensuremath{\nu}$ correlation, more direct fashion than previously possible. The correlation parameter...
A set of in-vessel resonant magnetic perturbation (RMP) coil has been recently installed in EAST. It can generate a range spectrum, and there is relatively large window for edge localized mode (ELM) control according to the vacuum field modeling island overlapping area. Observation mitigation suppression ELM slow rotating plasmas during application an n = 1 RMP presented this paper. Strong effect observed neutral beam injection heating plasmas. The frequency increases by factor 5, crash...
3D point clouds associated with attributes are considered as a promising paradigm for immersive communication. However, the corresponding compression schemes this media still in infant stage. Moreover, contrast to conventional image/video compression, it is more challenging task compress cloud data, arising from irregular structure. In paper, we propose novel and effective scheme of voxelized clouds. first stage, an input divided into blocks equal size. Then, deal structure clouds,...
Full suppression of type-I edge localized modes (ELMs) using n = 4 resonant magnetic perturbations (RMPs) as planned for ITER has been demonstrated the first time (n is toroidal mode number applied RMP). This achieved in EAST plasmas with low input torque and tungsten divertor, target plasma these experiments chosen to be relevant Q 10 operational scenario, thus also addressing significant scenario issues ITER. In lowest neutral beam injection (NBI) around TNBI ∼ 0.44 Nm, which extrapolates...
Sustained mitigation and/or suppression of the type-I edge localized modes (ELMs) have been achieved in EAST H-mode plasmas, utilizing resonant magnetic perturbation (RMP) fields, produced by two rows coils located just inside vacuum vessel.Systematic toroidal modelling plasma response to these RMP with various coil configurations (with dominant mode number n=1, 2, 3, 4) EAST, is for first time carried out using MARS-F code [Liu Y et al 2000 Phys.Plasmas 7 3681], results reported here.In...
Controlling the steady state particle and heat flux impinging on plasma facing components, as one of main concerns future fusion reactors, is still necessary when transient power loads induced by edge localized modes (ELMs) have been eliminated resonant magnetic perturbations (RMPs) in high confinement tokamak experiments. This especially true for long pulse operation. One promising solution to use rotating perturbed field. Recently differential phase scans n = 1 2 RMP fields operated first...
3D point clouds associated with attributes are considered as a promising data representation for immersive communication. The large amount of data, however, poses great challenges to the subsequent transmission and storage processes. In this letter, we propose new compression scheme color attribute static voxelized clouds. Specifically, first partition colors cloud into clusters by applying k-d tree geometry information, which then successively encoded. To eliminate redundancy, novel...
Abstract The plasma-beta effect on the n = 1 resonant magnetic perturbation (RMP) field penetration in purely radio-frequency (RF) wave heated discharges has been investigated EAST. experimental results show that dependence of threshold RMP coil current for penetration, <?CDATA $I_{\textrm {RMP,th}}$?> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:msub> <mml:mi>I</mml:mi> <mml:mrow> <mml:mtext>RMP,th</mml:mtext> </mml:mrow> </mml:msub> </mml:math> , total...
Abstract Intrinsic error field on EAST is measured using the ‘compass scan’ technique with different n = 1 magnetic perturbation coil configurations in ohmically heated discharges. The intrinsic a non-resonant dominated spectrum even connection of upper and lower resonant coils order <?CDATA ${{b}_{r2,1}}/{{B}_{\text{T}}}\simeq {{10}^{-5}}$ ?> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mstyle displaystyle="false"> <mml:msub> <mml:mrow> <mml:mi>b</mml:mi>...
Density scaling of error field penetration in EAST is investigated with different n = 1 magnetic perturbation coil configurations ohmically heated discharges. The density scalings thresholds under two spectra are and , where br the ne line averaged electron density. One difficulty understanding that key parameters other than determining process may also be changed when plasma changes. Therefore, they should determined from experiments. estimated theoretical analysis ( lower region higher...
The generation of a virtual digital avatar is crucial research topic in the field computer vision. Many existing works utilize Neural Radiance Fields (NeRF) to address this issue and have achieved impressive results. However, previous assume images training person are available fixed while appearances poses subject could constantly change increase real-world scenarios. How update human but also maintain ability render old appearance practical challenge. One trivial solution combine models...
Abstract The formation of a static 3-Dimensional (3D) helically localized perturbation structure the Toroidal Alfv'en Eigenmode (TAE) is observed for first time under magnetic islands induced by Resonant Magnetic Perturbations (RMP) in tokamak plasmas. Before application RMP, TAE around 200 kHz excited Electron Cyclotron Resonance Heating (ECRH) Energetic Electrons (EEs). After n = 1 mode into helical area on flux surface, where toroidal number. We find strengthened near X points m/n=-3/1...
The generation of a virtual digital avatar is crucial research topic in the field computer vision. Many existing works utilize Neural Radiance Fields (NeRF) to address this issue and have achieved impressive results. However, previous assume images training person are available fixed while appearances poses subject could constantly change increase real-world scenarios. How update human but also maintain ability render old appearance practical challenge. One trivial solution combine models...
With the increasingdemand for sustainable energy harvesting and advanced engineering materials, coupled nanogenerators present promising applications as an emerging conversion device. The limitations of conventional materials regarding strength durability have stimulated development novel nanogenerator sutilizing a porous core‐shell structured nanofiber architecture: polyurethane@polyvinylidene difluoride‐ zinc oxide* polyamide 66 (porous PU@PVDF‐ZnO*PA66). In this study,...
A toroidal Alfvén eigenmode (TAE) excited by barely trapped energetic electrons during the application of a static magnetic perturbations (MPs) is observed for first time in tokamak ohmic heating plasmas. This TAE appears when current n = 2 MPs exceeds threshold value, at which forced reconnection happens. Here, mode number. located near plasma edge, agrees with calculation gap. It propagates ion diamagnetic direction and has dominant number 2. The frequency consistent precessional energy...
Experiments using Resonant Magnetic Perturbations (RMPs), with a rotating n = 2 toroidal harmonic combined stationary 3 harmonic, have validated predictions that divertor heat and particle flux can be dynamically controlled while maintaining Edge Localized Mode (ELM) suppression in the DIII-D tokamak. Here, is mode number. ELM over one full cycle of RMP was mixed static field has been achieved. Prominent splitting on outer observed during by RMPs low collisionality regime DIII-D. Strong...
Edge localized mode (ELM) suppression has been achieved in the DIII-D tokamak using mixed toroidal and 3 harmonic resonant magnetic perturbations (RMPs). Here is number. It observed that RMPs lower threshold current for ELM compared to single case. The decreased suggests offer a better path control. error field effect studied by superimposing correction upon phase scan, which shows it possible suppress correct simultaneously. plasma response measured sensors plays key role RMPs. A nonlinear...
The toroidal plasma rotation braking effect during the application of n = 1 static resonant magnetic perturbation is studied by momentum transport analysis in EAST tokamak. torque shows a global profile and two peaks located near core edge, respectively. diffusion contributes significantly to calculated torque. Simulation results with obtained coefficients well reproduce observed evolution. Neoclassical viscosity (NTV) modeled for comparison experimental total integrated NTV around −0.12 Nm,...