A5053993590- Magnetic confinement fusion research
- Superconducting Materials and Applications
- Ionosphere and magnetosphere dynamics
- Particle accelerators and beam dynamics
- Wind and Air Flow Studies
- Fusion materials and technologies
- Atomic and Subatomic Physics Research
- Aerodynamics and Fluid Dynamics Research
- Fluid Dynamics and Vibration Analysis
- Optical Imaging and Spectroscopy Techniques
- Fluid Dynamics and Turbulent Flows
- Laser-Plasma Interactions and Diagnostics
- Solar Energy Systems and Technologies
- Non-Invasive Vital Sign Monitoring
- Acute Myeloid Leukemia Research
- Solar and Space Plasma Dynamics
- Photoacoustic and Ultrasonic Imaging
- Cardiovascular Health and Disease Prevention
- Advanced Electrical Measurement Techniques
- Random lasers and scattering media
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Acute Lymphoblastic Leukemia research
- Plasma Diagnostics and Applications
- Advanced Optical Sensing Technologies
- Advanced Thermodynamics and Statistical Mechanics
Southwestern Institute of Physics
2012-2024
Ruijin Hospital
2023
Shanghai Jiao Tong University
2023
Shanghai Institute of Hematology
2023
Fusion Academy
2023
State Key Laboratory of Medical Genomics
2023
Duke University
2022
University of Kentucky
2021
Oklahoma State University Oklahoma City
2019
Institute of Plasma Physics
2013
Abstract Since the first plasma realized in 2020, a series of key systems on HL-3 (known as HL-2M before) tokamak have been equipped/upgraded, including in-vessel components (the wall, lower divertor, and toroidal cryogenic/water-cooling/baking/glow discharge systems, etc.), auxiliary heating system 11 MW, 28 diagnostic (to measure density, electron temperature, radiation, magnetic field, etc.). Magnet field were commissioned firstly for divertor discharges. During 2nd experimental campaign...
The Kubelka–Munk (KM) theory of diffuse photon remission from opaque media is widely applied to quality-control processes. Recent works based on radiative transfer revealed that the KM function as backbone parameter method may saturate at strong absorption cause approach be unfit predict change reflectance medium absorption. We demonstrate by empirical means Monte Carlo results a strong-absorbing depends simply upon absorption/scattering ratio when evaluated over large area centered point...
The influence of resonant magnetic perturbations (RMPs) on the dynamics turbulence and flows at edge HL-2A tokamak is analyzed utilizing transfer entropy technique. results have shown that RMP damps poloidal as well E × B shearing rate, whereas enhances toroidal leads to a broadened particle spectrum with increased small scale transport. causality analysis indicates regulation impact flow turbulent fluctuations flux weakened, while rotation latter strengthened by field. changes in dominates...
Genetic mutations of IKZF1 have been frequently delineated in B-lineage acute leukaemia (B-ALL) but rarely elucidated myeloid (AML). confer a poor prognosis AML, and hotspot IKZF1, N159Y N159S tend to occur B-ALL AML respectively. However, the pathogenesis lineage susceptibility are largely unknown.The genetic clinical characteristics IKZF1-mutated patients were evaluated. Multi-omics analysis functional assays performed vitro using knock-in cell lines.23 (4.84%) small sequence variants...
In an experimental study of the runaway electron generation during major disruptions in HuanLiuqi-2A (commonly referred to as HL-2A) [L. W. Yan, Nucl. Fusion 51, 094016 (2011)] tokamak, detailed time and space resolved x-ray images long-lived beam flight have been observed these allow a analysis evolution disruption produced disruption, where conversion efficiency pre-disruption plasma current into is up 55% on HL-2A tokamak. Moreover, delay about 7 ms between start formation has found. With...
The first plasmas have been achieved in the HL-2M tokamak by fulfilling usual criteria for plasma breakdown, i.e. optimal working gas pressure, field null configuration of poloidal magnetic field, reasonable toroidal electrical and clean wall conditions. characterization initiation, such as identification initiation time position, is performed diagnostic data analysis numerical simulation. A model-based method, which enables dedicated pick-up sensors to estimate radial position real time,...
Diffuse photon remission associated with the center-illuminated-area-detection (CIAD) geometry has been useful for non-contact sensing and may inform single-fiber reflectance (SfR). This series of work advances model approaches that help enrich understanding applicability by CIAD. The general approach is to derive diffuse area integration radially resolved while limiting analysis a medium exhibiting only Heyney-Greenstein (HG) scattering phase function. Part I assesses steady-state in CIAD...
A new wide-angle endoscope for visible light observation on the Experimental Advanced Superconducting Tokamak (EAST) has been recently developed. The head section of optical system is based a mirror reflection design that similar to International Thermonuclear Reactor-like diagnostic Joint European Torus. However, simplified and improved. As result, global transmittance as high 79.6% in wavelength range from 380 780 nm, spatial resolution <5 mm full depth field (4000 mm). also large...
The diamagnetic concentric loop method in the HL-2A tokamak is described this article. system consists of two poloidal loops with different areas enclosing plasma column and a short time constant differential integrator, RC < 1 ms. flux ranges from mWb to 2 for typical discharges current Ip = 100-400 kA. integrator output 0.1 V 0.2 0.5 ms, area ΔS∕Sout ≈ 7%. Using hybrid analog-digital compensation, integration drift can be well compensated within 5 mV∕10 s, which meet requirement system. In...
Abstract Any arbitrary perturbation on a magnetic field separatrix can cause structure named homoclinic tangle in tokamaks. Both an edge localized mode (ELM) and resonant (RMP) lead to of the separatrix. Under appropriate circumstances, RMP could alleviate or even completely suppress rapid collapse process ELM. The simulation results using CLTx code, extended version three-dimensional toroidal magnetohydrodynamic (MHD) code (CLT (Ci-Liu-Ti, which means MHDs Chinese)) with scrape-off layer,...
Abstract Nonlinear modeling of mitigation the edge localized mode (ELM) with resonant magnetic perturbation (RMP) is performed for HL-2A tokamak, utilizing three-dimensional (3D) magnetohydrodynamic code JOREK. Based on 3D equilibrium established after application <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mrow> <mml:mi>n</mml:mi> <mml:mo>=</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> </mml:math> ( toroidal number) RMP at <mml:mn>4.9</mml:mn> <mml:mstyle...
The stability and performance of tokamak plasmas are routinely limited by various magneto-hydrodynamic instabilities, such as neoclassical tearing modes (NTMs). This paper presents a rather simple method to control the NTMs in real time (RT) on tokamak, including principle feedback approach for RT suppression stabilization NTMs. system combines Mirnov, electron cyclotron emission, soft X-ray diagnostics used determining NTM positions. A methodology fast detection 2/1 or 3/2 positions with...
Abstract The impact of resonant magnetic perturbation (RMP) on blob motion and structure in the SOL HL-2A tokamak is studied using a gas puff imaging diagnostic. Ellipse fitting applied to study blobs quantitatively. radial locations, amplitudes scale sizes are obtained based fitted ellipse. Furthermore, measurement location, poloidal velocities calculated. With application RMP, edge shear flow significantly weakened wave number spectrum changes from quasisymmetric up-down asymmetric. RMP...
HL-3 is a new medium-sized copper conducting tokamak, which dedicated to the plasma shaping control for high performance and flexible operation, especially advanced divertor configurations. According physics needs of project, three types magnetic pickup coils are designed developed on field measurements. The emphasize different geometry sizes array layouts. installed carefully by using high-precision positioning equipment ensure measurement accuracy system. After calibration, measurements...
A high-frequency magnetic probe system is designed, calibrated and constructed on the HL-2A tokamak. To investigate factors which affect frequency response, inductance capacitance in are analyzed using an equivalent circuit. Suitable sizes turn number of coil, length transmission cable optimized based theory detailed test calibration. deal with response limitation bake-out, ceramic grooved technique used wound a bare copper wire. cascade filter manufactured suitable bandwidth as well good...
In this work, we developed a new integrator system with low-drift and small integration time constant less than 1 ms, which applies to the weak signals from magnetic measurements. This is designed on basis of analog drift compensation real-time digital correction residual drift. The achieved by subtraction between two integrators method available due stability integral in short scale. algorithm calculation implemented field programmable gate array. can be well compensated within 10 mV/10 s...