Chaofeng Sang
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View article: Transition of blue-core mode helicon discharge
Transition of blue-core mode helicon discharge Open
This study explores the transitional characteristics of blue-core mode helicon discharge, which to our knowledge was not particularly focused before. Parameters are measured on a recently built advanced linear plasma device, i.e., a multip…
View article: Environmental and socio-economic sustainability assessment of remediation alternatives for a contaminated oil refinery site in Southern China
Environmental and socio-economic sustainability assessment of remediation alternatives for a contaminated oil refinery site in Southern China Open
Refineries are an important industrial legacy, emitting large amounts of petroleum hydrocarbons and highlighting the need for the green and sustainable remediation of contaminated oil refinery sites globally. This study aimed to evaluate t…
View article: Impact of <i>E</i> × <i>B</i> drift on tungsten impurity transport and analysis of its instantaneous response: a particle Monte Carlo simulation
Impact of <i>E</i> × <i>B</i> drift on tungsten impurity transport and analysis of its instantaneous response: a particle Monte Carlo simulation Open
Tungsten (W), as the primary plasma-facing material in tokamaks, is incompatible with the core plasma. Even extremely low concentrations of W impurities can contaminate the plasma. Therefore, the transport and core accumulation of W impuri…
View article: Effects of strike point location and collisional processes on energy and particle detachment in EAST with lower tungsten divertor
Effects of strike point location and collisional processes on energy and particle detachment in EAST with lower tungsten divertor Open
Divertor detachment is crucial for the particle and power exhaust in future fusion reactors. The EAST lower tungsten divertor, with its ‘corner slot’ structure, exhibits remarkable geometric closure, thus enhances neutral trapping. In this…
View article: Coordination of autophagosome closure and release by the Alzheimer’s disease-associated protein BIN1
Coordination of autophagosome closure and release by the Alzheimer’s disease-associated protein BIN1 Open
Autophagosome closure by the endosomal sorting complex required for transport (ESCRT) complex is a prerequisite for their dynamin 2 (DNM2)-dependent release from the recycling endosome and subsequent lysosomal clearance. However, the mecha…
View article: Environmental and socio-economic sustainability assessment of remediation alternatives for a contaminated oil refinery site in Southern China
Environmental and socio-economic sustainability assessment of remediation alternatives for a contaminated oil refinery site in Southern China Open
Refineries are an important industrial legacy, emitting large amounts of petroleum hydrocarbons and highlighting the need for the green and sustainable remediation of contaminated oil refinery sites globally. This study aimed to evaluate t…
View article: High-speed laser ranging using linear/Geiger dual-mode detector in the near-infrared with InGaAs/InP SPAD
High-speed laser ranging using linear/Geiger dual-mode detector in the near-infrared with InGaAs/InP SPAD Open
Focusing on the characteristics of large variation ranges in target signals and background noise in near-infrared Light Detection and Ranging (LiDAR) applications, this paper proposes a method of Linear/Geiger dual-mode detection based on …
View article: Simulation of the mitigation of tungsten divertor target erosion by real-time lithium powder injection on EAST
Simulation of the mitigation of tungsten divertor target erosion by real-time lithium powder injection on EAST Open
Real-time lithium (Li) powder injection, a key wall conditioning method on EAST (Experimental Advanced Superconducting Tokamak), can mitigate tungsten (W) erosion and impurity generation through multiple mechanisms, including changes in th…
View article: SOLPS-ITER simulation of W limiter start-up on ITER
SOLPS-ITER simulation of W limiter start-up on ITER Open
The switch from beryllium (Be) to tungsten (W) first wall (FW) armor in the new ITER baseline Pitts et al (2025 Nucl. Mater. Energy 42 101854), Loarte (n.d. Plasma Phys. Control. Fusion ) will impact the limiter start-up phase due to the m…
View article: Experimental and simulation study of helium plasma transport during ion cyclotron resonance heating in MPS-LD
Experimental and simulation study of helium plasma transport during ion cyclotron resonance heating in MPS-LD Open
The linear plasma devices (LPDs) can provide a good platform to experimentally simulate the divertor physics. MPS-LD is a new LPD, which uses ion cyclotron resonance heating (ICRH) to raise the ion temperature ( T i ). In this work, the he…
View article: Deep learning-enabled real-time prediction of impurity-induced detachment in EAST
Deep learning-enabled real-time prediction of impurity-induced detachment in EAST Open
Impurity seeding has been consistently demonstrated to facilitate plasma detachment, effectively reducing the amount of heat and particles reaching divertor targets. However, achieving and maintaining a stable detached state requires preci…
View article: Simulation of effect of neoclassical convection on tungsten impurity core accumulation in tokamak
Simulation of effect of neoclassical convection on tungsten impurity core accumulation in tokamak Open
Controlling of tungsten (W) impurity core accumulation is of great significance for the steady-state operation of tokamaks. This work mainly investigates the effect of neoclassical transport on the core accumulation of W impurities by usin…
View article: Simulation of charge-exchange induced NBI losses on EAST
Simulation of charge-exchange induced NBI losses on EAST Open
The neutral beam injection is widely adopted in tokamaks as a key heating tool, playing a crucial role in generating burning plasmas. However, the loss of beam ions can damage the first wall and reduce the heating efficiency, resulting in …
View article: The role of divertor pumping combined with full drifts in particle exhaust and divertor plasma
The role of divertor pumping combined with full drifts in particle exhaust and divertor plasma Open
The effect of drifts combined with pumping on particle exhaust is assessed using the SOLPS-ITER code package, considering full drifts. Both drift and pumping speed S can affect particle exhaust. Drifts change the neutral density by influen…
View article: Simulation of the impact of particle recycling on the plasma in <scp>MPS‐LD</scp> device based on the <scp>BOUT</scp>++ <scp>LPD</scp> module
Simulation of the impact of particle recycling on the plasma in <span>MPS‐LD</span> device based on the <span>BOUT</span>++ <span>LPD</span> module Open
A linear plasma device (LPD) module has been developed under the BOUT++ framework to simulate plasma transport in the MPS‐LD. However, previously, the LPD module used a simplistic neutral particle model that only includes particle density …
View article: <scp>UEDGE</scp> modeling of plasma detachment of <scp>CFETR</scp> with <scp>ITER</scp>‐like divertor geometry by external impurity seeding
<span>UEDGE</span> modeling of plasma detachment of <span>CFETR</span> with <span>ITER</span>‐like divertor geometry by external impurity seeding Open
Efficient handling of high heat flux on the plasma‐facing components, particularly the divertor targets, poses a significant challenge for the Chinese Fusion Engineering Testing Reactor (CFETR) with fusion power of Gigawatt. This work inve…
View article: Effects of strike point location on the divertor particle and energy flux decay widths on EAST by experiment and SOLPS modeling
Effects of strike point location on the divertor particle and energy flux decay widths on EAST by experiment and SOLPS modeling Open
The new lower tungsten divertor of EAST uses a right-angle shape consisted by horizontal and vertical targets, which has the capacity of increasing the divertor closure. The strike point (SP) sweeping experiment is carried out to (1) avoid…
View article: The influence of E× B drift on tungsten target erosion and W impurity transport during neon seeding on EAST
The influence of E× B drift on tungsten target erosion and W impurity transport during neon seeding on EAST Open
Mitigating tungsten (W) wall erosion and core accumulation are vitally important for the steady-state operation of tokamaks. It is well known that drifts have a great impact on the transport of charged particles in the edge region, which c…
View article: Numerical simulation of erosion of misaligned W/Cu monoblocks caused by ITER-like type-Iedge localized modes
Numerical simulation of erosion of misaligned W/Cu monoblocks caused by ITER-like type-Iedge localized modes Open
The thermal performance of the divertor W/Cu monoblock tiles under the ITER-like transient events has been one of the main concerns for ITER plasma facing components. Owing to the assembly tolerances during installation, the leading edge c…
View article: The influence of full drifts on density shoulder formation at the midplane by numerical modeling
The influence of full drifts on density shoulder formation at the midplane by numerical modeling Open
The density shoulder at the midplane may influence core plasma confinement during H-mode discharge, thus affecting long-pulse steady-state discharge. Drifts in the edge plasma play a remarkable role in plasma transport and the divertor ope…
View article: Simulation of plasma transport in MPS-LD linear plasma device by using BOUT++
Simulation of plasma transport in MPS-LD linear plasma device by using BOUT++ Open
A linear plasma device (LPD) module based on the 2D transport module under the BOUT++ framework is developed in this paper to simulate plasma transport in the LPD. The LPD module includes three parts, i.e. magnetic field calculation, simul…
View article: Numerical simulation of hydrogen isotope bubbles evolution and their effect on fuel retention in tungsten
Numerical simulation of hydrogen isotope bubbles evolution and their effect on fuel retention in tungsten Open
The 2D Hydrogen Isotope Inventory Process code with Monte Carlo bubble growth model (HIIPC2D-MC) has been upgraded by adding surface retention and self-clustering bubble nucleation to study the evolution of hydrogen isotope (HI) bubble and…
View article: SOLPS-ITER simulations of high power exhaust for CFETR divertor with full drifts
SOLPS-ITER simulations of high power exhaust for CFETR divertor with full drifts Open
One of the major challenges for the Gigawatt-class Chinese Fusion Engineering Testing Reactor (CFETR) is to efficiently handle huge power fluxes on plasma-facing components , especially the divertor targets. This work investigates the effe…
View article: Physics design of new lower tungsten divertor for long-pulse high-power operations in EAST
Physics design of new lower tungsten divertor for long-pulse high-power operations in EAST Open
A new lower tungsten divertor has been developed and installed in the EAST superconducting tokamak to replace the previous graphite divertor with power handling capability increasing from <2 MW m −2 to ∼10 MW m −2 , aiming at achieving lon…