A5008779083- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Superconducting Materials and Applications
- Magnetic confinement fusion research
- Ionosphere and magnetosphere dynamics
- Gyrotron and Vacuum Electronics Research
- Laser-Plasma Interactions and Diagnostics
- Advancements in Photolithography Techniques
- Advanced X-ray and CT Imaging
- Photocathodes and Microchannel Plates
- Smart Grid Security and Resilience
- Particle Detector Development and Performance
- Superconducting and THz Device Technology
- Power Line Communications and Noise
- Scientific Computing and Data Management
- Atmospheric and Environmental Gas Dynamics
- Electron and X-Ray Spectroscopy Techniques
- Power Systems and Technologies
- Smart Grid and Power Systems
- Plasma Diagnostics and Applications
- Engineering and Test Systems
- Polysaccharides and Plant Cell Walls
- Plant responses to water stress
- Laser Design and Applications
- Distributed and Parallel Computing Systems
Huazhong Agricultural University
2025
University of Science and Technology of China
1990-2024
Guilin University of Electronic Technology
2024
National Synchrotron Radiation Laboratory
1990-2024
Hefei Institutes of Physical Science
2023
Institute of Plasma Physics
2015-2023
Chinese Academy of Sciences
2014-2023
After in situ baking, Non-evaporable getter (NEG) alloys are able to pump most of the gases present ultra-high vacuum systems. Titanium-Zirconium-Vanadium (TiZrV) NEG films, which exhibits lowest activation temperature, have been deposited on inner wall a stainless steel pipe via DC magnetron sputtering. Characterization TiZrV, including pumping performance, photon stimulated desorption (PSD) and secondary electron yield (SEY) carried out. A brief summary results is given as follows.
Abstract Hefei Light Source II (HLS-II) is a vacuum ultraviolet synchrotron light source. The control system of HLS-II distributed based on the experimental physics and industrial (EPICS). alarm responsible for monitoring state facility distributing message in time. It facilitates operator to troubleshoot problem efficiently, so as improve availability HLS-II. Phoebus/Alarms (Alarms) latest software released EPICS community. Based Alarms, designed, developed deployed. distribution strategy...
This paper designs a smart grid energy-saving control system for real-time video streaming, named Eco-VisionGrid. According to the stream collected by camera, through location analysis model and intelligent lighting deployed on edge device, it analyzes information of person forms best decision. Preliminary experimental results show that Eco-VisionGrid can effectively implement power regulation management.
A dispersion interferometer (DI) system is one of the more promising density measurement methods for large, high fusion devices as they have considerable immunity to mechanical vibration and a shorter wavelength which helps prevent fringe jump errors. In this paper, DI with photoelastic modulator (PEM) has been designed measurements on EAST tokamak vertical double pass optical layout. The bench test all components was done, especially specific nonlinear crystal system. second hamonic power...
Abstract Hefei Light Source II (HLS-II) is a vacuum ultraviolet synchrotron light source. The HLS-II alarm system responsible for monitoring the alarms of process variables and distributing events in time. Nuisance reduce functionality, credibility trustworthiness system. This paper proposes method design deadband delay timers to remove nuisance expected ratio. An optimal width calculated while balancing effects reducing occurrence number increasing duration events. If ratio not met after...
An active distribution network (ADN) planning and design architecture was developed. The content requirements of AND were given from the aspects power grid status, load forecasting balance. Based on probabilistic output interval distributed generation, formulation method coordination plan studied. Finally, electrical calibration presented to verify reasonableness plan.
In this paper, we experimentally verify the feasibility of replacing individual retro reflectors (RRs) with reflector array (RRA) in EAST POlarimeter/INTerferometer (POINT) system, by considering mode transformation and power wastage. Being exposed to plasma environment directly, RRs have risks deformation, erosion deposition. RRA is preferable because it can be installed within a smaller space provide gap several centimeters for shutter design. This protective structure reduce cost device...
Abstract In this study, we address the design challenges related to hyperparameters, such as number of layers and nodes in deep neural networks, by introducing an Improved Genetic Algorithm-based method for optimizing network structures (IGA-DNN). We apply practical problem β function correction particle accelerators develop a storage ring scheme based on IGA-DNN. compare our approach with traditional genetic algorithm-optimized networks evaluate its performance. Our results reveal that...
In order to cure and damp coupled bunch (CB) instabilities caused by the high modes (HOMs) of RF cavity resistive wall impedance Ring vacuum chamber. HOMs are ineluctable during operation accelerator. An observer system characterized measurement transverse β oscillation longitudinal synchrotron phase has been constructed commissioned at Hefei Light Source (HLS) [1, 2]. A bunch-by-bunch feedback is under construction. The design development observe systems, as well diagnostics results machine...
Abstract A multi-channel POlarimeter-INTerferometer (POINT) system has been constructed in the core region of Experimental Advanced Superconducting Tokamak (EAST) plasma for electron density profile and current measurements, with a spatial resolution 8.5 cm. To explore small scale fluctuation phenomena induced by MHD instabilities effects, higher responsivity detection is required. novel line array scheme POINT proposed. By replacing single Schottky mixer highly integrated HEMT detector at...
In Hefei light source (HLS), coupled-bunch instabilities are major limiting factors in achieving higher beam intensity while maintaining good quality. To Measure and suppress instabilities, turn-by-turn (TBT) measurement bunch-by-bunch(BxB) & feedback system under commission [1][2]. The design of the two systems primary experiment results is presented. Measurement detail analysing injection status will also be shown.
A novel pulse septum magnet for the injection system of NSRL storage ring which is a dedicated synchrotron radiation facility was described in this paper. The main parameters and measured results including its magnetic field distribution vacuum characteristic were given also. After making shim stray near current strip to gap reduced 0.1%, pressure chamber, installed, less than 5/spl times/10/sup -10/ mbar after baking. Now playing an important part getting high efficiency accumulating during...