A5008527546- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Nuclear Physics and Applications
- Metal and Thin Film Mechanics
- Radiation Therapy and Dosimetry
- Semiconductor materials and devices
- Superconducting Materials and Applications
- Electric and Hybrid Vehicle Technologies
- Plasma Diagnostics and Applications
- Magnetic confinement fusion research
- Gyrotron and Vacuum Electronics Research
- Advanced Materials Characterization Techniques
- Fusion materials and technologies
- Blood donation and transfusion practices
- Diamond and Carbon-based Materials Research
- Vacuum and Plasma Arcs
- Gastroesophageal reflux and treatments
Chinese Academy of Sciences
2018-2025
China Spallation Neutron Source
2018-2025
Spallation Neutron Source
2025
Institute of High Energy Physics
2018-2024
Non-evaporable getter (NEG) films require thermal vacuum activation prior to their use in high environments. The degree of difficulty is influenced by the properties passivation layer, but there limited information about its composition. purpose this study investigate formation mechanism and clarify issue. film microstructure was investigated scanning electron microscopy (SEM) grazing incidence X-ray diffraction (GIXRD). quantum chemical approach a single-metal-atom catalytic model were used...
The China Spallation Neutron Source (CSNS) is an accelerator-based multidisciplinary user facility located in Dongguan, Guangdong, China. It was launched 2011 and started delivering neutron beams to users March 2018. CSNS complex consists of H− linear accelerator, a rapid cycling synchrotron that accelerates the beam 1.6 GeV, solid tungsten target station, various instruments for spallation applications. This paper focuses on vacuum system from ion source Drift Tube Linac, aiming review...
Non-evaporable getter (NEG) films are widely used in high vacuum technologies and have played a critical role applications requiring ultrahigh conditions, such as accelerator systems. The passivation layers on the film surface due to air exposure generally require thermal activation. This research aims elucidate key factor activation of TiZrV NEG from perspective atomic-scale microstructures. characteristics element distributions, morphologies, crystalline states before after were...
Abstract The fourth-generation light source or future particle accelerators have compact vacuum systems, resulting in a small flow conductance of the beam chamber. development NEG (Non-Evaporable Getters) films technology with distributed pumping is good solution. This can obtain pressure distribution gradient and an ultra-high 10 -8 Pa inside chambers. In magnetron sputtering process for coating, inhomogeneity magnetic field at edge solenoid key parameter affecting stability discharge...