The high confinement regime (H-mode) in the tokamak has been accompanied by a MHD (magnetohydrodynamic) instability labeled edge-localized-modes (ELMs). Present researches on ELM control mostly aims at reducing the heat or particle flux. Nevertheless it is not yet clear about the W sputtering process by the ELM heat and particle flux as well as the effects of ELM control on W sputtering erosion. That will bring an uncertainty to both the control of W impurity source and the evaluation on the divertor lifetime.
Creating an efficient fusion plasma in a tokamak requires balancing competing temperature needs of the plasma – extremely hot in the core to allow fusion to occur but cool enough at the edge not to damage the walls of the device. An international team of researchers at the DIII-D National Fusion Facility has developed an innovative solution to this challenge that uses active injection of gases to cool the plasma in the edge region of an advanced tokamak plasma, reducing the heat before it reaches the walls of the tokamak. Even better, they have done this while maintaining high plasma performance in the core region.
Recently, a research group led by Prof. ZHANG Haimin from the Institute of Solid State Physics, Hefei Institute of Physical Science (HFIPS) reported a highly efficient electrocatalyst for oxygen evolution reaction by in situ generation and systematically illustrated the origin of its excellent performance, which provided a new method for exploiting excellent OER catalysts.
The assembly of primary particles into uniform superstructures represent a compelling strategy to create new functions by utilizing interparticle electromagnetic coupling or other synergistic effects. However, creating a universal, scalable, and robust self-assembly method of superstructures at scales ranging from nano- to macroscopic lengths remain elusive.
Last week,, science islanders witnessed the second batch of quadrupole magnets delivery. This equipment which was developed by Institute of Plasma Physics (ASIPP), Hefei Institute of Physical Science (HFIPS) will be delivered to Beijing as planned, for the High Energy Proton Source (HEPS) project.