Conveners
A4: Plasma and Nuclear Fusion
- Peera Pongkitiwanichakul (Mahidol University)
- Nopparit Somboonkittichai (Department of Physics, Faculty of Science, Kasetsart University)
A new portable low temperature plasma jet system is developed using ambient air as plasma gas. This atmospheric pressure plasma source is rich sources of reactive oxygen and nitrogen species (RONS) which play crucial roles in biomedical applications. Especially, Nitric oxide radical (NO), hydroxyl radical (OH) and ozone ($O_3$) in this plasma source have been suggested to be powerful agents in...
In magnetized plasma systems, magnetic reconnection is the most important process in converting the magnetic energy into the kinetic energy of plasma. It is conventionally thought that the outflow speed and the reconnection rate depend only on the strength of the upstream magnetic field and the upstream plasma density. However, using fully kinetic particle-in-cell simulations of collisionless...
The plasma focus is a device that uses high voltage and electromagnetic force to induce plasma generation and acceleration, in order to cause nuclear reactions. Radiation of various types (X-ray, gamma ray, electrons, ions, neutrons) can be generated using this method during the pinch phase, thus making the plasma focus able to serve as a radiation source. Material testing, modification, and...
This work investigates performance optimization of ITER and DEMO plasmas in the presence of internal transport barrier. The optimization is carried out using simulation results of BALDUR integrated predictive modelling code. In these simulations, a combination of a neoclassical transport model NCLASS and an anomalous transport model Multimode model is used. The boundary condition is described...
The impacts of pellet mass ablation and deposition that consider the effect of the
particle drift due to the gradient of magnetic field are investigated for
International Thermonuclear Experimental Reactor (ITER) and Demonstration
Nuclear Fusion Power Stations (DEMOs). In the core area, the plasma profiles are
predicted by the TASK/TR code in which the core transport models consist of...
This research study plasma performance in fusion Tokamak system by investigating parameters such as central plasma pressure and particle density in the presence of an ETB (edge transport barrier) and an ITB (internal transport barrier). The plasma is modeled based on bifurcation concept using a suppression function that can result in formation of transport barriers. In this model, thermal and...
A plasma focus (PF) device is device to generate plasma which is applied in ion acceleration, material surface modification and fusion reaction source. For plasma fusion is interest topic to study. Calculating plasma parameters such as plasma density and plasma temperature is importance to find the optimum condition for their applications. In this research uses Lee model code to calculate the...
Laser-produced plasma experiments are widely conducted for several purposes ranging from using for initial confinement plasma to the comparison with supernovae. The experiments themselves cannot tell the underlying microscopic phenomena therefore we use particle-in-cell simulations to demonstrate the dynamics of particles and electromagnetic fields. In this work, we focus on the energy...
The Deuterium-Tritium (DT) reaction is the key reaction in fusion reactors; leading to neutron and helium production. Most of the fusion energy (>80%) in such reaction is carried away by neutron. Conversion of neutron kinetic energy to any other usable form is very important for power generation in fusion reactors. The successful reactor design is thus highly dependent on this energy...
