Conveners
A4: Plasma and Nuclear Fusion
- Min Medhisuwakul
Simulations of Thailand tokamak plasmas are carried out using a CRONOS integrated predictive modelling code. The code is designed in a modular structure, consisting of a 1D transport solver with general 2D magnetic equilibria, and including of several heat, particle and impurities transport models as well as heat, particle and momentum sources. In this work, a combination of a mixed...
This work uses CRONOS integrated predictive modelling code to simulate ion and electron temperatures of plasma in conditions for a small tokamak to be installed at Thailand Institute of Nuclear technology (TINT),under the collaboration of the Center for Plasma and Nuclear Fusion Technology (CPaF). Fusion reactions can be created in tokamak but each experiment can rather cost a huge budget. So...
As Thailand has been preparing to operate a small tokamak, the quantitative information about the plasma in the edge and at the material surface would be insightful for future experimental operation. In this work, we numerically investigate the particle and heat exhausted from the core plasma to the limiter by employing a simple two-points model. It is found that the electron temperature at...
Integrated predictive modeling code TASK/TR is used to investigate the impact of pellet injection in Thailand future tokamak. In the core region, plasma profiles are predicted by a combination of the current diffusive ballooning transport model and neoclassical transport. The pellet ablation in the background plasma is described using the neutral gas shielding model with the $\nabla B $ drift...
The air plasma has been developed as the effective medical instruments due to providing breakthrough solutions to challenging medical problems. Air plasma selectivity and the emerging of reactive oxygen and nitrogen species (RONS) play a key role in numerous biochemical pathways in living organisms i.e. nitric oxide (NO) contributes to promote wound healing processes, hydroxyl radicals ($OH$)...
Atmospheric plasma such as dielectric barrier discharge(DBD) has ability to eliminate bacteria and fungus by cell wall or cell membrane disruption directly. Ozone(O_3) is obviously created via process of DBD plasma generation and it is very harmful to human if there is more than 0.25 ppm. The objective of this research is to reduce ozone from dielectric barrier discharge plasma through...
This research aims to study the effects of input sources on L-H transition as well as width and height of pedestal in tokamak fusion plasmas based on three-field bifurcation model. Three transport equations including thermal, particle density and toroidal momentum density are solved simultaneously including residual stress term and convection term, resulting in the prediction of plasma...
In this research, neutrons and gamma rays at the neutron radiography station of Thai Research Reactor, TRR-1/M1, at Thailand Institute of Nuclear Technology (Public Organization) were characterized. The aim was to design an appropriate outer neutron collimator at the neutron radiography station for collimating neutron beam to the radiographic position, by reducing radiation scattering and...
Gamma irradiation has long been serving as one alternative preservation method for food and agriculture products. Initial physical interactions of gamma with biomaterials lead through radical formation, depolymerization, and molecular changes to eventual sterilization, decontamination and preservation. An effective penetration of gamma radiation homogenize the effects throughout the...
