Postgraduate research 

Title : Development of Antikaon-nucleon potential based on chiral SU(3) symmetry

My postgraduate work have investigated the potential proposed by Akaishi and Yamazaki in coordinate space for the coupled $\bar{K}N-\pi\Sigma-\pi\Lambda$ system. The potential is expected to reproduce the low-energy scattering data of the reactions $K^{-}p \rightarrow K^{-}p$, $\bar{K}^{0}n$, $\pi^{0}\Sigma^{0}$, $\pi^{+}\Sigma^{-}$, $\pi^{-}\Sigma^{+}$ and $\pi^{0}\Lambda$, predicted by other theoretical approaches. I have derived the dynamical equations for the coupled-channel $\bar{K}N$ system and evaluate the cross sections of the reactions $K^{-}p \rightarrow K^{-}p$, $\bar{K}^{0}n$, $\pi^{0}\Sigma^{0}$, $\pi^{+}\Sigma^{-}$, $\pi^{-}\Sigma^{+}$ and $\pi^{0}\Lambda$, with a phenomenological potential for the coupled $\bar{K}N$ system.

Undergraduate research

Title : Monte Carlo simulation of neutron irradiation by a TRIGA MARK III research reactor using MCNP code

My undergraduate work have studied the neutron flux from a research reactor of the type TRIGA-MARK III developed by General Atomics (GA) of the US. The core is modeled after the one of Thai Research Reactor (TRR-1/M1) which is the only research reactor in Thailand. Calculations were done using the simulation program MCNP-4C which applies the Monte Carlo principle to simulate how neutrons interact with materials. We built a three-dimensional model which consists of the components of the reactor. Neutrons from the fission reaction inside the core interact with many layers of fuel and non-fuel elements. Using the continuous energy cross section library and the calculation by KCODE we obtained the value of the effective multiplication factor (Keff) and neutron fluxes at various locations, which include the control rod, inside and outside the irradiation tubes, and Lazy Susan. Results were calculated with the control rod set at seven different vertical positions. When the control rod moves down, the neutron dose decreases. The neutron dose at the top of the water level is found to be very low. From these results, we can evaluate the conditions appropriate for radiation work in and around the reactor core.

Intern research

Title : Cross Section Calculation of High Energy Particles Collider

My intern work have studied the experimental from Large Hadron Collider (LHC) in European Organization for Nuclear Research (CERN) Laboratory, to find out “what happens in the first 3 seconds of origin of the universe?”. In this work, the program was written in C language to calculate the cross section values which showed the possibility for create Charm Quark and Anti-Charm Quark in the colliding interactions of Up Quark and Anti-Up Quark from the two proton beams. The quantity and types of particles related to cross section values and the momentum values would make us understand the forms and patterns of particles that took place. Based on the study, it was found that there was very little mass of colliding particles , and that meant kinetic energy or momentum of up quark colliding with anti-up quark had to have enough values to recombine with its own mass before forming Charm Quark and Anti-Charm Quark. The suitable values of both kinetic energy and momentum would be in the range of 2200 MeV/c$^2$; at other values, it was less likely that the particles would form. Besides, in the written program, the direction of particle collisions was predetermined; and since the value of Phe angle was zero, the cross section value obtained was only the function of Zeta angle; and for the suitable scattering angle, the particle formed is likely to scatter in the direction that the particle comes in or scatter to opposite direction.