Speaker
Description
Thailand Institute of Nuclear Technology (TINT) is setting up the first tokamak in Thailand, dubbed as Thailand Tokamak I (TT-1), at its Nakorn Nayok site. Core components of TT-1 are taken from the previously known HT-6M tokamak, donated by Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), China. These core components are furnished with four up-to-date sub-systems. Fueling system is one of them and is important to maintain plasma density and improve plasma performance for high efficiency. Among three methods for fueling in a tokamak, namely, gas puffing (GP), supersonic molecular beam injection (SMBI), and pellet injection (PI); SMBI is chosen for TT-1. In this contribution, we present a simulation study of single-pulse SMBI for TT-1 to achieve plasma density of $ 10^{19} m^{-3}$, 100 kA of plasma current, and for 100 ms pulse length. We have found that using SMBI injection speed of 600 m/s, the penetration depth is around 6 cm into the plasma. Therefore, the SMBI is sufficient to penetrate into the plasma core of small tokamak like TT-1. A comparison with other tokamaks of similar size and performance is also made in this contribution.
