Preliminary Study and Design of Fuelling Systems of Thailand Tokamak I with Supersonic Molecular Beam Injection

Journal article

Authors/Editors

Strategic Research Themes

Publication Details

Author list: Jiraporn Promping;Apiwat Wisitsorasak;Boonyarit Chatthong;Kewalee Nilgumhang;Arlee Tamman;Pasit Wonghabut;Wutthichok Sangwang;Kamtorn Saidarasamoot;Nopporn Poolyarat;Somsak Dangtip

Publication year: 2021

Journal: วารสารฟิสิกส์ไทย (0857-1449)

Volume number: 38

Issue number: 3

Start page: 111

End page: 122

Number of pages: 12

ISSN: 0857-1449

URL: https://ph01.tci-thaijo.org/index.php/ThaiJPhys/article/view/244512

Abstract

Thailand Institute of Nuclear Technology (TINT) is setting up the first tokamak in Thailand, dubbed as Thailand Tokamak 1 (TT-1), at Nakorn Nayok site. Main components of TT-1 are taken partially from the previously known HT-6M tokamak, donated by Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP), China. These components are then furnished with four up-to-date sub-systems. Fueling system is one of the four sub-systems 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), the SMBI is chosen for TT-1. In this contribution, we present a design and planning of SMBI for TT-1 to achieve plasma density of 1019 m-3, 100 kA of plasma current and for 100 ms pulse length. We have found that the SMBI should be sufficiently penetrating into the plasma core. A comparison with other tokamaks of similar size and performance is also made in this contribution.

Keywords

การยิงลําอนุภาคด้วยความเร็วเหนือเสียง, เครื่องโทคาแมค, โทคาแมคเครื่องแรกของประเทศไทย, ระบบเติมเชื้อเพลิงพลาสมา