Time-resolved deuterium–deuterium fusion born 1 MeV triton confinement study in EAST deuterium plasma
Year: 2024
Type: article
Abstract: A time-resolved deuterium–deuterium (D–D) fusion-born triton confinement study, aimed at understanding alpha particle confinement ability, was performed in Experimental Advanced Superconducting Tokamak (EAST) deuterium plasmas for the first time. A scintillating fiber detector was developed for measuring the secondary deuterium–tritium (D–T) neutrons, which provide evidence of triton slowdown, in EAST. The D–D fusion-born triton confinement experiment was performed by measuring secondary D–T neutrons in D-beam-heated D plasma with a plasma current of 400 kA. The secondary D–T neutron signal and its time evolution were obtained using pulse height discrimination analysis. The D–T neutron rate was calculated using the classical energetic ion confinement model to clarify the D–T neutron measurements. The secondary D–T neutron emission rate obtained from the numerical simulation closely agrees with the experimentally obtained results when considering the prompt loss of the tritons.
Authors: Kunihiro Ogawa, Guoqiang Zhong, LongYong Liao, Weikun Chen, Ruijie Zhou, Kai Li, Eiji Takada, Siriyaporn Sangaroon, Liqun Hu, Mitsutaka Isobe
Institutions: National Institutes of Natural Sciences, The Graduate University for Advanced Studies, SOKENDAI, National Institute for Fusion Science, Chinese Academy of Sciences, Hefei Institutes of Physical Science, Institute of Plasma Physics, Institute of Energy, Hefei Comprehensive National Science Center, University of Science and Technology of China, West Anhui University, National Institute of Technology, Mahasarakham University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,165
OpenAlex ID: W4405623909