Speaker
Peng Chen
Description
See the full Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/P1.1012.pdf
Use spectrum simulation code to test D-alpha spectrum of fast ion design
work on HL-2A
P. Chen1, J. Wu1, L. M. Yao1, Y.J. Chen1, H. Wen1, M. T. Zou1, W. Zhang1, J. T. Shen1, H. Y.
Zhou2
1
School of Physics, University of Electronic Science and Technology of China, Chengdu,
China
2
Southwestern Institute of Physics, Chengdu, China
Abstract—In magnetic confined fusion devices, the fast ion is the main source for the
self-sustained burning phases, so it is very important to understand the behavior of fast ion. On
HL-2A Tokamak device, the fast ions were also generated by neutral beam heating, microwave
heating and fusion. This paper was focus on the fast deuterium ion simulation and experimental
design work. When the fast ions collide with the neutral beam, some fast ions neutralize, then
radiate electromagnetic wave, some of which is in the visible spectrum, but the intensity of this
light is usually below the continuum radiation level and is about two orders of magnitude lower
than the thermal charge-exchange spectrum (CXS), beam emission spectrum (BES). To
investigate the fast ion behavior, this paper dedicated to evaluate the fast ion spectrum on
HL-2A, one is using the simulation of spectra (SOS) program to simulate the spectra, and the
second is to extract the fast ion spectrum by fitting the experimental data of BES spectrum.
