Nuclear Fusion (Jan 2023)
Identification of core ion cyclotron instabilities on HL-2A tokamak
- Linzi Liu,
- Ruihai Tong,
- Xiaolan Zou,
- Haotian Chen,
- Yang Chen,
- Guanqi Dong,
- Guangzhou Hao,
- Xiaoxue He,
- Yuxiao Han,
- Xiaoquan Ji,
- Anshu Liang,
- Bo Li,
- Jiquan Li,
- Yonggao Li,
- Liang Liu,
- Zhongbin Shi,
- Huiling Wei,
- Fan Xia,
- Guoliang Xiao,
- Jiao Yin,
- Deliang Yu,
- Boda Yuan,
- Yiren Zhu,
- Wulyu Zhong,
- Min Xu,
- HL-2A team
Affiliations
- Linzi Liu
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Ruihai Tong
- ORCiD
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Xiaolan Zou
- CEA, IRFM , F-13108 Saint-Paul-lez-Durance, France
- Haotian Chen
- ORCiD
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Yang Chen
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Guanqi Dong
- ORCiD
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Guangzhou Hao
- ORCiD
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Xiaoxue He
- ORCiD
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Yuxiao Han
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China; University of Science and Technology of China , Hefei 230026, China
- Xiaoquan Ji
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Anshu Liang
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Bo Li
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Jiquan Li
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Yonggao Li
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Liang Liu
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Zhongbin Shi
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Huiling Wei
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Fan Xia
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Guoliang Xiao
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Jiao Yin
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Deliang Yu
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Boda Yuan
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Yiren Zhu
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Wulyu Zhong
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- Min Xu
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- HL-2A team
- Southwestern Institute of Physics , PO Box 432, Chengdu 610041, China
- DOI
- https://doi.org/10.1088/1741-4326/acf32a
- Journal volume & issue
-
Vol. 63,
no. 10
p. 104004
Abstract
Instabilities in multiplies of ion cyclotron frequency range are identified and termed as core ion cyclotron emission (ICE) in recent HL-2A neutral beam injection heated experiments. Characteristics of the core ICE are presented, including frequency dependence and harmonics features. The detected frequencies are found to agree well with the multiplies of the deuterium cyclotron frequency around the magnetic axis. Additionally, the core ICE exhibits a predominantly compressional property. Observations of distinct spectrum features and individual excitation of each harmonic have demonstrated that the core ICE harmonics are independent multiple modes. Notably, the variation of plasma current is a necessary condition for exciting the 4th harmonic ICE individually. The results suggest that the drive mechanism of core ICE varies between the different frequency ranges.
Keywords
- energetic particle
- tokamak
- ion cyclotron instabilities
- magnetically controlled fusion
- ion cyclotron emission
