EPJ Web of Conferences (Jan 2017)

Development and Application of 3.7GHz LHCD system on HL-2A and Development of RF Heating system on HL-2M

  • Bai XingYu,
  • Lu Bo,
  • Zeng Hao,
  • Liang Jun,
  • Wang Chao,
  • Xiao GuoLiang,
  • Wang He,
  • Chen YaLi,
  • Wang JieQiong,
  • Feng Kun,
  • Song ShaoDong,
  • Huang Mei,
  • Rao Jun,
  • Song XianMing,
  • Mao Rui,
  • Cheng Jun,
  • Zhang YiPo,
  • Yu DeLiang,
  • Zhou Yan,
  • Shi ZhongBing,
  • Ekedahl Annika,
  • Hillairet Julien,
  • Bertrand Emmanuel,
  • Delpech Lena,
  • Giruzzi Gerardo,
  • Hoang Tuong,
  • Magne Roland,
  • Mazon Didier,
  • Peysson Yves,
  • Zou XiaoLan

DOI
https://doi.org/10.1051/epjconf/201715702001
Journal volume & issue
Vol. 157
p. 02001

Abstract

Read online

The first Lower Hybrid (LH) experiments were carried out with a Passive-Active Multijunction (PAM) launcher in H-mode plasmas. The experiments were performed on the HL-2A tokamak with the new 3.7 GHz LHCD system, installed and tested by SWIP in collaboration with CEA/RFM. The ELMs and local gas impact on LH power coupling was studied in the experiments. The coupled LH power in HL-2A was 200-500kW at large gap at the first experiments and reaches 900 kW now in H-mode, while it reaches 1MW in L-mode. The LH experiments on HL-2A show that the PAM launcher is a viable concept for high performance scenarios. The LH power can be coupled at large plasma-launcher gap, and assist in triggering and sustaining H-modes. Finally, an overview of the RF heating systems for the tokamak HL-2M is given. HL-2M will dispose of a 4 MW LH system and a 8 MW ECRH system, both of which are currently under installation at SWIP.