Speaker
Mitsutaka Isobe
Description
See the full Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/P2.1043.pdf
NIFS-SWJTU joint project
for Chinese First Quasi-axisymmetric Stellarator (CFQS)
M. Isobe1,2, A. Shimizu1, H. Liu3, S. Okamura1, and Y. Xu3
1 National Institute for Fusion Science, National Institutes of Natural Sciences, Toki, Japan
2 SOKENDAI (The Graduate University for Advanced Studies), Toki, Japan
3 Institute of Fusion Science, Southwest Jiaotong University, Chengdu, People’s Republic
of China
National Institute for Fusion Science (NIFS) established an international academic
cooperation agreement with Southwest Jiaotong University (SWJTU) in July, 2017, for
moving towards the first helical plasma experimental research in the People’s Republic of
China. NIFS and SWJTU initiated the implementation of physics and engineering designs
of the new helical device called Chinese First Quasi-axisymmetric Stellarator (CFQS)
collaboratively. From now, the two institutes will undertake construction of the CFQS,
plasma heating and diagnostics technical development, and plasma experiments jointly. The
CFQS will be constructed in SWJTU. The magnetic configuration of CFQS is quite
different from that of the Large Helical Device (LHD). Although the CFQS is tokamak-like
in the magnetic configuration, it does not require a net plasma current to confine a high-
temperature plasma as its name suggests. It is characterized by low-aspect ratio, weak
magnetic shear, and significantly reduced neoclassical transport and toroidal viscosity. By
implementing plasma experimental research based upon a device designed using new
concepts in new collaborative design and construction, we can complement experimental
research performed on the LHD. NIFS is going to utilize existing resources of Compact
Helical System (CHS) of NIFS effectively, i.e., vacuum pumping system, gyrotron for
electron cyclotron resonance heating, and key diagnostics such as heavy ion beam probe.
Relocation of a neutral beam injector of CHS will be also considered after the
commissioning stage.
