摘要
Researches on plasma-facing materials/components(PFMs/PFCs)have become a focus in magnetic confinement fusion studies,particularly for advanced tokamak operation scenarios.Similarly,spacecraft surface materials must maintain stable performance under relatively high temperatures and other harsh plasma conditions,making studies of their thermal and ablation resistance critical.Recently,a low-cost,low-energy-storage for superconducting magnets,and compact linear device,HIT-PSI,has been designed and constructed at Harbin Institute of Technology(HIT)to investigate the interaction between stable high heat flux plasma and PFMs/PFCs in scrape-off-layer(SOL)and divertor regions,as well as spacecraft surface materials.The parameters of the argon plasma beam of HIT-PSI are diagnosed using a water-cooled planar Langmuir probe and emission spectroscopy.As magnetic field rises to 2 T,the argon plasma beam generated by a cascaded arc source achieves high density exceeding 1.2×10^(21)m^(-3)at a distance of 25 cm from the source with electron temperature surpassing 4 eV,where the particle flux reaches 10^(24)m^(-2)s^(-1),and the heat flux loaded on the graphite target measured by infrared camera reaches 4 MW/m^(2).Combined with probe and emission spectroscopy data,the transport characteristics of the argon plasma beam are analyzed.
作者
Tao HUANG
Qiuyue NIE
Cheng CHEN
Lin NIE
Wei ZHAO
Tao JIANG
Yang LIU
Xu ZHAO
Feng LI
Xiaogang WANG
黄韬;聂秋月;陈晟;聂林;赵伟;姜涛;刘洋;赵旭;李丰;王晓钢(School of Physics,Harbin Institute of Technology,Harbin 150001,People’s Republic of China;School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150001,People’s Republic of China;Laboratory for Space Environment and Physical Science,Harbin Institute of Technology,Harbin 150001,People’s Republic of China;Southwestern Institute of Physics,Chengdu 610041,People’s Republic of China)
基金
supported by National Natural Science Foundation of China(No.12105067)
the ITER Organization and China Domestic Agency for the support of this work(No.ITER5.5.P01.CN.05)。
作者简介
corresponding author:Qiuyue NIE,E-mail:nieqiuyue@hit.edu.cn。
