Many technical improvements were achieved recently in the HT-7 superconducting tokamak,
such as ICRF boronization, new water cooling graphite limiters which is instead of …

MARFE phenomena on HT-7 tokamak is studied in this paper. A best correlation has been
found between the total input ohmic power and the product of the edge line average density …

The control of the impurity level in magnetically confined plasmas is a critical issue for future
fusion devices. All the graphite tiles have been replaced by molybdenum tiles as limiter …

[en] The space-time profile of impurities has been measured with a multichannel visible
spectroscopic detect system and UV rotation-mirror system in the HT-6M tokamak. An ideal …

The structure of the operation region has been studied in the HT-7 superconducting
tokamak, and progress on the extension of the HT-7 ohmic discharge operation region is …

Effective ion charge (Z eff) is an important parameter in fusion research and can be used to
quantify impurity levels. Investigation into Z eff helps us to understand the impurity …

Behaviors of impurity and hydrogen recycling are investigated based on passive
spectroscopy measurement on HT-7. During LHCD long pulse discharges, impurity and …

Normal plasma recoveries after various events, such as after shutdown, various
boronization, oxidation and large air leak, were investigated in the 2007 campaign of HT-7 …

Experiments on the auxiliary heating, fueling of plasma and wall conditioning were carried
out on HL-1M. ECRH experiments were conducted successfully with Te increase more than …

Impurity behavior has been extensively studied in both theoretical and experimental fields in
fusion research because impurities play an important role on the plasma performance [1, 2] …