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@ARTICLE{WANG:904082,
author = {WANG, Hao and LIANG, Yunfeng and Xu, Shuai and JIANG,
Zhonghe and FENG, Yuhe and KNIEPS, A. and DREWS, P. and
YANG, Jie and XU, Xin and LONG, Ting and JIAO, Shaodong and
ZHANG, Xiaolong and HAO, Zhigang and YANG, Qinglong and
CHEN, Zhipeng and CHEN, Zhongyong and WANG, Nengchao and
YANG, Zhoujun and ZHANG, Xiaoqing and DING, Yonghua and PAN,
Yuan},
title = {{I}nfluence of the {X}-point location on edge plasma
transport in the {J}-{TEXT} tokamak with a high-field-side
single-null divertor},
journal = {Plasma science $\&$ technology},
volume = {23},
number = {12},
issn = {1009-0630},
address = {Bristol},
publisher = {IOP},
reportid = {FZJ-2021-05652},
pages = {125103 -},
year = {2021},
abstract = {High-density experiments in the high-field-side mid-plane
single-null divertor configuration have been performed for
the first time on J-TEXT. The experiments show an increase
in the highest central channel line-averaged density from
$2.73\,\times \,{10}^{19}\,{{\rm{m}}}^{-3}$ to $6.49\,\times
\,{10}^{19}\,{{\rm{m}}}^{-3}$, while the X-point moves away
from the target by increasing the divertor coil current. The
corresponding Greenwald fraction rises from 0.50 to 0.79.
For the impurity transport, the density normalized radiation
intensity (absolute extreme ultraviolet and soft x-ray) of
the central channel density decreased significantly (>50\%)
with an increase in the plasma density. To better understand
the underlying physics mechanisms, the 3D edge Monte Carlo
code coupled with EIRENE (EMC3- EIRENE) has been implemented
for the first time on J-TEXT. The simulation results show
good agreement with the experimental findings. As the
X-point moves away from the target, the divertor power decay
length drops and the scrape-off layer impurity screening
effect is enhanced.},
cin = {IEK-4},
ddc = {530},
cid = {I:(DE-Juel1)IEK-4-20101013},
pnm = {134 - Plasma-Wand-Wechselwirkung (POF4-134)},
pid = {G:(DE-HGF)POF4-134},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000725865800001},
doi = {10.1088/2058-6272/ac224a},
url = {https://juser.fz-juelich.de/record/904082},
}