Space-resolved extreme ultraviolet spectrometer system for impurity behavior research on experimental advanced superconducting Tokamak

2013 ◽  
Vol 700 ◽  
pp. 86-90 ◽  
Author(s):  
Y. Shen ◽  
X. Du ◽  
W. Zhang ◽  
Q. Wang ◽  
Y. Li ◽  
...  
Keyword(s):  
Extreme Ultraviolet ◽  
Ultraviolet Spectrometer ◽  
Spectrometer System ◽  
Superconducting Tokamak

Impacts of resonant magnetic perturbations on edge carbon transport and emission on EAST with EMC3-EIRENE modelling

2020 ◽  
Vol 86 (3) ◽  
Author(s):  
S. Y. Dai ◽  
H. M. Zhang ◽  
B. Lyu ◽  
L. Wang ◽  
Y. Feng ◽  
...  
Keyword(s):  
Extreme Ultraviolet ◽  
Three Dimensional ◽  
Edge Plasma ◽  
Parameter Study ◽  
Transport Code ◽  
Magnetic Perturbations ◽  
Ultraviolet Spectrometer ◽  
Spectrometer System ◽  
Resonant Magnetic Perturbations ◽  
Carbon Transport

The modelling of edge carbon transport and emission on EAST tokamak under resonant magnetic perturbation (RMP) fields has been conducted with the three-dimensional edge transport code EMC3-EIRENE. The measured vertical distribution of CVI emission by the extreme ultraviolet spectrometer system for the perturbed case shows a reduction in the CVI emission by 20 % compared to the equilibrium case. The chord-integrated CVI emission can be reconstructed by EMC3-EIRENE modelling, which presents an increase in the CVI emission with RMP fields. The discrepancy between experiments and simulations has been investigated by parameter study to examine the sensitivity of the simulation results on the edge plasma conditions and the impurity perpendicular transport. It is found that the variation of edge plasma conditions for the equilibrium case cannot resolve the discrepancy in the CVI emission between simulations and measurements. The simulations with enhanced impurity perpendicular transport coefficient allows a reasonable agreement with the measured reduction of CVI emission.

scholarly journals A high resolution extreme ultraviolet spectrometer system optimized for harmonic spectroscopy and XUV beam analysis

2019 ◽  
Vol 90 (2) ◽  
pp. 023108 ◽  
Author(s):  
Martin Wünsche ◽  
Silvio Fuchs ◽  
Thomas Weber ◽  
Jan Nathanael ◽  
Johann J. Abel ◽  
...  
Keyword(s):  
High Resolution ◽  
Extreme Ultraviolet ◽  
Beam Analysis ◽  
Ultraviolet Spectrometer ◽  
Spectrometer System

scholarly journals Absolute sensitivity calibration of an extreme ultraviolet spectrometer for tokamak measurements

2017 ◽  
Vol 12 (01) ◽  
pp. P01006-P01006 ◽  
Author(s):  
R. Guirlet ◽  
J.L. Schwob ◽  
O. Meyer ◽  
S. Vartanian
Keyword(s):  
Extreme Ultraviolet ◽  
Absolute Sensitivity ◽  
Ultraviolet Spectrometer

A HIGH EFFICIENCY IMAGING EXTREME ULTRAVIOLET SPECTROMETER

1991 ◽  
pp. 380-389
Author(s):  
JEFFREY S. MORGAN ◽  
J. GETHYN TIMOTHY ◽  
DAVID C. SLATER ◽  
MARTIN C.E. HUBER ◽  
GIUSEPPE TONDELLO ◽  
...  
Keyword(s):  
High Efficiency ◽  
Extreme Ultraviolet ◽  
Ultraviolet Spectrometer
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