scholarly journals New density profile reconstruction methods in X-mode reflectometry

2017 ◽  
Vol 88 (4) ◽  
pp. 043503 ◽  
Author(s):  
R. B. Morales ◽  
S. Hacquin ◽  
S. Heuraux ◽  
R. Sabot
Keyword(s):  
Density Profile ◽  
Reconstruction Methods ◽  
Profile Reconstruction

Pseudotomographic fitting algorithm for density profile reconstruction from a sparse 1‐D interferometer array

1988 ◽  
Vol 59 (7) ◽  
pp. 1067-1071 ◽  
Author(s):  
J. A. Casey ◽  
E. Sevillano ◽  
J. H. Irby ◽  
B. G. Lane
Keyword(s):  
Density Profile ◽  
Fitting Algorithm ◽  
Profile Reconstruction

scholarly journals Towards Real-Time Density Profile Reconstruction With Cuda

2016 ◽  
Author(s):  
Pedro Carvalho ◽  
Diogo R. Ferreira ◽  
Horácio Fernandes ◽  
Luís Meneses
Keyword(s):  
Real Time ◽  
Density Profile ◽  
Profile Reconstruction ◽  
Time Density

Profile Reconstruction Methods for Pulse Reflectometry

2001 ◽  
Vol 40 (Part 2, No. 7A) ◽  
pp. L705-L707 ◽  
Author(s):  
Leonid G. Bruskin ◽  
Atsushi Mase ◽  
Akihide Yamamoto ◽  
Masamichi Ohashi ◽  
Takashi Deguchi
Keyword(s):  
Reconstruction Methods ◽  
Profile Reconstruction

scholarly journals New signal processing technique for density profile reconstruction using reflectometry

2011 ◽  
Vol 82 (8) ◽  
pp. 083502 ◽  
Author(s):  
F. Clairet ◽  
B. Ricaud ◽  
F. Briolle ◽  
S. Heuraux ◽  
C. Bottereau
Keyword(s):  
Signal Processing ◽  
Density Profile ◽  
Processing Technique ◽  
Signal Processing Technique ◽  
Profile Reconstruction

scholarly journals Electron density profile reconstruction on the TCABR sweeping reflectometer

2015 ◽  
Vol 591 ◽  
pp. 012006
Author(s):  
A M M Fonseca ◽  
S Hacquin ◽  
R M O Galvão ◽  
J I Elizondo ◽  
P G Puglia ◽  
...  
Keyword(s):  
Electron Density ◽  
Density Profile ◽  
Electron Density Profile ◽  
Profile Reconstruction

Prescription for density profile reconstruction using a heavy ion beam probe

2003 ◽  
Vol 74 (7) ◽  
pp. 3335-3340 ◽  
Author(s):  
A. Fujisawa ◽  
M. Kitazawa ◽  
A. Shimizu ◽  
S. Ohshima ◽  
H. Iguchi
Keyword(s):  
Density Profile ◽  
Ion Beam ◽  
Heavy Ion ◽  
Heavy Ion Beam ◽  
Heavy Ion Beam Probe ◽  
Profile Reconstruction

The impact of inverted density gradients on density profiles measured by reflectometry: an experimental and numerical investigation at ASDEX Upgrade

2022 ◽  
Vol 17 (01) ◽  
pp. C01008
Author(s):  
D. Hachmeister ◽  
C. Silva ◽  
J. Santos ◽  
G.D. Conway ◽  
L. Gil ◽  
...  
Keyword(s):  
Experimental Evidence ◽  
Density Profile ◽  
High Field ◽  
Continuous Wave ◽  
Dense Plasma ◽  
Density Profiles ◽  
Full Wave ◽  
Simulation And Experiment ◽  
Profile Reconstruction ◽  
The Impact

Abstract The high-field side high-density (HFSHD) region at ASDEX Upgrade (AUG) is a well-documented phenomenon leading to a dense plasma in the inner divertor region that expands upwards to the midplane, resulting in poloidally asymmetric scrape-off layer density profiles. This work investigates, via simulation and experiment, whether the HFSHD at the midplane leads to hollow density profiles at the high-field side. Using the frequency-modulated continuous-wave O-mode reflectometer at AUG, experimental evidence has been found of reflection patterns compatible with a hollow density profile that are reproduced by 1D full-wave simulations. Furthermore, this work assesses the uncertainties in the density profile reconstruction as a consequence of the inverted gradient, showing that the presence of an HFSHD may lead to an overestimation of the density in the confined region.

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