Current research into applications of tomography for fusion diagnostics
Retrieving spatial distribution of plasma emissivity from line integrated measurements on
tokamaks presents a challenging task due to ill-posedness of the tomography problem and …
tokamaks presents a challenging task due to ill-posedness of the tomography problem and …
Radial dependence diagnosis of inductively coupled Ar plasma based upon optical emission spectroscopic measurement with spectral reflectance compensation
Y Yamashita, T Kiyota, K Asakawa, S Hosoya… - Review of Scientific …, 2023 - pubs.aip.org
This study proposed a simple method to evaluate the spectral reflectance of the inner wall of
a vacuum chamber. A method for calculating spectral emission coefficients by taking the …
a vacuum chamber. A method for calculating spectral emission coefficients by taking the …
Experimental distinction of the molecularly induced Balmer emission contribution and its application for inferring molecular divertor density with 2D filtered camera …
J Karhunen, A Holm, B Lomanowski… - Plasma Physics and …, 2022 - iopscience.iop.org
A previously presented model for generating 2D estimates of the divertor plasma conditions
at JET from deuterium Balmer line intensity ratios, obtained from tomographic …
at JET from deuterium Balmer line intensity ratios, obtained from tomographic …
Physically principled reflection models applied to filtered camera imaging inversions in metal walled fusion machines
Ray-tracing techniques are applied to filtered divertor imaging, a diagnostic that has long
suffered from artifacts due to the polluting effect of reflected light in metal walled fusion …
suffered from artifacts due to the polluting effect of reflected light in metal walled fusion …
Assessment of filtered cameras for quantitative 2D analysis of divertor conditions during detachment in JET L-mode plasmas
J Karhunen, B Lomanowski, V Solokha… - Plasma Physics and …, 2021 - iopscience.iop.org
Estimates for 2D distributions of electron temperature, $ T_\mathrm {e} $, electron density, $
n_\mathrm {e} $, and atomic deuterium density, $ n_\mathrm {0} $, in the JET divertor …
n_\mathrm {e} $, and atomic deuterium density, $ n_\mathrm {0} $, in the JET divertor …
Effect of reflections on 2D tomographic reconstructions of filtered cameras and on interpreting spectroscopic measurements in the JET ITER-like wall divertor
J Karhunen, M Carr, JR Harrison… - Review of Scientific …, 2019 - pubs.aip.org
Considering reflections from metallic wall surfaces in generation of tomographic
reconstructions of the tangentially viewing, visible-range spectroscopic divertor cameras in …
reconstructions of the tangentially viewing, visible-range spectroscopic divertor cameras in …
[HTML][HTML] Measurement of the 2D emission profiles of hydrogen and impurity ions in the TCV divertor
A Perek, BL Linehan, M Wensing, K Verhaegh… - Nuclear Materials and …, 2021 - Elsevier
Plasma emission of hydrogen and impurities is measured with use of filtered camera
imaging in TCV divertor. The measurement technique is discussed in detail including …
imaging in TCV divertor. The measurement technique is discussed in detail including …
Tomographic reconstruction of tokamak edge turbulence from single visible camera data and automatic turbulence structure tracking
J Cavalier, N Lemoine, F Brochard, V Weinzettl… - Nuclear …, 2019 - iopscience.iop.org
Following the lead of Nguyen van Yen (2012 Nucl. Fusion 52 013005), this article tackles
the problem of tomographic inversion with one camera assuming a constant emissivity of …
the problem of tomographic inversion with one camera assuming a constant emissivity of …
[PDF][PDF] A Doppler coherence imaging diagnostic for the mega-amp spherical tokamak
S SILBURN - 2014 - etheses.dur.ac.uk
Developing a plasma exhaust solution suitable for future high power tokamaks is one of the
major challenges facing the development of magnetic confinement fusion as a terrestrial …
major challenges facing the development of magnetic confinement fusion as a terrestrial …
Assessing global beryllium erosion via tomographic reconstruction of 3D beryllium emission profiles in ITER
VS Neverov, RA Pitts, RI Khusnutdinov… - Plasma Physics and …, 2024 - iopscience.iop.org
A new method for estimating the global erosion of beryllium (Be) in ITER is proposed. The
method uses ray tracing-aided tomography to reconstruct the three-dimensional (3D) profile …
method uses ray tracing-aided tomography to reconstruct the three-dimensional (3D) profile …