Modern numerical methods for plasma tomography optimisation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F12%3A00199540" target="_blank" >RIV/68407700:21340/12:00199540 - isvavai.cz</a>
Alternative codes found
RIV/61389021:_____/12:00383250
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S0168900212005712" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0168900212005712</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.nima.2012.05.063" target="_blank" >10.1016/j.nima.2012.05.063</a>
Alternative languages
Result language
angličtina
Original language name
Modern numerical methods for plasma tomography optimisation
Original language description
Tomography is a technique which is widely applied to fusion plasmas as it can provide improved understanding of plasma emissivity distributions. It is challenging because of the sparse nature of data available from the measured plasma projections. An optimised version of robust and fast tomographic algorithm based on the Tikhonov regularisation constrained to Minimum Fisher Information is presented in this contribution. A new regularisation matrix enforcing preferential emissivity smoothness along magnetic flux surfaces is introduced. The paper also details application of advanced numerical methods which lead to a substantial decrease in computation time. Subsequent implementation of fast presolvers of the inverse problem further contributes to the algorithm's efficiency and also an improved stability of the tomography reconstruction. Finally, reliability and performance of the tomography algorithm is exemplified by the reconstruction of soft X-ray data evolution following tungsten abl
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BL - Plasma physics and discharge through gases
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nuclear Instruments and Methods in Physics Research, Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
ISSN
0168-9002
e-ISSN
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Volume of the periodical
686
Issue of the periodical within the volume
686
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
6
Pages from-to
156-161
UT code for WoS article
000307091100023
EID of the result in the Scopus database
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