About: Inversion techniques in the Soft X-Ray tomography of fusion plasmas: towards real-time applications

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The tomography of fusion plasmas provides local information on plasma emissivity from line-integrated measurements (projections). However, the corresponding inversion task presents an ill-posed and often underdetermined problem. Compared to industrial and medical tomography systems, data in fusion research are spatially sparse due to the limited number of lines of sight, and they may vary rapidly in time. Therefore, dedicated inversion techniques have been developed that allow for lower spatial resolution and implementation of a priori information and constraints. In this contribution, the main inversion techniques used today are reviewed, with working results and challenges outlined. Special attention is given to techniques that allow for rapid tomography inversions, because of their future potential for real-time applications, and a new combined technique is proposed. The tomography of fusion plasmas provides local information on plasma emissivity from line-integrated measurements (projections). However, the corresponding inversion task presents an ill-posed and often underdetermined problem. Compared to industrial and medical tomography systems, data in fusion research are spatially sparse due to the limited number of lines of sight, and they may vary rapidly in time. Therefore, dedicated inversion techniques have been developed that allow for lower spatial resolution and implementation of a priori information and constraints. In this contribution, the main inversion techniques used today are reviewed, with working results and challenges outlined. Special attention is given to techniques that allow for rapid tomography inversions, because of their future potential for real-time applications, and a new combined technique is proposed. (en)
Title	Inversion techniques in the Soft X-Ray tomography of fusion plasmas: towards real-time applications Inversion techniques in the Soft X-Ray tomography of fusion plasmas: towards real-time applications (en)
skos:prefLabel	Inversion techniques in the Soft X-Ray tomography of fusion plasmas: towards real-time applications Inversion techniques in the Soft X-Ray tomography of fusion plasmas: towards real-time applications (en)
skos:notation	RIV/61389021:_____/10:00350274!RIV11-GA0-61389021
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA202/09/1467), P(GAP205/10/2055), P(LA08048), Z(AV0Z20430508)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Weinzettl, Vladimír Mlynář, Jan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky plazmatu AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	264785
http://linked.open...ai/riv/idVysledku	RIV/61389021:_____/10:00350274
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	plasma tomography; real-time control; soft-X-ray diagnostics (en)
http://linked.open.../riv/klicoveSlovo	soft-X-ray diagnostics real-time control plasma tomography
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[E430D3215A25]
http://linked.open...i/riv/nazevZdroje	Fusion Science and Technology
http://linked.open...in/vavai/riv/obor	BL
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Numerical analyses and physical interpretation of the ITER-relevant experimental data from the Joint European Torus JET Multi-range tomographic system for transport studies in tokamak plasmas Thermonuclear Fusion Research on the joint European tokamak JET in Culham, United Kingdom
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	58
http://linked.open...iv/tvurceVysledku	Weinzettl, Vladimír Bonheure, G. Mlynář, Jan Murari, A.
http://linked.open...ain/vavai/riv/wos	000284174400004
http://linked.open...n/vavai/riv/zamer	Physical and chemical processes in plasmas and theis applications
issn	1536-1055
number of pages	9 (xsd:int)

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