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Current Research into Applications of Tomography for Fusion Diagnostics
CAS, Inst Plasma Phys, Prague 18200, Czech Republic..ORCID iD: 0000-0003-4718-4321
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Fusion Plasma Physics.
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Fusion Plasma Physics.
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Fusion Plasma Physics.
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Number of Authors: 12302019 (English)In: Journal of fusion energy, ISSN 0164-0313, E-ISSN 1572-9591, Vol. 38, no 3-4, p. 458-466Article in journal (Refereed) Published
Abstract [en]

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 limited number of the lines of sight. Modern methods of plasma tomography therefore implement a-priori information as well as constraints, in particular some form of penalisation of complexity. In this contribution, the current tomography methods under development (Tikhonov regularisation, Bayesian methods and neural networks) are briefly explained taking into account their potential for integration into the fusion reactor diagnostics. In particular, current development of the Minimum Fisher Regularisation method is exemplified with respect to real-time reconstruction capability, combination with spectral unfolding and other prospective tasks.

Place, publisher, year, edition, pages
Springer Berlin/Heidelberg, 2019. Vol. 38, no 3-4, p. 458-466
Keywords [en]
Tokamaks, Plasma tomography, Plasma diagnostics
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-269154DOI: 10.1007/s10894-018-0178-xISI: 000476509600015OAI: oai:DiVA.org:kth-269154DiVA, id: diva2:1411970
Note

Qc 20200304

Available from: 2020-03-04 Created: 2020-03-04 Last updated: 2020-03-12Bibliographically approved

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Mlynar, JanBergsåker, HenrikBykov, IgorFrassinetti, LorenzoGarcia Carrasco, AlvaroHellsten, TorbjörnJohnson, ThomasRachlew, ElisabethRatynskaia, SvetlanaRubel, MarekStefániková, EsteraStröm, PetterTholerus, EmmiTolias, PanagiotisOlivares, Pablo VallejosWeckmann, Armin
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