Optimization of soft X-ray tomography on the COMPASS tokamak
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F16%3A00464277" target="_blank" >RIV/61389021:_____/16:00464277 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/16:10334344
Result on the web
<a href="http://dx.doi.org/10.1515/nuka-2016-0066" target="_blank" >http://dx.doi.org/10.1515/nuka-2016-0066</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1515/nuka-2016-0066" target="_blank" >10.1515/nuka-2016-0066</a>
Alternative languages
Result language
angličtina
Original language name
Optimization of soft X-ray tomography on the COMPASS tokamak
Original language description
The COMPASS tokamak is equipped with the soft X-ray (SXR) diagnostic system based on silicon photodiode arrays shielded by a thin beryllium foil. The diagnostic is composed of two pinhole cameras having 35 channels each and one vertical pinhole camera with 20 channels, which was installed recently to improve tomographic inversions. Lines of sight of the SXR detectors cover almost complete poloidal cross section of the COMPASS vessel with a spatial resolution of 1–2 cm and temporal resolution of about 3 micro s. Local emissivity is reconstructed via Tikhonov regularization constrained by minimum Fisher information that providesnreliable and robust solution despite limited number of projections and ill-conditionality of this task. Improved border conditions and numerical differentiation matrices suppressing artifacts in reconstructed radiation were implemented in the code. Furthermore, a fast algorithm eliminating iterative processes was developed, and it is foreseen to be tested in real-time plasma control.
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
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nukleonika
ISSN
0029-5922
e-ISSN
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Volume of the periodical
61
Issue of the periodical within the volume
4
Country of publishing house
PL - POLAND
Number of pages
6
Pages from-to
403-408
UT code for WoS article
000387150200002
EID of the result in the Scopus database
2-s2.0-84995505899