High resolution Thomson scattering on the COMPASS tokamak - extending edge plasma view and increasing repetition rate

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F18%3A00489514" target="_blank" >RIV/61389021:_____/18:00489514 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21230/18:00321236 RIV/68407700:21340/18:00321236
Result on the web
<a href="http://dx.doi.org/10.1088/1748-0221/13/01/C01024" target="_blank" >http://dx.doi.org/10.1088/1748-0221/13/01/C01024</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1748-0221/13/01/C01024" target="_blank" >10.1088/1748-0221/13/01/C01024</a>

Result language
angličtina
Original language name
High resolution Thomson scattering on the COMPASS tokamak - extending edge plasma view and increasing repetition rate
Original language description
The Thomson scattering (TS) diagnostic system on the COMPASS tokamak consists of separate collection optics for core and edge plasmas. Till now, the adverse orientation of the viewport available for the edge TS limited the investigated plasma scenarios to those, where H-mode plasma pedestal was possible to be observed. The vacuum vessel port has been recently modified and directed more to the plasma edge. To bridge the time for designing and manufacturing a new lens, the so far used edge TS collection lens was tilted and the fibre bundles rearranged to comply with the new geometry. However, the full potential of the new port is utilized only by the newly designed and manufactured lens. Comparison of performance of the collection lenses before and after the viewport modification is presented. Apart from the edge collection system upgrade, the laser system was extended by two lasers with parameters similar to the original two, thus increasing the repetition rate of the TS system to 120 Hz or allowing to obtain four profiles with tight timing in order to measure fast transient events in the plasma.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
21100 - Other engineering and technologies

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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