Outline of optical design and viewing geometry for divertor Thomson scattering on MAST upgrade

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F13%3A00421348" target="_blank" >RIV/61389021:_____/13:00421348 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/1748-0221/8/11/C11010" target="_blank" >http://dx.doi.org/10.1088/1748-0221/8/11/C11010</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1748-0221/8/11/C11010" target="_blank" >10.1088/1748-0221/8/11/C11010</a>

Result language
angličtina
Original language name
Outline of optical design and viewing geometry for divertor Thomson scattering on MAST upgrade
Original language description
The super-X divertor on MAST Upgrade will be diagnosed by a Thomson scattering diagnostic. A preliminary design of the collection optics and calculations of the diagnostic's performance are discussed in this paper. As part of the design the location andsize of the collection cell were optimized to minimize vignetting, especially in the region of interest close to the divertor strike point. The design process was complicated by the limited access available in the closed divertor geometry. In the study of the diagnostic's performance, the radial resolution, projection of the laser image onto the fiber bundle, and impact of depth of field with a multiple laser system were investigated. In this design there is a trade-off between the resolution of the system and the lifetime of the beam dump. For this reason the beam has its focal point at the start of the viewing region and diverges in width to approximately five millmetrs near the divertor tile. The effect of this large variation
Czech name
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Czech description
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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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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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