First results from the neutral particle analyzer on the COMPASS tokamak

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F15%3A00474056" target="_blank" >RIV/61389021:_____/15:00474056 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
First results from the neutral particle analyzer on the COMPASS tokamak
Original language description
The Neutral Particle Analyzer (NPA) for the COMPASS tokamak was recently upgraded and absolutelyncalibrated in the Ioffe Institute, St. Petersburg. NPA allows simultaneous measurements of thenenergy spectra of fast hydrogen and deuterium atoms and determination of the ion temperature. Energynspectra of the neutral fluxes are measured by NPA in Ohmic as well as in the NBI heated plasmas. Thenmeasured ion temperature in L-mode plasmas varies in the range of 300-500 eV. After the L-H transition,nthe ion temperature increases by ΔTi ≈ 250 eV. A relatively high temporal resolution of the NPA datanacquisition system allows study of fast transient phenomena, such as the Edge Localized Mode and sawtoothnoscillation.nComparative measurement of Ti in the plasma core given by NPA and at the plasma edge usingnRetarding Field Analyzer is also reported.
Czech name
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Czech description
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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
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of Science: 1st EPS Conference on Plasma Diagnostics, ECPD 2015
ISBN
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ISSN
1824-8039
e-ISSN
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Number of pages
9
Pages from-to
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Publisher name
Proceedings of Science (PoS)
Place of publication
Frascati
Event location
Frascati
Event date
Apr 14, 2015
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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