High-resolution spectroscopy diagnostics for measuring impurity ion temperature and velocity on the COMPASS tokamak
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10319764" target="_blank" >RIV/00216208:11320/15:10319764 - isvavai.cz</a>
Alternative codes found
RIV/61389021:_____/15:00450801 RIV/68407700:21230/15:00232452
Result on the web
<a href="http://dx.doi.org/10.1016/j.fusengdes.2015.04.006" target="_blank" >http://dx.doi.org/10.1016/j.fusengdes.2015.04.006</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.fusengdes.2015.04.006" target="_blank" >10.1016/j.fusengdes.2015.04.006</a>
Alternative languages
Result language
angličtina
Original language name
High-resolution spectroscopy diagnostics for measuring impurity ion temperature and velocity on the COMPASS tokamak
Original language description
High-resolution spectroscopy is a powerful tool for the measurement of plasma rotation as well as ion temperature using the Doppler shift of the emitted spectral lines and their Doppler broadening, respectively. Both passive and active diagnostic variants for the COMPASS tokamak are introduced. The passive diagnostic focused on the C III lines at about 465 nm is utilized for the observation of the poloidal plasma rotation. The current set-up of the measuring system is described, including the intended high-throughput optics upgrade. Different options to increase the fiber collection area are mentioned, including a flower-like fiber bundle, and the use of micro-lenses or tapered fibers. Recent measurements of poloidal plasma rotation of the order of 0-6 km/s are shown. The design of the new active diagnostic using a deuterium heating beam and based on charge exchange recombination spectroscopy (C VI line at 529 nm) is introduced. The tool will provide both space (0.5-5 cm) and time (10 ms) resolved toroidal plasma rotation and ion temperature profiles. The results of the Simulation of Spectra code used to examine the feasibility of charge exchange measurements on COMPASS are shown and connected with a selection of the spectrometer coupled with the CCD camera.
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
JA - Electronics and optoelectronics
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
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Fusion Engineering and Design
ISSN
0920-3796
e-ISSN
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Volume of the periodical
96-97
Issue of the periodical within the volume
Oct
Country of publishing house
CH - SWITZERLAND
Number of pages
6
Pages from-to
1006-1011
UT code for WoS article
000364255900209
EID of the result in the Scopus database
2-s2.0-84942823992