Observation of plasma poloidal rotation in “Uragan-3M” torsatron from edge Hα fluctuation correlation studies
Studies of plasma edge Ha emission fluctuations firstly proposed for CHS heliotron/torsatron have been performed for RF produced/heated plasma in “Uragan-3M” torsatron. Approach is based on a realistic assumption that Ha emission fluctuations from plasma edge (ne≥10¹⁷m⁻³, Te≥10eV) defined mostly by...
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| Published in: | Вопросы атомной науки и техники |
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| Date: | 2002 |
| Main Authors: | , , , , , |
| Format: | Article |
| Language: | English |
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Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2002
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/80305 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Observation of plasma poloidal rotation in “Uragan-3M” torsatron from edge Hα fluctuation correlation studies / V.G. Konovalov, K. Matsuoka, O.S. Pavlichenko, A.N. Shapoval, A.I. Skibenko, C. Suzuki // Вопросы атомной науки и техники. — 2002. — № 4. — С. 199-201. — Бібліогр.: 4 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862553323176984576 |
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| author | Konovalov, V.G. Matsuoka, K. Pavlichenko, O.S. Shapoval, A.N. Skibenko, A.I. Suzuki, C. |
| author_facet | Konovalov, V.G. Matsuoka, K. Pavlichenko, O.S. Shapoval, A.N. Skibenko, A.I. Suzuki, C. |
| citation_txt | Observation of plasma poloidal rotation in “Uragan-3M” torsatron from edge Hα fluctuation correlation studies / V.G. Konovalov, K. Matsuoka, O.S. Pavlichenko, A.N. Shapoval, A.I. Skibenko, C. Suzuki // Вопросы атомной науки и техники. — 2002. — № 4. — С. 199-201. — Бібліогр.: 4 назв. — англ. |
| collection | DSpace DC |
| container_title | Вопросы атомной науки и техники |
| description | Studies of plasma edge Ha emission fluctuations firstly proposed for CHS heliotron/torsatron have been performed for RF produced/heated plasma in “Uragan-3M” torsatron. Approach is based on a realistic assumption that Ha emission fluctuations from plasma edge (ne≥10¹⁷m⁻³, Te≥10eV) defined mostly by electron density fluctuations. Having two Ha observation channels getting emission from plasma edge in 2 different poloidal locations of plasma one can study correlation of electron density fluctuations between these locations. Analysis of data included calculation of spectra of signals, their coherency and cross correlation between 2 signals for time windows 1 ms. Bands of rather high (>0.5) coherency were observed over the whole range (f<100 KHz) of frequencies. Calculation of cross correlation of digitally filtered (∆f=4 KHz) signals showed that time delay of low frequency part of signals coincides with time delay of no filtered signals and is decreasing with frequency increase. Conclusion of these observations is: time delay of low frequency part of signals reflects plasma poloidal rotation, time delay in the rest part of spectra reflects a dispersion properties of poloidally propagating density fluctuations.
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| first_indexed | 2025-11-25T21:12:26Z |
| format | Article |
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| id | nasplib_isofts_kiev_ua-123456789-80305 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1562-6016 |
| language | English |
| last_indexed | 2025-11-25T21:12:26Z |
| publishDate | 2002 |
| publisher | Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
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| spelling | Konovalov, V.G. Matsuoka, K. Pavlichenko, O.S. Shapoval, A.N. Skibenko, A.I. Suzuki, C. 2015-04-14T17:28:14Z 2015-04-14T17:28:14Z 2002 Observation of plasma poloidal rotation in “Uragan-3M” torsatron from edge Hα fluctuation correlation studies / V.G. Konovalov, K. Matsuoka, O.S. Pavlichenko, A.N. Shapoval, A.I. Skibenko, C. Suzuki // Вопросы атомной науки и техники. — 2002. — № 4. — С. 199-201. — Бібліогр.: 4 назв. — англ. 1562-6016 PACS: 52.70.-m; 52.55.Hc https://nasplib.isofts.kiev.ua/handle/123456789/80305 Studies of plasma edge Ha emission fluctuations firstly proposed for CHS heliotron/torsatron have been performed for RF produced/heated plasma in “Uragan-3M” torsatron. Approach is based on a realistic assumption that Ha emission fluctuations from plasma edge (ne≥10¹⁷m⁻³, Te≥10eV) defined mostly by electron density fluctuations. Having two Ha observation channels getting emission from plasma edge in 2 different poloidal locations of plasma one can study correlation of electron density fluctuations between these locations. Analysis of data included calculation of spectra of signals, their coherency and cross correlation between 2 signals for time windows 1 ms. Bands of rather high (>0.5) coherency were observed over the whole range (f<100 KHz) of frequencies. Calculation of cross correlation of digitally filtered (∆f=4 KHz) signals showed that time delay of low frequency part of signals coincides with time delay of no filtered signals and is decreasing with frequency increase. Conclusion of these observations is: time delay of low frequency part of signals reflects plasma poloidal rotation, time delay in the rest part of spectra reflects a dispersion properties of poloidally propagating density fluctuations. en Національний науковий центр «Харківський фізико-технічний інститут» НАН України Вопросы атомной науки и техники Plasma diagnostics Observation of plasma poloidal rotation in “Uragan-3M” torsatron from edge Hα fluctuation correlation studies Article published earlier |
| spellingShingle | Observation of plasma poloidal rotation in “Uragan-3M” torsatron from edge Hα fluctuation correlation studies Konovalov, V.G. Matsuoka, K. Pavlichenko, O.S. Shapoval, A.N. Skibenko, A.I. Suzuki, C. Plasma diagnostics |
| title | Observation of plasma poloidal rotation in “Uragan-3M” torsatron from edge Hα fluctuation correlation studies |
| title_full | Observation of plasma poloidal rotation in “Uragan-3M” torsatron from edge Hα fluctuation correlation studies |
| title_fullStr | Observation of plasma poloidal rotation in “Uragan-3M” torsatron from edge Hα fluctuation correlation studies |
| title_full_unstemmed | Observation of plasma poloidal rotation in “Uragan-3M” torsatron from edge Hα fluctuation correlation studies |
| title_short | Observation of plasma poloidal rotation in “Uragan-3M” torsatron from edge Hα fluctuation correlation studies |
| title_sort | observation of plasma poloidal rotation in “uragan-3m” torsatron from edge hα fluctuation correlation studies |
| topic | Plasma diagnostics |
| topic_facet | Plasma diagnostics |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/80305 |
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