Effects of E r shear on edge turbulence of the China Tokamak-6B
On the China Tokamak (CT-6B) [Nucl. Fusion 36, 1669 (1996)], application of negative limiter bias resulted in enhanced E r shear in the naturally occurring E r shear layer near the fixed limiter radius with negligible change of plasma density, electron temperature, the parallel plasma flow, and the...
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| Veröffentlicht in: | Physics of plasmas 1998-05, Vol.5 (5), p.1328-1335 |
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| container_title | Physics of plasmas |
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| creator | Wang, Guiding Yang, Xuanzong Feng, Chunhua Jiang, Diming Zhou, Baosuo Qi, Xiazhi Wang, Long |
| description | On the China Tokamak (CT-6B) [Nucl. Fusion 36, 1669 (1996)], application of negative limiter bias resulted in enhanced
E
r
shear in the naturally occurring
E
r
shear layer near the fixed limiter radius with negligible change of plasma density, electron temperature, the parallel plasma flow, and the impurity ion radiation power. In the layer, decreased turbulent fluctuation, reduced poloidal correlation and increased nonlinear coupling of the turbulence were observed to be very possibly correlated with enhanced
E
r
shear. The results suggest that there exists interaction of
E
r
shear with turbulence, and an
E
r
shear-induced shift in the phase angle between density and poloidal electric field fluctuations and nonlinear three-wave coupling may play an important role in suppressing edge turbulence. |
| doi_str_mv | 10.1063/1.872792 |
| format | Article |
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E
r
shear in the naturally occurring
E
r
shear layer near the fixed limiter radius with negligible change of plasma density, electron temperature, the parallel plasma flow, and the impurity ion radiation power. In the layer, decreased turbulent fluctuation, reduced poloidal correlation and increased nonlinear coupling of the turbulence were observed to be very possibly correlated with enhanced
E
r
shear. The results suggest that there exists interaction of
E
r
shear with turbulence, and an
E
r
shear-induced shift in the phase angle between density and poloidal electric field fluctuations and nonlinear three-wave coupling may play an important role in suppressing edge turbulence.</description><identifier>ISSN: 1070-664X</identifier><identifier>EISSN: 1089-7674</identifier><identifier>DOI: 10.1063/1.872792</identifier><identifier>CODEN: PHPAEN</identifier><language>eng</language><ispartof>Physics of plasmas, 1998-05, Vol.5 (5), p.1328-1335</ispartof><rights>American Institute of Physics</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://pubs.aip.org/pop/article-lookup/doi/10.1063/1.872792$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>314,776,780,1553,27901,27902,76132</link.rule.ids></links><search><creatorcontrib>Wang, Guiding</creatorcontrib><creatorcontrib>Yang, Xuanzong</creatorcontrib><creatorcontrib>Feng, Chunhua</creatorcontrib><creatorcontrib>Jiang, Diming</creatorcontrib><creatorcontrib>Zhou, Baosuo</creatorcontrib><creatorcontrib>Qi, Xiazhi</creatorcontrib><creatorcontrib>Wang, Long</creatorcontrib><title>Effects of E r shear on edge turbulence of the China Tokamak-6B</title><title>Physics of plasmas</title><description>On the China Tokamak (CT-6B) [Nucl. Fusion 36, 1669 (1996)], application of negative limiter bias resulted in enhanced
E
r
shear in the naturally occurring
E
r
shear layer near the fixed limiter radius with negligible change of plasma density, electron temperature, the parallel plasma flow, and the impurity ion radiation power. In the layer, decreased turbulent fluctuation, reduced poloidal correlation and increased nonlinear coupling of the turbulence were observed to be very possibly correlated with enhanced
E
r
shear. The results suggest that there exists interaction of
E
r
shear with turbulence, and an
E
r
shear-induced shift in the phase angle between density and poloidal electric field fluctuations and nonlinear three-wave coupling may play an important role in suppressing edge turbulence.</description><issn>1070-664X</issn><issn>1089-7674</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1998</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNp9kE1Lw0AYhBdRsFbBn7BXD6nvZr9PoiFVoeClgrew2X1jYtuk7KaC_15DxaOnGZiHgRlCrhksGCh-yxZG59rmJ2TGwNhMKy1OJ68hU0q8nZOLlD4AQChpZuSubBr0Y6JDQ0saaWrRRTr0FMM70vEQ68MWe49TPrZIi7brHV0PG7dzm0w9XJKzxm0TXv3qnLwuy3XxlK1eHp-L-1WWmORjpqWtuWGouLR5w0HomkshODDIURrO6toqgygkYrDCc2-9UiGHEALwH3hObo69yXejG7uhr_ax27n4VX0OsWLVcXW1D81_LINqeumP59_-gFb1</recordid><startdate>199805</startdate><enddate>199805</enddate><creator>Wang, Guiding</creator><creator>Yang, Xuanzong</creator><creator>Feng, Chunhua</creator><creator>Jiang, Diming</creator><creator>Zhou, Baosuo</creator><creator>Qi, Xiazhi</creator><creator>Wang, Long</creator><scope/></search><sort><creationdate>199805</creationdate><title>Effects of E r shear on edge turbulence of the China Tokamak-6B</title><author>Wang, Guiding ; Yang, Xuanzong ; Feng, Chunhua ; Jiang, Diming ; Zhou, Baosuo ; Qi, Xiazhi ; Wang, Long</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-s153t-759b381e63592f3047b354430102e5831bb968ee45eed94c3c9c66d20ddd037b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1998</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Guiding</creatorcontrib><creatorcontrib>Yang, Xuanzong</creatorcontrib><creatorcontrib>Feng, Chunhua</creatorcontrib><creatorcontrib>Jiang, Diming</creatorcontrib><creatorcontrib>Zhou, Baosuo</creatorcontrib><creatorcontrib>Qi, Xiazhi</creatorcontrib><creatorcontrib>Wang, Long</creatorcontrib><jtitle>Physics of plasmas</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Guiding</au><au>Yang, Xuanzong</au><au>Feng, Chunhua</au><au>Jiang, Diming</au><au>Zhou, Baosuo</au><au>Qi, Xiazhi</au><au>Wang, Long</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of E r shear on edge turbulence of the China Tokamak-6B</atitle><jtitle>Physics of plasmas</jtitle><date>1998-05</date><risdate>1998</risdate><volume>5</volume><issue>5</issue><spage>1328</spage><epage>1335</epage><pages>1328-1335</pages><issn>1070-664X</issn><eissn>1089-7674</eissn><coden>PHPAEN</coden><abstract>On the China Tokamak (CT-6B) [Nucl. Fusion 36, 1669 (1996)], application of negative limiter bias resulted in enhanced
E
r
shear in the naturally occurring
E
r
shear layer near the fixed limiter radius with negligible change of plasma density, electron temperature, the parallel plasma flow, and the impurity ion radiation power. In the layer, decreased turbulent fluctuation, reduced poloidal correlation and increased nonlinear coupling of the turbulence were observed to be very possibly correlated with enhanced
E
r
shear. The results suggest that there exists interaction of
E
r
shear with turbulence, and an
E
r
shear-induced shift in the phase angle between density and poloidal electric field fluctuations and nonlinear three-wave coupling may play an important role in suppressing edge turbulence.</abstract><doi>10.1063/1.872792</doi><tpages>8</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1070-664X |
| ispartof | Physics of plasmas, 1998-05, Vol.5 (5), p.1328-1335 |
| issn | 1070-664X 1089-7674 |
| language | eng |
| recordid | cdi_scitation_primary_10_1063_1_872792 |
| source | AIP Digital Archive |
| title | Effects of E r shear on edge turbulence of the China Tokamak-6B |
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