Tungsten control in type-I ELMy H-mode plasmas on EAST
The first experimental investigation of the tungsten behavior in ELMy H-mode plasmas with co-/counter neutral beam injection (NBI) and unfavorable/favorable B t was performed on EAST. Tungsten was found to accumulate easily in ELMy H-mode plasma with co-NBI heating and unfavorable B t . Thus, in thi...
Gespeichert in:
| Veröffentlicht in: | Nuclear science and techniques 2021-09, Vol.32 (9), p.61-72, Article 95 |
|---|---|
| Hauptverfasser: | , , , , , , , , , , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 72 |
|---|---|
| container_issue | 9 |
| container_start_page | 61 |
| container_title | Nuclear science and techniques |
| container_volume | 32 |
| creator | Xu, Zong Wu, Zhen-Wei Zhang, Ling Cheng, Yun-Xing Gao, Wei Lin, Xiao-Dong Gao, Xiang Chen, Ying-Jie Huang, Yue-Heng Huang, Juan Zang, Qing Jie, Yin-Xian Duan, Yan-Min Li, Ying-Ying Liu, Hai-Qing Xu, Guo-Sheng team, EAST |
| description | The first experimental investigation of the tungsten behavior in ELMy H-mode plasmas with co-/counter neutral beam injection (NBI) and unfavorable/favorable
B
t
was performed on EAST. Tungsten was found to accumulate easily in ELMy H-mode plasma with co-NBI heating and unfavorable
B
t
. Thus, in this case the tungsten concentration can exceed 10
−4
, resulting in degradation of the plasma confinement and periodic H–L transitions. To reduce the tungsten concentration in steady-state type-I ELMy H-mode operation, counter-NBI is applied to modify the density and temperature and brake the plasma toroidal rotation. The applied counter-NBI decreases the PHZ +
E
r
inward pinch velocity and reverses the direction of neoclassical inward convection, thus decreasing the tungsten concentration from ~ 7 × 10
−5
to ~ 2 × 10
−5
in type-I ELMy H-mode plasma with favorable
B
t
. A comparison of the effects of different
B
t
directions on the tungsten behavior also shows that favorable
B
t
is beneficial for reducing the tungsten concentration in the core plasma. These results imply that counter-NBI with favorable
B
t
can effectively prevent tungsten accumulation and expand the operating window for exploring steady-state type-I ELMy H-mode operation of EAST. |
| doi_str_mv | 10.1007/s41365-021-00929-4 |
| format | Article |
| fullrecord | <record><control><sourceid>wanfang_jour_cross</sourceid><recordid>TN_cdi_wanfang_journals_hjs_e202109007</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><wanfj_id>hjs_e202109007</wanfj_id><sourcerecordid>hjs_e202109007</sourcerecordid><originalsourceid>FETCH-LOGICAL-c322t-450c849eb38b1c0b7043f90c9393016a7689246ad8e327433e2ba53b012002e23</originalsourceid><addsrcrecordid>eNp9kE1PAjEQQBujiYj-AU89eatOZ7ofPRKCQoLxIJ6b7tJFCHRJu8Tsv7eyJt48zeW9mcxj7F7CowQonqKSlGcCUAoAjVqoCzZClCBIquKSjRIlRQkKr9lNjDsApfJMj1i-OvlN7Jzndeu70O751vOuPzqx4LPla8_n4tCuHT_ubTzYyFvPZ5P31S27auw-urvfOWYfz7PVdC6Wby-L6WQpakLshMqgLpV2FZWVrKEqQFGjodakCWRui7zUqHK7Lh1hoYgcVjajCiQCoEMas4dh75f1jfUbs2tPwaeL5nMXjcP0MOgUIIE4gHVoYwyuMcewPdjQGwnmJ5EZEplkmHMio5JEgxQT7Dcu_K3_x_oGc8xlUg</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Tungsten control in type-I ELMy H-mode plasmas on EAST</title><source>Alma/SFX Local Collection</source><source>SpringerLink Journals - AutoHoldings</source><creator>Xu, Zong ; Wu, Zhen-Wei ; Zhang, Ling ; Cheng, Yun-Xing ; Gao, Wei ; Lin, Xiao-Dong ; Gao, Xiang ; Chen, Ying-Jie ; Huang, Yue-Heng ; Huang, Juan ; Zang, Qing ; Jie, Yin-Xian ; Duan, Yan-Min ; Li, Ying-Ying ; Liu, Hai-Qing ; Xu, Guo-Sheng ; team, EAST</creator><creatorcontrib>Xu, Zong ; Wu, Zhen-Wei ; Zhang, Ling ; Cheng, Yun-Xing ; Gao, Wei ; Lin, Xiao-Dong ; Gao, Xiang ; Chen, Ying-Jie ; Huang, Yue-Heng ; Huang, Juan ; Zang, Qing ; Jie, Yin-Xian ; Duan, Yan-Min ; Li, Ying-Ying ; Liu, Hai-Qing ; Xu, Guo-Sheng ; team, EAST</creatorcontrib><description>The first experimental investigation of the tungsten behavior in ELMy H-mode plasmas with co-/counter neutral beam injection (NBI) and unfavorable/favorable
B
t
was performed on EAST. Tungsten was found to accumulate easily in ELMy H-mode plasma with co-NBI heating and unfavorable
B
t
. Thus, in this case the tungsten concentration can exceed 10
−4
, resulting in degradation of the plasma confinement and periodic H–L transitions. To reduce the tungsten concentration in steady-state type-I ELMy H-mode operation, counter-NBI is applied to modify the density and temperature and brake the plasma toroidal rotation. The applied counter-NBI decreases the PHZ +
E
r
inward pinch velocity and reverses the direction of neoclassical inward convection, thus decreasing the tungsten concentration from ~ 7 × 10
−5
to ~ 2 × 10
−5
in type-I ELMy H-mode plasma with favorable
B
t
. A comparison of the effects of different
B
t
directions on the tungsten behavior also shows that favorable
B
t
is beneficial for reducing the tungsten concentration in the core plasma. These results imply that counter-NBI with favorable
B
t
can effectively prevent tungsten accumulation and expand the operating window for exploring steady-state type-I ELMy H-mode operation of EAST.</description><identifier>ISSN: 1001-8042</identifier><identifier>EISSN: 2210-3147</identifier><identifier>DOI: 10.1007/s41365-021-00929-4</identifier><language>eng</language><publisher>Singapore: Springer Singapore</publisher><subject>Beam Physics ; Nuclear Energy ; Particle Acceleration and Detection ; Particle and Nuclear Physics ; Physics ; Physics and Astronomy</subject><ispartof>Nuclear science and techniques, 2021-09, Vol.32 (9), p.61-72, Article 95</ispartof><rights>China Science Publishing & Media Ltd. (Science Press), Shanghai Institute of Applied Physics, the Chinese Academy of Sciences, Chinese Nuclear Society 2021</rights><rights>Copyright © Wanfang Data Co. Ltd. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c322t-450c849eb38b1c0b7043f90c9393016a7689246ad8e327433e2ba53b012002e23</citedby><cites>FETCH-LOGICAL-c322t-450c849eb38b1c0b7043f90c9393016a7689246ad8e327433e2ba53b012002e23</cites><orcidid>0000-0001-5852-0250 ; 0000-0002-3141-9969</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://www.wanfangdata.com.cn/images/PeriodicalImages/hjs-e/hjs-e.jpg</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s41365-021-00929-4$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s41365-021-00929-4$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Xu, Zong</creatorcontrib><creatorcontrib>Wu, Zhen-Wei</creatorcontrib><creatorcontrib>Zhang, Ling</creatorcontrib><creatorcontrib>Cheng, Yun-Xing</creatorcontrib><creatorcontrib>Gao, Wei</creatorcontrib><creatorcontrib>Lin, Xiao-Dong</creatorcontrib><creatorcontrib>Gao, Xiang</creatorcontrib><creatorcontrib>Chen, Ying-Jie</creatorcontrib><creatorcontrib>Huang, Yue-Heng</creatorcontrib><creatorcontrib>Huang, Juan</creatorcontrib><creatorcontrib>Zang, Qing</creatorcontrib><creatorcontrib>Jie, Yin-Xian</creatorcontrib><creatorcontrib>Duan, Yan-Min</creatorcontrib><creatorcontrib>Li, Ying-Ying</creatorcontrib><creatorcontrib>Liu, Hai-Qing</creatorcontrib><creatorcontrib>Xu, Guo-Sheng</creatorcontrib><creatorcontrib>team, EAST</creatorcontrib><title>Tungsten control in type-I ELMy H-mode plasmas on EAST</title><title>Nuclear science and techniques</title><addtitle>NUCL SCI TECH</addtitle><description>The first experimental investigation of the tungsten behavior in ELMy H-mode plasmas with co-/counter neutral beam injection (NBI) and unfavorable/favorable
B
t
was performed on EAST. Tungsten was found to accumulate easily in ELMy H-mode plasma with co-NBI heating and unfavorable
B
t
. Thus, in this case the tungsten concentration can exceed 10
−4
, resulting in degradation of the plasma confinement and periodic H–L transitions. To reduce the tungsten concentration in steady-state type-I ELMy H-mode operation, counter-NBI is applied to modify the density and temperature and brake the plasma toroidal rotation. The applied counter-NBI decreases the PHZ +
E
r
inward pinch velocity and reverses the direction of neoclassical inward convection, thus decreasing the tungsten concentration from ~ 7 × 10
−5
to ~ 2 × 10
−5
in type-I ELMy H-mode plasma with favorable
B
t
. A comparison of the effects of different
B
t
directions on the tungsten behavior also shows that favorable
B
t
is beneficial for reducing the tungsten concentration in the core plasma. These results imply that counter-NBI with favorable
B
t
can effectively prevent tungsten accumulation and expand the operating window for exploring steady-state type-I ELMy H-mode operation of EAST.</description><subject>Beam Physics</subject><subject>Nuclear Energy</subject><subject>Particle Acceleration and Detection</subject><subject>Particle and Nuclear Physics</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><issn>1001-8042</issn><issn>2210-3147</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp9kE1PAjEQQBujiYj-AU89eatOZ7ofPRKCQoLxIJ6b7tJFCHRJu8Tsv7eyJt48zeW9mcxj7F7CowQonqKSlGcCUAoAjVqoCzZClCBIquKSjRIlRQkKr9lNjDsApfJMj1i-OvlN7Jzndeu70O751vOuPzqx4LPla8_n4tCuHT_ubTzYyFvPZ5P31S27auw-urvfOWYfz7PVdC6Wby-L6WQpakLshMqgLpV2FZWVrKEqQFGjodakCWRui7zUqHK7Lh1hoYgcVjajCiQCoEMas4dh75f1jfUbs2tPwaeL5nMXjcP0MOgUIIE4gHVoYwyuMcewPdjQGwnmJ5EZEplkmHMio5JEgxQT7Dcu_K3_x_oGc8xlUg</recordid><startdate>20210901</startdate><enddate>20210901</enddate><creator>Xu, Zong</creator><creator>Wu, Zhen-Wei</creator><creator>Zhang, Ling</creator><creator>Cheng, Yun-Xing</creator><creator>Gao, Wei</creator><creator>Lin, Xiao-Dong</creator><creator>Gao, Xiang</creator><creator>Chen, Ying-Jie</creator><creator>Huang, Yue-Heng</creator><creator>Huang, Juan</creator><creator>Zang, Qing</creator><creator>Jie, Yin-Xian</creator><creator>Duan, Yan-Min</creator><creator>Li, Ying-Ying</creator><creator>Liu, Hai-Qing</creator><creator>Xu, Guo-Sheng</creator><creator>team, EAST</creator><general>Springer Singapore</general><general>University of Science&Technology of China, Hefei 230031, China%Advanced Energy Research Center, Shenzhen University, Shenzhen 518060, China</general><general>Institute of Plasma Physics, Chinese Academy of Science, Hefei 230031, China</general><general>Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China%Institute of Plasma Physics, Chinese Academy of Science, Hefei 230031, China%Institute of Plasma Physics, Chinese Academy of Science, Hefei 230031, China</general><general>Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China</general><general>Advanced Energy Research Center, Shenzhen University, Shenzhen 518060, China</general><scope>AAYXX</scope><scope>CITATION</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope><orcidid>https://orcid.org/0000-0001-5852-0250</orcidid><orcidid>https://orcid.org/0000-0002-3141-9969</orcidid></search><sort><creationdate>20210901</creationdate><title>Tungsten control in type-I ELMy H-mode plasmas on EAST</title><author>Xu, Zong ; Wu, Zhen-Wei ; Zhang, Ling ; Cheng, Yun-Xing ; Gao, Wei ; Lin, Xiao-Dong ; Gao, Xiang ; Chen, Ying-Jie ; Huang, Yue-Heng ; Huang, Juan ; Zang, Qing ; Jie, Yin-Xian ; Duan, Yan-Min ; Li, Ying-Ying ; Liu, Hai-Qing ; Xu, Guo-Sheng ; team, EAST</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c322t-450c849eb38b1c0b7043f90c9393016a7689246ad8e327433e2ba53b012002e23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Beam Physics</topic><topic>Nuclear Energy</topic><topic>Particle Acceleration and Detection</topic><topic>Particle and Nuclear Physics</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xu, Zong</creatorcontrib><creatorcontrib>Wu, Zhen-Wei</creatorcontrib><creatorcontrib>Zhang, Ling</creatorcontrib><creatorcontrib>Cheng, Yun-Xing</creatorcontrib><creatorcontrib>Gao, Wei</creatorcontrib><creatorcontrib>Lin, Xiao-Dong</creatorcontrib><creatorcontrib>Gao, Xiang</creatorcontrib><creatorcontrib>Chen, Ying-Jie</creatorcontrib><creatorcontrib>Huang, Yue-Heng</creatorcontrib><creatorcontrib>Huang, Juan</creatorcontrib><creatorcontrib>Zang, Qing</creatorcontrib><creatorcontrib>Jie, Yin-Xian</creatorcontrib><creatorcontrib>Duan, Yan-Min</creatorcontrib><creatorcontrib>Li, Ying-Ying</creatorcontrib><creatorcontrib>Liu, Hai-Qing</creatorcontrib><creatorcontrib>Xu, Guo-Sheng</creatorcontrib><creatorcontrib>team, EAST</creatorcontrib><collection>CrossRef</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Nuclear science and techniques</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Xu, Zong</au><au>Wu, Zhen-Wei</au><au>Zhang, Ling</au><au>Cheng, Yun-Xing</au><au>Gao, Wei</au><au>Lin, Xiao-Dong</au><au>Gao, Xiang</au><au>Chen, Ying-Jie</au><au>Huang, Yue-Heng</au><au>Huang, Juan</au><au>Zang, Qing</au><au>Jie, Yin-Xian</au><au>Duan, Yan-Min</au><au>Li, Ying-Ying</au><au>Liu, Hai-Qing</au><au>Xu, Guo-Sheng</au><au>team, EAST</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Tungsten control in type-I ELMy H-mode plasmas on EAST</atitle><jtitle>Nuclear science and techniques</jtitle><stitle>NUCL SCI TECH</stitle><date>2021-09-01</date><risdate>2021</risdate><volume>32</volume><issue>9</issue><spage>61</spage><epage>72</epage><pages>61-72</pages><artnum>95</artnum><issn>1001-8042</issn><eissn>2210-3147</eissn><abstract>The first experimental investigation of the tungsten behavior in ELMy H-mode plasmas with co-/counter neutral beam injection (NBI) and unfavorable/favorable
B
t
was performed on EAST. Tungsten was found to accumulate easily in ELMy H-mode plasma with co-NBI heating and unfavorable
B
t
. Thus, in this case the tungsten concentration can exceed 10
−4
, resulting in degradation of the plasma confinement and periodic H–L transitions. To reduce the tungsten concentration in steady-state type-I ELMy H-mode operation, counter-NBI is applied to modify the density and temperature and brake the plasma toroidal rotation. The applied counter-NBI decreases the PHZ +
E
r
inward pinch velocity and reverses the direction of neoclassical inward convection, thus decreasing the tungsten concentration from ~ 7 × 10
−5
to ~ 2 × 10
−5
in type-I ELMy H-mode plasma with favorable
B
t
. A comparison of the effects of different
B
t
directions on the tungsten behavior also shows that favorable
B
t
is beneficial for reducing the tungsten concentration in the core plasma. These results imply that counter-NBI with favorable
B
t
can effectively prevent tungsten accumulation and expand the operating window for exploring steady-state type-I ELMy H-mode operation of EAST.</abstract><cop>Singapore</cop><pub>Springer Singapore</pub><doi>10.1007/s41365-021-00929-4</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0001-5852-0250</orcidid><orcidid>https://orcid.org/0000-0002-3141-9969</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1001-8042 |
| ispartof | Nuclear science and techniques, 2021-09, Vol.32 (9), p.61-72, Article 95 |
| issn | 1001-8042 2210-3147 |
| language | eng |
| recordid | cdi_wanfang_journals_hjs_e202109007 |
| source | Alma/SFX Local Collection; SpringerLink Journals - AutoHoldings |
| subjects | Beam Physics Nuclear Energy Particle Acceleration and Detection Particle and Nuclear Physics Physics Physics and Astronomy |
| title | Tungsten control in type-I ELMy H-mode plasmas on EAST |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-04T15%3A34%3A30IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-wanfang_jour_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Tungsten%20control%20in%20type-I%20ELMy%20H-mode%20plasmas%20on%20EAST&rft.jtitle=Nuclear%20science%20and%20techniques&rft.au=Xu,%20Zong&rft.date=2021-09-01&rft.volume=32&rft.issue=9&rft.spage=61&rft.epage=72&rft.pages=61-72&rft.artnum=95&rft.issn=1001-8042&rft.eissn=2210-3147&rft_id=info:doi/10.1007/s41365-021-00929-4&rft_dat=%3Cwanfang_jour_cross%3Ehjs_e202109007%3C/wanfang_jour_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rft_wanfj_id=hjs_e202109007&rfr_iscdi=true |