Influence of boronization on operation with high-Z plasma facing components in Alcator C-Mod
We report the results of operation of Alcator C-Mod with all high-Z molybdenum plasma facing component (PFC) surfaces. Without boron-coated PFCs energy confinement was poor (HITER,89∼1) due to high core molybdenum (nMo/ne⩽0.1%) and radiation. After applying boron coatings, nMo/ne was reduced by a fa...
Gespeichert in:
| Veröffentlicht in: | Journal of nuclear materials 2007-06, Vol.363-365, p.1110-1118 |
|---|---|
| Hauptverfasser: | , , , , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 1118 |
|---|---|
| container_issue | |
| container_start_page | 1110 |
| container_title | Journal of nuclear materials |
| container_volume | 363-365 |
| creator | Lipschultz, B. Lin, Y. Marmar, E.S. Whyte, D.G. Wukitch, S. Hutchinson, I.H. Irby, J. LaBombard, B. Reinke, M.L. Terry, J.L. Wright, G. |
| description | We report the results of operation of Alcator C-Mod with all high-Z molybdenum plasma facing component (PFC) surfaces. Without boron-coated PFCs energy confinement was poor (HITER,89∼1) due to high core molybdenum (nMo/ne⩽0.1%) and radiation. After applying boron coatings, nMo/ne was reduced by a factor of 10–20 with HITER,89 approaching 2. Results of between-discharge boronization, localized at various major radii, point towards important molybdenum source regions being small, outside the divertor, and due to RF-sheath-rectification. Boronization also has a significant effect on the plasma startup phase lowering Zeff, radiation, and lowering the runaway electron damage. The requirement of low-Z coatings over at least a fraction of the Mo PFCs in C-Mod for best performance together with the larger than expected D retention in Mo, give impetus for further high-Z PFC investigations to better predict the performance of un-coated tungsten surfaces in ITER and beyond. |
| doi_str_mv | 10.1016/j.jnucmat.2007.01.227 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_29992930</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0022311507002310</els_id><sourcerecordid>20235992</sourcerecordid><originalsourceid>FETCH-LOGICAL-c479t-9d360d98ae00f315efe2d5bb5a4432b1561f75c1c4a38ed744877dd58b901a7a3</originalsourceid><addsrcrecordid>eNqNkUuLFDEQgIMoOK7-BCEXvXVbSTqTzkmWwcfCihe9iBCq89jJ0J20Sc-K_np7mIE9rlBQFHxVRdVHyGsGLQO2fXdoD-loJ1xaDqBaYC3n6gnZsF6Jpus5PCUbAM4bwZh8Tl7UegAAqUFuyM-bFMajT9bTHOiQS07xLy4xJ3qK2Zdz8Tsue7qPd_vmB51HrBPSgDamO2rzNOfk01JpTPR6tLjkQnfNl-xekmcBx-pfXfIV-f7xw7fd5-b266eb3fVtYzull0Y7sQWne_QAQTDpg-dODoPErhN8YHLLgpKW2Q5F753qul4p52Q_aGCoUFyRt-e5c8m_jr4uZorV-nHE5POxGq615lrA_4Bb3Xf8cRC4kOvQFZRn0JZca_HBzCVOWP4YBuZkxxzMxY452THAzGpn7XtzWYDV4hgKJhvrQ3O_niaBrdz7M-fX_91HX0y18aTLxeLtYlyOj2z6B9uAqAo</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>20235992</pqid></control><display><type>article</type><title>Influence of boronization on operation with high-Z plasma facing components in Alcator C-Mod</title><source>Access via ScienceDirect (Elsevier)</source><creator>Lipschultz, B. ; Lin, Y. ; Marmar, E.S. ; Whyte, D.G. ; Wukitch, S. ; Hutchinson, I.H. ; Irby, J. ; LaBombard, B. ; Reinke, M.L. ; Terry, J.L. ; Wright, G.</creator><creatorcontrib>Lipschultz, B. ; Lin, Y. ; Marmar, E.S. ; Whyte, D.G. ; Wukitch, S. ; Hutchinson, I.H. ; Irby, J. ; LaBombard, B. ; Reinke, M.L. ; Terry, J.L. ; Wright, G. ; The Alcator C-Mod Group</creatorcontrib><description>We report the results of operation of Alcator C-Mod with all high-Z molybdenum plasma facing component (PFC) surfaces. Without boron-coated PFCs energy confinement was poor (HITER,89∼1) due to high core molybdenum (nMo/ne⩽0.1%) and radiation. After applying boron coatings, nMo/ne was reduced by a factor of 10–20 with HITER,89 approaching 2. Results of between-discharge boronization, localized at various major radii, point towards important molybdenum source regions being small, outside the divertor, and due to RF-sheath-rectification. Boronization also has a significant effect on the plasma startup phase lowering Zeff, radiation, and lowering the runaway electron damage. The requirement of low-Z coatings over at least a fraction of the Mo PFCs in C-Mod for best performance together with the larger than expected D retention in Mo, give impetus for further high-Z PFC investigations to better predict the performance of un-coated tungsten surfaces in ITER and beyond.</description><identifier>ISSN: 0022-3115</identifier><identifier>EISSN: 1873-4820</identifier><identifier>DOI: 10.1016/j.jnucmat.2007.01.227</identifier><identifier>CODEN: JNUMAM</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Alcator C-Mod ; Applied sciences ; Boronization ; Controled nuclear fusion plants ; Energy ; Energy. Thermal use of fuels ; Erosion ; Exact sciences and technology ; High-Z material ; Installations for energy generation and conversion: thermal and electrical energy ; Molybdenum</subject><ispartof>Journal of nuclear materials, 2007-06, Vol.363-365, p.1110-1118</ispartof><rights>2007 Elsevier B.V.</rights><rights>2007 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c479t-9d360d98ae00f315efe2d5bb5a4432b1561f75c1c4a38ed744877dd58b901a7a3</citedby><cites>FETCH-LOGICAL-c479t-9d360d98ae00f315efe2d5bb5a4432b1561f75c1c4a38ed744877dd58b901a7a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jnucmat.2007.01.227$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>309,310,314,780,784,789,790,3550,23930,23931,25140,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=18901501$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Lipschultz, B.</creatorcontrib><creatorcontrib>Lin, Y.</creatorcontrib><creatorcontrib>Marmar, E.S.</creatorcontrib><creatorcontrib>Whyte, D.G.</creatorcontrib><creatorcontrib>Wukitch, S.</creatorcontrib><creatorcontrib>Hutchinson, I.H.</creatorcontrib><creatorcontrib>Irby, J.</creatorcontrib><creatorcontrib>LaBombard, B.</creatorcontrib><creatorcontrib>Reinke, M.L.</creatorcontrib><creatorcontrib>Terry, J.L.</creatorcontrib><creatorcontrib>Wright, G.</creatorcontrib><creatorcontrib>The Alcator C-Mod Group</creatorcontrib><title>Influence of boronization on operation with high-Z plasma facing components in Alcator C-Mod</title><title>Journal of nuclear materials</title><description>We report the results of operation of Alcator C-Mod with all high-Z molybdenum plasma facing component (PFC) surfaces. Without boron-coated PFCs energy confinement was poor (HITER,89∼1) due to high core molybdenum (nMo/ne⩽0.1%) and radiation. After applying boron coatings, nMo/ne was reduced by a factor of 10–20 with HITER,89 approaching 2. Results of between-discharge boronization, localized at various major radii, point towards important molybdenum source regions being small, outside the divertor, and due to RF-sheath-rectification. Boronization also has a significant effect on the plasma startup phase lowering Zeff, radiation, and lowering the runaway electron damage. The requirement of low-Z coatings over at least a fraction of the Mo PFCs in C-Mod for best performance together with the larger than expected D retention in Mo, give impetus for further high-Z PFC investigations to better predict the performance of un-coated tungsten surfaces in ITER and beyond.</description><subject>Alcator C-Mod</subject><subject>Applied sciences</subject><subject>Boronization</subject><subject>Controled nuclear fusion plants</subject><subject>Energy</subject><subject>Energy. Thermal use of fuels</subject><subject>Erosion</subject><subject>Exact sciences and technology</subject><subject>High-Z material</subject><subject>Installations for energy generation and conversion: thermal and electrical energy</subject><subject>Molybdenum</subject><issn>0022-3115</issn><issn>1873-4820</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNqNkUuLFDEQgIMoOK7-BCEXvXVbSTqTzkmWwcfCihe9iBCq89jJ0J20Sc-K_np7mIE9rlBQFHxVRdVHyGsGLQO2fXdoD-loJ1xaDqBaYC3n6gnZsF6Jpus5PCUbAM4bwZh8Tl7UegAAqUFuyM-bFMajT9bTHOiQS07xLy4xJ3qK2Zdz8Tsue7qPd_vmB51HrBPSgDamO2rzNOfk01JpTPR6tLjkQnfNl-xekmcBx-pfXfIV-f7xw7fd5-b266eb3fVtYzull0Y7sQWne_QAQTDpg-dODoPErhN8YHLLgpKW2Q5F753qul4p52Q_aGCoUFyRt-e5c8m_jr4uZorV-nHE5POxGq615lrA_4Bb3Xf8cRC4kOvQFZRn0JZca_HBzCVOWP4YBuZkxxzMxY452THAzGpn7XtzWYDV4hgKJhvrQ3O_niaBrdz7M-fX_91HX0y18aTLxeLtYlyOj2z6B9uAqAo</recordid><startdate>20070615</startdate><enddate>20070615</enddate><creator>Lipschultz, B.</creator><creator>Lin, Y.</creator><creator>Marmar, E.S.</creator><creator>Whyte, D.G.</creator><creator>Wukitch, S.</creator><creator>Hutchinson, I.H.</creator><creator>Irby, J.</creator><creator>LaBombard, B.</creator><creator>Reinke, M.L.</creator><creator>Terry, J.L.</creator><creator>Wright, G.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>7TB</scope><scope>7U5</scope><scope>FR3</scope><scope>L7M</scope></search><sort><creationdate>20070615</creationdate><title>Influence of boronization on operation with high-Z plasma facing components in Alcator C-Mod</title><author>Lipschultz, B. ; Lin, Y. ; Marmar, E.S. ; Whyte, D.G. ; Wukitch, S. ; Hutchinson, I.H. ; Irby, J. ; LaBombard, B. ; Reinke, M.L. ; Terry, J.L. ; Wright, G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c479t-9d360d98ae00f315efe2d5bb5a4432b1561f75c1c4a38ed744877dd58b901a7a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Alcator C-Mod</topic><topic>Applied sciences</topic><topic>Boronization</topic><topic>Controled nuclear fusion plants</topic><topic>Energy</topic><topic>Energy. Thermal use of fuels</topic><topic>Erosion</topic><topic>Exact sciences and technology</topic><topic>High-Z material</topic><topic>Installations for energy generation and conversion: thermal and electrical energy</topic><topic>Molybdenum</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lipschultz, B.</creatorcontrib><creatorcontrib>Lin, Y.</creatorcontrib><creatorcontrib>Marmar, E.S.</creatorcontrib><creatorcontrib>Whyte, D.G.</creatorcontrib><creatorcontrib>Wukitch, S.</creatorcontrib><creatorcontrib>Hutchinson, I.H.</creatorcontrib><creatorcontrib>Irby, J.</creatorcontrib><creatorcontrib>LaBombard, B.</creatorcontrib><creatorcontrib>Reinke, M.L.</creatorcontrib><creatorcontrib>Terry, J.L.</creatorcontrib><creatorcontrib>Wright, G.</creatorcontrib><creatorcontrib>The Alcator C-Mod Group</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Engineering Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of nuclear materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lipschultz, B.</au><au>Lin, Y.</au><au>Marmar, E.S.</au><au>Whyte, D.G.</au><au>Wukitch, S.</au><au>Hutchinson, I.H.</au><au>Irby, J.</au><au>LaBombard, B.</au><au>Reinke, M.L.</au><au>Terry, J.L.</au><au>Wright, G.</au><aucorp>The Alcator C-Mod Group</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of boronization on operation with high-Z plasma facing components in Alcator C-Mod</atitle><jtitle>Journal of nuclear materials</jtitle><date>2007-06-15</date><risdate>2007</risdate><volume>363-365</volume><spage>1110</spage><epage>1118</epage><pages>1110-1118</pages><issn>0022-3115</issn><eissn>1873-4820</eissn><coden>JNUMAM</coden><abstract>We report the results of operation of Alcator C-Mod with all high-Z molybdenum plasma facing component (PFC) surfaces. Without boron-coated PFCs energy confinement was poor (HITER,89∼1) due to high core molybdenum (nMo/ne⩽0.1%) and radiation. After applying boron coatings, nMo/ne was reduced by a factor of 10–20 with HITER,89 approaching 2. Results of between-discharge boronization, localized at various major radii, point towards important molybdenum source regions being small, outside the divertor, and due to RF-sheath-rectification. Boronization also has a significant effect on the plasma startup phase lowering Zeff, radiation, and lowering the runaway electron damage. The requirement of low-Z coatings over at least a fraction of the Mo PFCs in C-Mod for best performance together with the larger than expected D retention in Mo, give impetus for further high-Z PFC investigations to better predict the performance of un-coated tungsten surfaces in ITER and beyond.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jnucmat.2007.01.227</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0022-3115 |
| ispartof | Journal of nuclear materials, 2007-06, Vol.363-365, p.1110-1118 |
| issn | 0022-3115 1873-4820 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_29992930 |
| source | Access via ScienceDirect (Elsevier) |
| subjects | Alcator C-Mod Applied sciences Boronization Controled nuclear fusion plants Energy Energy. Thermal use of fuels Erosion Exact sciences and technology High-Z material Installations for energy generation and conversion: thermal and electrical energy Molybdenum |
| title | Influence of boronization on operation with high-Z plasma facing components in Alcator C-Mod |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-24T22%3A46%3A32IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Influence%20of%20boronization%20on%20operation%20with%20high-Z%20plasma%20facing%20components%20in%20Alcator%20C-Mod&rft.jtitle=Journal%20of%20nuclear%20materials&rft.au=Lipschultz,%20B.&rft.aucorp=The%20Alcator%20C-Mod%20Group&rft.date=2007-06-15&rft.volume=363-365&rft.spage=1110&rft.epage=1118&rft.pages=1110-1118&rft.issn=0022-3115&rft.eissn=1873-4820&rft.coden=JNUMAM&rft_id=info:doi/10.1016/j.jnucmat.2007.01.227&rft_dat=%3Cproquest_cross%3E20235992%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=20235992&rft_id=info:pmid/&rft_els_id=S0022311507002310&rfr_iscdi=true |