Determination of discharge parameters via OES at the Linac4 H⁻ ion source
Optical emission spectroscopy (OES) measurements of the atomic Balmer series and the molecular Fulcher transition have been carried out at the Linac4 ion source in order to determine plasma parameters. As the spectroscopic system was only relatively calibrated, the data evaluation only yielded rough...
Gespeichert in:
| Veröffentlicht in: | Review of scientific instruments 2016-02, Vol.87 (2), p.02B104-02B104 |
|---|---|
| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 02B104 |
|---|---|
| container_issue | 2 |
| container_start_page | 02B104 |
| container_title | Review of scientific instruments |
| container_volume | 87 |
| creator | Briefi, S Fink, D Mattei, S Lettry, J Fantz, U |
| description | Optical emission spectroscopy (OES) measurements of the atomic Balmer series and the molecular Fulcher transition have been carried out at the Linac4 ion source in order to determine plasma parameters. As the spectroscopic system was only relatively calibrated, the data evaluation only yielded rough estimates of the plasma parameters (T(e) ≈ 1.2 eV, n(e) ≈ 1 × 10(19) m(-3), and n(H/)n(H2) ≈ 0.5 at standard operational parameters). The analysis of the Fulcher transition revealed a non-thermal "hockey-stick" rotational population of the hydrogen molecules. At varying RF power, the measurements at the on-axis line of sight (LOS) showed a peak in the rotational temperatures between 25 and 40 kW of RF power, whereas a steady decrease with power was observed at a tilted LOS, indicating the presence of strong plasma parameter gradients. |
| doi_str_mv | 10.1063/1.4932009 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_osti_</sourceid><recordid>TN_cdi_osti_scitechconnect_22482926</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2123849953</sourcerecordid><originalsourceid>FETCH-LOGICAL-c481t-c996d8fef157cc583777865071f305362e3f1d978bfdda64bd475ea98f01b0ea3</originalsourceid><addsrcrecordid>eNpF0ctOGzEUBmCrKiohZdEXQJa6gcWAj-3xZVlxrYiUBWVtOZ7jZlBmJrUdpC77XLwNT8JECdQbL_z5l_5zCPkG7ByYEhdwLq3gjNlPZALM2EorLj6TCWNCVkpLc0iOcn5i46kBvpBDrqwAa9SE3F9hwdS1vS_t0NMh0qbNYenTb6Rrn3y3fc70ufV0fv1AfaFliXQ2-iDp3eu_F7r9lodNCviVHES_yni8v6fk8eb61-VdNZvf_rz8MauCNFCqYK1qTMQItQ6hNkJrbVTNNETBaqE4igiN1WYRm8YruWikrtFbExksGHoxJd93uUMurcuhLRiWYeh7DMVxLg23XI3qdKfWafizwVxcNzbD1cr3OGyyA60ZBytr-T_wgz6Nhfqxg-PAhZHW1mJUZzsV0pBzwujWqe18-uuAue0eHLj9HkZ7sk_cLDpsPuT74MUbX7x_7A</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2123849953</pqid></control><display><type>article</type><title>Determination of discharge parameters via OES at the Linac4 H⁻ ion source</title><source>AIP Journals Complete</source><source>Alma/SFX Local Collection</source><creator>Briefi, S ; Fink, D ; Mattei, S ; Lettry, J ; Fantz, U</creator><creatorcontrib>Briefi, S ; Fink, D ; Mattei, S ; Lettry, J ; Fantz, U</creatorcontrib><description>Optical emission spectroscopy (OES) measurements of the atomic Balmer series and the molecular Fulcher transition have been carried out at the Linac4 ion source in order to determine plasma parameters. As the spectroscopic system was only relatively calibrated, the data evaluation only yielded rough estimates of the plasma parameters (T(e) ≈ 1.2 eV, n(e) ≈ 1 × 10(19) m(-3), and n(H/)n(H2) ≈ 0.5 at standard operational parameters). The analysis of the Fulcher transition revealed a non-thermal "hockey-stick" rotational population of the hydrogen molecules. At varying RF power, the measurements at the on-axis line of sight (LOS) showed a peak in the rotational temperatures between 25 and 40 kW of RF power, whereas a steady decrease with power was observed at a tilted LOS, indicating the presence of strong plasma parameter gradients.</description><identifier>ISSN: 0034-6748</identifier><identifier>EISSN: 1089-7623</identifier><identifier>DOI: 10.1063/1.4932009</identifier><identifier>PMID: 26931986</identifier><language>eng</language><publisher>United States: American Institute of Physics</publisher><subject>Balmer series ; EMISSION SPECTROSCOPY ; Hockey ; HYDROGEN ; INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY ; ION SOURCES ; Line of sight ; LINEAR ACCELERATORS ; Optical emission spectroscopy ; Order parameters ; Parameter estimation ; PEAKS ; PLASMA ; Scientific apparatus & instruments</subject><ispartof>Review of scientific instruments, 2016-02, Vol.87 (2), p.02B104-02B104</ispartof><rights>2015 AIP Publishing LLC.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c481t-c996d8fef157cc583777865071f305362e3f1d978bfdda64bd475ea98f01b0ea3</citedby><cites>FETCH-LOGICAL-c481t-c996d8fef157cc583777865071f305362e3f1d978bfdda64bd475ea98f01b0ea3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26931986$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/22482926$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Briefi, S</creatorcontrib><creatorcontrib>Fink, D</creatorcontrib><creatorcontrib>Mattei, S</creatorcontrib><creatorcontrib>Lettry, J</creatorcontrib><creatorcontrib>Fantz, U</creatorcontrib><title>Determination of discharge parameters via OES at the Linac4 H⁻ ion source</title><title>Review of scientific instruments</title><addtitle>Rev Sci Instrum</addtitle><description>Optical emission spectroscopy (OES) measurements of the atomic Balmer series and the molecular Fulcher transition have been carried out at the Linac4 ion source in order to determine plasma parameters. As the spectroscopic system was only relatively calibrated, the data evaluation only yielded rough estimates of the plasma parameters (T(e) ≈ 1.2 eV, n(e) ≈ 1 × 10(19) m(-3), and n(H/)n(H2) ≈ 0.5 at standard operational parameters). The analysis of the Fulcher transition revealed a non-thermal "hockey-stick" rotational population of the hydrogen molecules. At varying RF power, the measurements at the on-axis line of sight (LOS) showed a peak in the rotational temperatures between 25 and 40 kW of RF power, whereas a steady decrease with power was observed at a tilted LOS, indicating the presence of strong plasma parameter gradients.</description><subject>Balmer series</subject><subject>EMISSION SPECTROSCOPY</subject><subject>Hockey</subject><subject>HYDROGEN</subject><subject>INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY</subject><subject>ION SOURCES</subject><subject>Line of sight</subject><subject>LINEAR ACCELERATORS</subject><subject>Optical emission spectroscopy</subject><subject>Order parameters</subject><subject>Parameter estimation</subject><subject>PEAKS</subject><subject>PLASMA</subject><subject>Scientific apparatus & instruments</subject><issn>0034-6748</issn><issn>1089-7623</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNpF0ctOGzEUBmCrKiohZdEXQJa6gcWAj-3xZVlxrYiUBWVtOZ7jZlBmJrUdpC77XLwNT8JECdQbL_z5l_5zCPkG7ByYEhdwLq3gjNlPZALM2EorLj6TCWNCVkpLc0iOcn5i46kBvpBDrqwAa9SE3F9hwdS1vS_t0NMh0qbNYenTb6Rrn3y3fc70ufV0fv1AfaFliXQ2-iDp3eu_F7r9lodNCviVHES_yni8v6fk8eb61-VdNZvf_rz8MauCNFCqYK1qTMQItQ6hNkJrbVTNNETBaqE4igiN1WYRm8YruWikrtFbExksGHoxJd93uUMurcuhLRiWYeh7DMVxLg23XI3qdKfWafizwVxcNzbD1cr3OGyyA60ZBytr-T_wgz6Nhfqxg-PAhZHW1mJUZzsV0pBzwujWqe18-uuAue0eHLj9HkZ7sk_cLDpsPuT74MUbX7x_7A</recordid><startdate>20160201</startdate><enddate>20160201</enddate><creator>Briefi, S</creator><creator>Fink, D</creator><creator>Mattei, S</creator><creator>Lettry, J</creator><creator>Fantz, U</creator><general>American Institute of Physics</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>7X8</scope><scope>OTOTI</scope></search><sort><creationdate>20160201</creationdate><title>Determination of discharge parameters via OES at the Linac4 H⁻ ion source</title><author>Briefi, S ; Fink, D ; Mattei, S ; Lettry, J ; Fantz, U</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c481t-c996d8fef157cc583777865071f305362e3f1d978bfdda64bd475ea98f01b0ea3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Balmer series</topic><topic>EMISSION SPECTROSCOPY</topic><topic>Hockey</topic><topic>HYDROGEN</topic><topic>INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY</topic><topic>ION SOURCES</topic><topic>Line of sight</topic><topic>LINEAR ACCELERATORS</topic><topic>Optical emission spectroscopy</topic><topic>Order parameters</topic><topic>Parameter estimation</topic><topic>PEAKS</topic><topic>PLASMA</topic><topic>Scientific apparatus & instruments</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Briefi, S</creatorcontrib><creatorcontrib>Fink, D</creatorcontrib><creatorcontrib>Mattei, S</creatorcontrib><creatorcontrib>Lettry, J</creatorcontrib><creatorcontrib>Fantz, U</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><collection>OSTI.GOV</collection><jtitle>Review of scientific instruments</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Briefi, S</au><au>Fink, D</au><au>Mattei, S</au><au>Lettry, J</au><au>Fantz, U</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Determination of discharge parameters via OES at the Linac4 H⁻ ion source</atitle><jtitle>Review of scientific instruments</jtitle><addtitle>Rev Sci Instrum</addtitle><date>2016-02-01</date><risdate>2016</risdate><volume>87</volume><issue>2</issue><spage>02B104</spage><epage>02B104</epage><pages>02B104-02B104</pages><issn>0034-6748</issn><eissn>1089-7623</eissn><abstract>Optical emission spectroscopy (OES) measurements of the atomic Balmer series and the molecular Fulcher transition have been carried out at the Linac4 ion source in order to determine plasma parameters. As the spectroscopic system was only relatively calibrated, the data evaluation only yielded rough estimates of the plasma parameters (T(e) ≈ 1.2 eV, n(e) ≈ 1 × 10(19) m(-3), and n(H/)n(H2) ≈ 0.5 at standard operational parameters). The analysis of the Fulcher transition revealed a non-thermal "hockey-stick" rotational population of the hydrogen molecules. At varying RF power, the measurements at the on-axis line of sight (LOS) showed a peak in the rotational temperatures between 25 and 40 kW of RF power, whereas a steady decrease with power was observed at a tilted LOS, indicating the presence of strong plasma parameter gradients.</abstract><cop>United States</cop><pub>American Institute of Physics</pub><pmid>26931986</pmid><doi>10.1063/1.4932009</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0034-6748 |
| ispartof | Review of scientific instruments, 2016-02, Vol.87 (2), p.02B104-02B104 |
| issn | 0034-6748 1089-7623 |
| language | eng |
| recordid | cdi_osti_scitechconnect_22482926 |
| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Balmer series EMISSION SPECTROSCOPY Hockey HYDROGEN INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY ION SOURCES Line of sight LINEAR ACCELERATORS Optical emission spectroscopy Order parameters Parameter estimation PEAKS PLASMA Scientific apparatus & instruments |
| title | Determination of discharge parameters via OES at the Linac4 H⁻ ion source |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-01T02%3A11%3A01IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_osti_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Determination%20of%20discharge%20parameters%20via%20OES%20at%20the%20Linac4%20H%E2%81%BB%20ion%20source&rft.jtitle=Review%20of%20scientific%20instruments&rft.au=Briefi,%20S&rft.date=2016-02-01&rft.volume=87&rft.issue=2&rft.spage=02B104&rft.epage=02B104&rft.pages=02B104-02B104&rft.issn=0034-6748&rft.eissn=1089-7623&rft_id=info:doi/10.1063/1.4932009&rft_dat=%3Cproquest_osti_%3E2123849953%3C/proquest_osti_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2123849953&rft_id=info:pmid/26931986&rfr_iscdi=true |