Plasma diagnostics in spherical tokamaks with silicon charged-particle detectors
Detection of charged fusion products, such as protons and tritons resulting from D(d, p) t reactions, can be used to determine the position and time dependent fusion reaction rate profile in spherical tokamak plasmas with neutral beam heating. We have developed a prototype instrument consisting of 6...
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| Veröffentlicht in: | Review of scientific instruments 2016-11, Vol.87 (11), p.11D805-11D805 |
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| creator | Netepenko, A. Boeglin, W. U. Darrow, D. S. Ellis, R. Sibilia, M. J. |
| description | Detection of charged fusion products, such as protons and tritons resulting from D(d, p) t reactions, can be used to determine the position and time dependent fusion reaction rate profile in spherical tokamak plasmas with neutral beam heating. We have developed a prototype instrument consisting of 6 ion-implanted-silicon surface barrier detectors combined with collimators in such a way that each detector can accept 3 MeV protons and 1 MeV tritons and thus provides a curved view across the plasma cross section. The combination of the results from all six detectors will provide information on the spatial distribution of the fusion reaction rate. The expected time resolution of about 1 ms makes it possible to study changes in the reaction rate due to slow variations in the neutral beam density profile, as well as rapid changes resulting from MHD instabilities. Details of the new instrument, its data acquisition system, simulation results, and electrical noise testing results are discussed in this paper. First experimental data are expected to be taken during the current experimental campaign at NSTX-U. |
| doi_str_mv | 10.1063/1.4955485 |
| format | Article |
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U. ; Darrow, D. S. ; Ellis, R. ; Sibilia, M. J.</creator><creatorcontrib>Netepenko, A. ; Boeglin, W. U. ; Darrow, D. S. ; Ellis, R. ; Sibilia, M. J.</creatorcontrib><description>Detection of charged fusion products, such as protons and tritons resulting from D(d, p) t reactions, can be used to determine the position and time dependent fusion reaction rate profile in spherical tokamak plasmas with neutral beam heating. We have developed a prototype instrument consisting of 6 ion-implanted-silicon surface barrier detectors combined with collimators in such a way that each detector can accept 3 MeV protons and 1 MeV tritons and thus provides a curved view across the plasma cross section. The combination of the results from all six detectors will provide information on the spatial distribution of the fusion reaction rate. The expected time resolution of about 1 ms makes it possible to study changes in the reaction rate due to slow variations in the neutral beam density profile, as well as rapid changes resulting from MHD instabilities. Details of the new instrument, its data acquisition system, simulation results, and electrical noise testing results are discussed in this paper. First experimental data are expected to be taken during the current experimental campaign at NSTX-U.</description><identifier>ISSN: 0034-6748</identifier><identifier>EISSN: 1089-7623</identifier><identifier>DOI: 10.1063/1.4955485</identifier><identifier>PMID: 27910355</identifier><identifier>CODEN: RSINAK</identifier><language>eng</language><publisher>United States: American Institute of Physics</publisher><subject>Charged particles ; Collimation ; Collimators ; CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ; DATA ACQUISITION ; DIAGRAMS ; Electrical noise ; HEAVY ION FUSION REACTIONS ; INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY ; ION IMPLANTATION ; IONS ; MAGNETOHYDRODYNAMICS ; MEV RANGE 01-10 ; Neutral beams ; NSTX DEVICE ; PLASMA DIAGNOSTICS ; PROTONS ; Radiation counters ; REACTION KINETICS ; Scientific apparatus & instruments ; Sensors ; SILICON ; SPATIAL DISTRIBUTION ; SPHERICAL CONFIGURATION ; Spherical plasmas ; SURFACE BARRIER DETECTORS ; THERMONUCLEAR REACTIONS ; TIME DEPENDENCE ; TIME RESOLUTION ; Tokamak devices ; TRITONS ; TRITURUS</subject><ispartof>Review of scientific instruments, 2016-11, Vol.87 (11), p.11D805-11D805</ispartof><rights>Author(s)</rights><rights>2016 Author(s). Published by AIP Publishing.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c481t-7174e5e0490c505ce61de09b6e4f843a5fd855db43813b59b2a9cfe07285b8a53</citedby><cites>FETCH-LOGICAL-c481t-7174e5e0490c505ce61de09b6e4f843a5fd855db43813b59b2a9cfe07285b8a53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://pubs.aip.org/rsi/article-lookup/doi/10.1063/1.4955485$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>230,314,780,784,794,885,4511,27923,27924,76255</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27910355$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/22596568$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Netepenko, A.</creatorcontrib><creatorcontrib>Boeglin, W. U.</creatorcontrib><creatorcontrib>Darrow, D. S.</creatorcontrib><creatorcontrib>Ellis, R.</creatorcontrib><creatorcontrib>Sibilia, M. J.</creatorcontrib><title>Plasma diagnostics in spherical tokamaks with silicon charged-particle detectors</title><title>Review of scientific instruments</title><addtitle>Rev Sci Instrum</addtitle><description>Detection of charged fusion products, such as protons and tritons resulting from D(d, p) t reactions, can be used to determine the position and time dependent fusion reaction rate profile in spherical tokamak plasmas with neutral beam heating. We have developed a prototype instrument consisting of 6 ion-implanted-silicon surface barrier detectors combined with collimators in such a way that each detector can accept 3 MeV protons and 1 MeV tritons and thus provides a curved view across the plasma cross section. The combination of the results from all six detectors will provide information on the spatial distribution of the fusion reaction rate. The expected time resolution of about 1 ms makes it possible to study changes in the reaction rate due to slow variations in the neutral beam density profile, as well as rapid changes resulting from MHD instabilities. Details of the new instrument, its data acquisition system, simulation results, and electrical noise testing results are discussed in this paper. First experimental data are expected to be taken during the current experimental campaign at NSTX-U.</description><subject>Charged particles</subject><subject>Collimation</subject><subject>Collimators</subject><subject>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</subject><subject>DATA ACQUISITION</subject><subject>DIAGRAMS</subject><subject>Electrical noise</subject><subject>HEAVY ION FUSION REACTIONS</subject><subject>INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY</subject><subject>ION IMPLANTATION</subject><subject>IONS</subject><subject>MAGNETOHYDRODYNAMICS</subject><subject>MEV RANGE 01-10</subject><subject>Neutral beams</subject><subject>NSTX DEVICE</subject><subject>PLASMA DIAGNOSTICS</subject><subject>PROTONS</subject><subject>Radiation counters</subject><subject>REACTION KINETICS</subject><subject>Scientific apparatus & instruments</subject><subject>Sensors</subject><subject>SILICON</subject><subject>SPATIAL DISTRIBUTION</subject><subject>SPHERICAL CONFIGURATION</subject><subject>Spherical plasmas</subject><subject>SURFACE BARRIER DETECTORS</subject><subject>THERMONUCLEAR REACTIONS</subject><subject>TIME DEPENDENCE</subject><subject>TIME RESOLUTION</subject><subject>Tokamak devices</subject><subject>TRITONS</subject><subject>TRITURUS</subject><issn>0034-6748</issn><issn>1089-7623</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp90cFu1DAQBmALgehSOPACKBIXipTisT2JfawqCkiV6AHOluNMum6TONhZEG-PV7u0J_DFl8-_f3sYew38HHgjP8C5MohK4xO2Aa5N3TZCPmUbzqWqm1bpE_Yi5zteFgI8ZyeiNcAl4obd3IwuT67qg7udY16Dz1WYq7xsKQXvxmqN925y97n6FdZtlcMYfJwrv3Xplvp6cakcGanqaSW_xpRfsmeDGzO9Ou6n7PvVx2-Xn-vrr5--XF5c115pWOsWWkVIXBnukaOnBnripmtIDVpJh0OvEftOSQ2yQ9MJZ_xAvBUaO-1QnrK3h9x9aZt9KPdvS7W51LBCoGmw0UW9O6glxR87yqudQvY0jm6muMsWtEItyhXwGPhA7-IuzeUNVoCAliO2pqizg_Ip5pxosEsKk0u_LXC7H4YFexxGsW-Oibtuov5B_v39At4fwL6-W0Oc_5v2T_wzpkdol36QfwAJHZ7G</recordid><startdate>20161101</startdate><enddate>20161101</enddate><creator>Netepenko, A.</creator><creator>Boeglin, W. U.</creator><creator>Darrow, D. S.</creator><creator>Ellis, R.</creator><creator>Sibilia, M. J.</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>20161101</creationdate><title>Plasma diagnostics in spherical tokamaks with silicon charged-particle detectors</title><author>Netepenko, A. ; Boeglin, W. U. ; Darrow, D. S. ; Ellis, R. ; Sibilia, M. J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c481t-7174e5e0490c505ce61de09b6e4f843a5fd855db43813b59b2a9cfe07285b8a53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Charged particles</topic><topic>Collimation</topic><topic>Collimators</topic><topic>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</topic><topic>DATA ACQUISITION</topic><topic>DIAGRAMS</topic><topic>Electrical noise</topic><topic>HEAVY ION FUSION REACTIONS</topic><topic>INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY</topic><topic>ION IMPLANTATION</topic><topic>IONS</topic><topic>MAGNETOHYDRODYNAMICS</topic><topic>MEV RANGE 01-10</topic><topic>Neutral beams</topic><topic>NSTX DEVICE</topic><topic>PLASMA DIAGNOSTICS</topic><topic>PROTONS</topic><topic>Radiation counters</topic><topic>REACTION KINETICS</topic><topic>Scientific apparatus & instruments</topic><topic>Sensors</topic><topic>SILICON</topic><topic>SPATIAL DISTRIBUTION</topic><topic>SPHERICAL CONFIGURATION</topic><topic>Spherical plasmas</topic><topic>SURFACE BARRIER DETECTORS</topic><topic>THERMONUCLEAR REACTIONS</topic><topic>TIME DEPENDENCE</topic><topic>TIME RESOLUTION</topic><topic>Tokamak devices</topic><topic>TRITONS</topic><topic>TRITURUS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Netepenko, A.</creatorcontrib><creatorcontrib>Boeglin, W. U.</creatorcontrib><creatorcontrib>Darrow, D. S.</creatorcontrib><creatorcontrib>Ellis, R.</creatorcontrib><creatorcontrib>Sibilia, M. J.</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>Netepenko, A.</au><au>Boeglin, W. U.</au><au>Darrow, D. S.</au><au>Ellis, R.</au><au>Sibilia, M. J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Plasma diagnostics in spherical tokamaks with silicon charged-particle detectors</atitle><jtitle>Review of scientific instruments</jtitle><addtitle>Rev Sci Instrum</addtitle><date>2016-11-01</date><risdate>2016</risdate><volume>87</volume><issue>11</issue><spage>11D805</spage><epage>11D805</epage><pages>11D805-11D805</pages><issn>0034-6748</issn><eissn>1089-7623</eissn><coden>RSINAK</coden><abstract>Detection of charged fusion products, such as protons and tritons resulting from D(d, p) t reactions, can be used to determine the position and time dependent fusion reaction rate profile in spherical tokamak plasmas with neutral beam heating. We have developed a prototype instrument consisting of 6 ion-implanted-silicon surface barrier detectors combined with collimators in such a way that each detector can accept 3 MeV protons and 1 MeV tritons and thus provides a curved view across the plasma cross section. The combination of the results from all six detectors will provide information on the spatial distribution of the fusion reaction rate. The expected time resolution of about 1 ms makes it possible to study changes in the reaction rate due to slow variations in the neutral beam density profile, as well as rapid changes resulting from MHD instabilities. Details of the new instrument, its data acquisition system, simulation results, and electrical noise testing results are discussed in this paper. First experimental data are expected to be taken during the current experimental campaign at NSTX-U.</abstract><cop>United States</cop><pub>American Institute of Physics</pub><pmid>27910355</pmid><doi>10.1063/1.4955485</doi><tpages>3</tpages></addata></record> |
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| subjects | Charged particles Collimation Collimators CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY DATA ACQUISITION DIAGRAMS Electrical noise HEAVY ION FUSION REACTIONS INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY ION IMPLANTATION IONS MAGNETOHYDRODYNAMICS MEV RANGE 01-10 Neutral beams NSTX DEVICE PLASMA DIAGNOSTICS PROTONS Radiation counters REACTION KINETICS Scientific apparatus & instruments Sensors SILICON SPATIAL DISTRIBUTION SPHERICAL CONFIGURATION Spherical plasmas SURFACE BARRIER DETECTORS THERMONUCLEAR REACTIONS TIME DEPENDENCE TIME RESOLUTION Tokamak devices TRITONS TRITURUS |
| title | Plasma diagnostics in spherical tokamaks with silicon charged-particle detectors |
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