A collective scattering system for measuring electron gyroscale fluctuations on the National Spherical Torus Experiment
A collective scattering system has been installed on the National Spherical Torus Experiment (NSTX) to measure electron gyroscale fluctuations in NSTX plasmas. The system measures fluctuations with k ⊥ ρ e ≲ 0.6 and k ⊥ ≲ 20 cm − 1 . Up to five distinct wavenumbers are measured simultaneously, and...
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| Veröffentlicht in: | Review of scientific instruments 2008-12, Vol.79 (12), p.123501-123501-6 |
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| container_end_page | 123501-6 |
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| container_issue | 12 |
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| container_title | Review of scientific instruments |
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| creator | Smith, D. R. Mazzucato, E. Lee, W. Park, H. K. Domier, C. W. Luhmann, N. C. |
| description | A collective scattering system has been installed on the National Spherical Torus Experiment (NSTX) to measure electron gyroscale fluctuations in NSTX plasmas. The system measures fluctuations with
k
⊥
ρ
e
≲
0.6
and
k
⊥
≲
20
cm
−
1
. Up to five distinct wavenumbers are measured simultaneously, and the large toroidal curvature of NSTX plasmas provides enhanced spatial localization. Steerable optics can position the scattering volume throughout the plasma from the magnetic axis to the outboard edge. Initial measurements indicate rich turbulent dynamics on the electron gyroscale. The system will be a valuable tool for investigating the connection between electron temperature gradient turbulence and electron thermal transport in NSTX plasmas. |
| doi_str_mv | 10.1063/1.3039415 |
| format | Article |
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k
⊥
ρ
e
≲
0.6
and
k
⊥
≲
20
cm
−
1
. Up to five distinct wavenumbers are measured simultaneously, and the large toroidal curvature of NSTX plasmas provides enhanced spatial localization. Steerable optics can position the scattering volume throughout the plasma from the magnetic axis to the outboard edge. Initial measurements indicate rich turbulent dynamics on the electron gyroscale. The system will be a valuable tool for investigating the connection between electron temperature gradient turbulence and electron thermal transport in NSTX plasmas.</description><identifier>ISSN: 0034-6748</identifier><identifier>EISSN: 1089-7623</identifier><identifier>DOI: 10.1063/1.3039415</identifier><identifier>PMID: 19123561</identifier><identifier>CODEN: RSINAK</identifier><language>eng</language><publisher>United States: American Institute of Physics</publisher><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY ; ELECTRON TEMPERATURE ; ELECTRONS ; FLUCTUATIONS ; NSTX DEVICE ; PLASMA ; PLASMA CONFINEMENT ; SCATTERING ; SPHERICAL CONFIGURATION ; TEMPERATURE GRADIENTS ; TURBULENCE</subject><ispartof>Review of scientific instruments, 2008-12, Vol.79 (12), p.123501-123501-6</ispartof><rights>2008 American Institute of Physics</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c401t-2d9bd2510227c76d5109cc2c0aa5fd3998f578b561ba3757ea6c73cb975530653</citedby><cites>FETCH-LOGICAL-c401t-2d9bd2510227c76d5109cc2c0aa5fd3998f578b561ba3757ea6c73cb975530653</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/10.1063/1.3039415$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>230,314,777,781,791,882,1554,4498,27905,27906,76133,76139</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19123561$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/21266724$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Smith, D. R.</creatorcontrib><creatorcontrib>Mazzucato, E.</creatorcontrib><creatorcontrib>Lee, W.</creatorcontrib><creatorcontrib>Park, H. K.</creatorcontrib><creatorcontrib>Domier, C. W.</creatorcontrib><creatorcontrib>Luhmann, N. C.</creatorcontrib><title>A collective scattering system for measuring electron gyroscale fluctuations on the National Spherical Torus Experiment</title><title>Review of scientific instruments</title><addtitle>Rev Sci Instrum</addtitle><description>A collective scattering system has been installed on the National Spherical Torus Experiment (NSTX) to measure electron gyroscale fluctuations in NSTX plasmas. The system measures fluctuations with
k
⊥
ρ
e
≲
0.6
and
k
⊥
≲
20
cm
−
1
. Up to five distinct wavenumbers are measured simultaneously, and the large toroidal curvature of NSTX plasmas provides enhanced spatial localization. Steerable optics can position the scattering volume throughout the plasma from the magnetic axis to the outboard edge. Initial measurements indicate rich turbulent dynamics on the electron gyroscale. The system will be a valuable tool for investigating the connection between electron temperature gradient turbulence and electron thermal transport in NSTX plasmas.</description><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</subject><subject>ELECTRON TEMPERATURE</subject><subject>ELECTRONS</subject><subject>FLUCTUATIONS</subject><subject>NSTX DEVICE</subject><subject>PLASMA</subject><subject>PLASMA CONFINEMENT</subject><subject>SCATTERING</subject><subject>SPHERICAL CONFIGURATION</subject><subject>TEMPERATURE GRADIENTS</subject><subject>TURBULENCE</subject><issn>0034-6748</issn><issn>1089-7623</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNp1kUtLxDAUhYMoOj4W_gEJCIKLah5NMtkIg_gC0YW6Dml661TaZmxSdf69mZmCK7NJ7s3H4Z57EDqm5IISyS_pBSdc51RsoQklU50pyfg2mhDC80yqfLqH9kP4IOkISnfRHtWUcSHpBH3PsPNNAy7WX4CDszFCX3fvOCxDhBZXvsct2DCsm7ACe9_h92XvE9wArprBxcHG2ncBp584B_y0Lm2DXxbzpJY4_Or7IeCbn0WqW-jiIdqpbBPgaLwP0Nvtzev1ffb4fPdwPXvMXE5ozFipi5IJShhTTskyvbRzzBFrRVVyraeVUNMiWSksV0KBlU5xV2glBCdS8AN0utH1IdYmuDqCmzvfdcmIYZRJqVieqLMNtej95wAhmrYODprGduCHYKTWnMlcJvB8A7rkP_RQmUXyY_ulocSssjDUjFkk9mQUHYoWyj9yXH4CrjbAaqz1yv5Xm5m_mMwYE_8FsT2aXA</recordid><startdate>20081201</startdate><enddate>20081201</enddate><creator>Smith, D. R.</creator><creator>Mazzucato, E.</creator><creator>Lee, W.</creator><creator>Park, H. K.</creator><creator>Domier, C. W.</creator><creator>Luhmann, N. C.</creator><general>American Institute of Physics</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>OTOTI</scope></search><sort><creationdate>20081201</creationdate><title>A collective scattering system for measuring electron gyroscale fluctuations on the National Spherical Torus Experiment</title><author>Smith, D. R. ; Mazzucato, E. ; Lee, W. ; Park, H. K. ; Domier, C. W. ; Luhmann, N. C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c401t-2d9bd2510227c76d5109cc2c0aa5fd3998f578b561ba3757ea6c73cb975530653</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</topic><topic>ELECTRON TEMPERATURE</topic><topic>ELECTRONS</topic><topic>FLUCTUATIONS</topic><topic>NSTX DEVICE</topic><topic>PLASMA</topic><topic>PLASMA CONFINEMENT</topic><topic>SCATTERING</topic><topic>SPHERICAL CONFIGURATION</topic><topic>TEMPERATURE GRADIENTS</topic><topic>TURBULENCE</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Smith, D. R.</creatorcontrib><creatorcontrib>Mazzucato, E.</creatorcontrib><creatorcontrib>Lee, W.</creatorcontrib><creatorcontrib>Park, H. K.</creatorcontrib><creatorcontrib>Domier, C. W.</creatorcontrib><creatorcontrib>Luhmann, N. C.</creatorcontrib><collection>PubMed</collection><collection>CrossRef</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>Smith, D. R.</au><au>Mazzucato, E.</au><au>Lee, W.</au><au>Park, H. K.</au><au>Domier, C. W.</au><au>Luhmann, N. C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A collective scattering system for measuring electron gyroscale fluctuations on the National Spherical Torus Experiment</atitle><jtitle>Review of scientific instruments</jtitle><addtitle>Rev Sci Instrum</addtitle><date>2008-12-01</date><risdate>2008</risdate><volume>79</volume><issue>12</issue><spage>123501</spage><epage>123501-6</epage><pages>123501-123501-6</pages><issn>0034-6748</issn><eissn>1089-7623</eissn><coden>RSINAK</coden><abstract>A collective scattering system has been installed on the National Spherical Torus Experiment (NSTX) to measure electron gyroscale fluctuations in NSTX plasmas. The system measures fluctuations with
k
⊥
ρ
e
≲
0.6
and
k
⊥
≲
20
cm
−
1
. Up to five distinct wavenumbers are measured simultaneously, and the large toroidal curvature of NSTX plasmas provides enhanced spatial localization. Steerable optics can position the scattering volume throughout the plasma from the magnetic axis to the outboard edge. Initial measurements indicate rich turbulent dynamics on the electron gyroscale. The system will be a valuable tool for investigating the connection between electron temperature gradient turbulence and electron thermal transport in NSTX plasmas.</abstract><cop>United States</cop><pub>American Institute of Physics</pub><pmid>19123561</pmid><doi>10.1063/1.3039415</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0034-6748 |
| ispartof | Review of scientific instruments, 2008-12, Vol.79 (12), p.123501-123501-6 |
| issn | 0034-6748 1089-7623 |
| language | eng |
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| source | AIP Digital Archive; Alma/SFX Local Collection; AIP Journals (American Institute of Physics) |
| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY ELECTRON TEMPERATURE ELECTRONS FLUCTUATIONS NSTX DEVICE PLASMA PLASMA CONFINEMENT SCATTERING SPHERICAL CONFIGURATION TEMPERATURE GRADIENTS TURBULENCE |
| title | A collective scattering system for measuring electron gyroscale fluctuations on the National Spherical Torus Experiment |
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