Neutral particle analyzer diagnostic on the National Spherical Torus Experiment
The neutral particle analyzer (NPA) diagnostic on the National Spherical Torus Experiment (NSTX) utilizes a PPPL-designed EIIB spectrometer that measures the energy spectra of minority hydrogen and bulk deuterium species simultaneously with 39 energy channels per mass specie and a time resolution of...
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| Veröffentlicht in: | Review of Scientific Instruments 2004-10, Vol.75 (10), p.3625-3627 |
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| creator | Medley, S. S. Roquemore, A. L. |
| description | The neutral particle analyzer (NPA) diagnostic on the National Spherical Torus Experiment (NSTX) utilizes a PPPL-designed EIIB spectrometer that measures the energy spectra of minority hydrogen and bulk deuterium species simultaneously with 39 energy channels per mass specie and a time resolution of
1
ms
. The calibrated energy range is
E=0.5–150
keV
and the energy resolution varies from
ΔE/E=3%–7%
over the surface of the microchannel plate detector. The NPA measures Maxwellian spectra of residual hydrogen to obtain ion temperatures and measures the energetic ion spectra produced by injection of up to
100
keV
deuterium neutral beams into deuterium plasmas. The NPA views across the coinjection paths of the three neutral beam sources on NSTX which localizes the measured charge exchange effux to the intersection region. The incorporation of horizontal scanning for the NPA over a sightline tangency range of
R
tan
=125–−75
cm
has enabled measurement of the anisotropic energy distribution of the beam ions. Vertical scanning allows measurements to be made from the horizontal midplane through an angle of
26°
downward. A description of the NPA diagnostic on NSTX will be presented along with illustrations of measurement capability. |
| doi_str_mv | 10.1063/1.1788859 |
| format | Article |
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1
ms
. The calibrated energy range is
E=0.5–150
keV
and the energy resolution varies from
ΔE/E=3%–7%
over the surface of the microchannel plate detector. The NPA measures Maxwellian spectra of residual hydrogen to obtain ion temperatures and measures the energetic ion spectra produced by injection of up to
100
keV
deuterium neutral beams into deuterium plasmas. The NPA views across the coinjection paths of the three neutral beam sources on NSTX which localizes the measured charge exchange effux to the intersection region. The incorporation of horizontal scanning for the NPA over a sightline tangency range of
R
tan
=125–−75
cm
has enabled measurement of the anisotropic energy distribution of the beam ions. Vertical scanning allows measurements to be made from the horizontal midplane through an angle of
26°
downward. A description of the NPA diagnostic on NSTX will be presented along with illustrations of measurement capability.</description><identifier>ISSN: 0034-6748</identifier><identifier>EISSN: 1089-7623</identifier><identifier>DOI: 10.1063/1.1788859</identifier><identifier>CODEN: RSINAK</identifier><language>eng</language><publisher>United States</publisher><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY ; CHARGE EXCHANGE ; DEUTERIUM ; ELECTRON TEMPERATURE ; ENERGY RESOLUTION ; ENERGY SPECTRA ; ION BEAMS ; ION SOURCES ; ION TEMPERATURE ; KEV RANGE ; NEUTRAL BEAM SOURCES ; NEUTRAL PARTICLE ANALYZERS ; NSTX DEVICE ; PLASMA BEAM INJECTION ; PLASMA DENSITY ; PLASMA DIAGNOSTICS ; PLASMA HEATING ; SPHERICAL CONFIGURATION ; TAIL IONS ; TIME RESOLUTION</subject><ispartof>Review of Scientific Instruments, 2004-10, Vol.75 (10), p.3625-3627</ispartof><rights>American Institute of Physics</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c391t-9a1d804ba69edc1e153ce4d2c4f1ae9c7aa9e855d95d5382795264a5ae968a713</citedby><cites>FETCH-LOGICAL-c391t-9a1d804ba69edc1e153ce4d2c4f1ae9c7aa9e855d95d5382795264a5ae968a713</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/10.1063/1.1788859$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>230,309,310,314,780,784,789,790,794,885,1559,4511,23929,23930,25139,27923,27924,76255,76261</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/20636704$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Medley, S. S.</creatorcontrib><creatorcontrib>Roquemore, A. L.</creatorcontrib><title>Neutral particle analyzer diagnostic on the National Spherical Torus Experiment</title><title>Review of Scientific Instruments</title><description>The neutral particle analyzer (NPA) diagnostic on the National Spherical Torus Experiment (NSTX) utilizes a PPPL-designed EIIB spectrometer that measures the energy spectra of minority hydrogen and bulk deuterium species simultaneously with 39 energy channels per mass specie and a time resolution of
1
ms
. The calibrated energy range is
E=0.5–150
keV
and the energy resolution varies from
ΔE/E=3%–7%
over the surface of the microchannel plate detector. The NPA measures Maxwellian spectra of residual hydrogen to obtain ion temperatures and measures the energetic ion spectra produced by injection of up to
100
keV
deuterium neutral beams into deuterium plasmas. The NPA views across the coinjection paths of the three neutral beam sources on NSTX which localizes the measured charge exchange effux to the intersection region. The incorporation of horizontal scanning for the NPA over a sightline tangency range of
R
tan
=125–−75
cm
has enabled measurement of the anisotropic energy distribution of the beam ions. Vertical scanning allows measurements to be made from the horizontal midplane through an angle of
26°
downward. A description of the NPA diagnostic on NSTX will be presented along with illustrations of measurement capability.</description><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</subject><subject>CHARGE EXCHANGE</subject><subject>DEUTERIUM</subject><subject>ELECTRON TEMPERATURE</subject><subject>ENERGY RESOLUTION</subject><subject>ENERGY SPECTRA</subject><subject>ION BEAMS</subject><subject>ION SOURCES</subject><subject>ION TEMPERATURE</subject><subject>KEV RANGE</subject><subject>NEUTRAL BEAM SOURCES</subject><subject>NEUTRAL PARTICLE ANALYZERS</subject><subject>NSTX DEVICE</subject><subject>PLASMA BEAM INJECTION</subject><subject>PLASMA DENSITY</subject><subject>PLASMA DIAGNOSTICS</subject><subject>PLASMA HEATING</subject><subject>SPHERICAL CONFIGURATION</subject><subject>TAIL IONS</subject><subject>TIME RESOLUTION</subject><issn>0034-6748</issn><issn>1089-7623</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNp9kE1Lw0AQhhdRsFYP_oMFTwqpO0k22T1KqR9Q2oP1vIybiY3UJOxuxfrr3dqiB8G5zNfDy8zL2DmIEYgiu4YRlEopqQ_YAITSSVmk2SEbCJHlSVHm6pideP8qYkiAAZvPaB0crniPLjR2RRxbXG0-yfGqwZe283HKu5aHJfEZhqaLa_7YL8k1NlaLzq09n3z0sX-jNpyyoxpXns72eciebieL8X0ynd89jG-mic00hEQjVErkz1hoqiwQyMxSXqU2rwFJ2xJRk5Ky0rKSmUpLLdMiRxl3hcISsiG72OluDzTeNoHs0nZtSzaYNDpRlCKP1OWOsq7z3lFt-ngmuo0BYbZ-GTB7vyJ7tWO3Yt-P_sDvnfsFTV_V_8F_lb8A_955pw</recordid><startdate>200410</startdate><enddate>200410</enddate><creator>Medley, S. S.</creator><creator>Roquemore, A. L.</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>200410</creationdate><title>Neutral particle analyzer diagnostic on the National Spherical Torus Experiment</title><author>Medley, S. S. ; Roquemore, A. L.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c391t-9a1d804ba69edc1e153ce4d2c4f1ae9c7aa9e855d95d5382795264a5ae968a713</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</topic><topic>CHARGE EXCHANGE</topic><topic>DEUTERIUM</topic><topic>ELECTRON TEMPERATURE</topic><topic>ENERGY RESOLUTION</topic><topic>ENERGY SPECTRA</topic><topic>ION BEAMS</topic><topic>ION SOURCES</topic><topic>ION TEMPERATURE</topic><topic>KEV RANGE</topic><topic>NEUTRAL BEAM SOURCES</topic><topic>NEUTRAL PARTICLE ANALYZERS</topic><topic>NSTX DEVICE</topic><topic>PLASMA BEAM INJECTION</topic><topic>PLASMA DENSITY</topic><topic>PLASMA DIAGNOSTICS</topic><topic>PLASMA HEATING</topic><topic>SPHERICAL CONFIGURATION</topic><topic>TAIL IONS</topic><topic>TIME RESOLUTION</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Medley, S. S.</creatorcontrib><creatorcontrib>Roquemore, A. L.</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Review of Scientific Instruments</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Medley, S. S.</au><au>Roquemore, A. L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Neutral particle analyzer diagnostic on the National Spherical Torus Experiment</atitle><jtitle>Review of Scientific Instruments</jtitle><date>2004-10</date><risdate>2004</risdate><volume>75</volume><issue>10</issue><spage>3625</spage><epage>3627</epage><pages>3625-3627</pages><issn>0034-6748</issn><eissn>1089-7623</eissn><coden>RSINAK</coden><abstract>The neutral particle analyzer (NPA) diagnostic on the National Spherical Torus Experiment (NSTX) utilizes a PPPL-designed EIIB spectrometer that measures the energy spectra of minority hydrogen and bulk deuterium species simultaneously with 39 energy channels per mass specie and a time resolution of
1
ms
. The calibrated energy range is
E=0.5–150
keV
and the energy resolution varies from
ΔE/E=3%–7%
over the surface of the microchannel plate detector. The NPA measures Maxwellian spectra of residual hydrogen to obtain ion temperatures and measures the energetic ion spectra produced by injection of up to
100
keV
deuterium neutral beams into deuterium plasmas. The NPA views across the coinjection paths of the three neutral beam sources on NSTX which localizes the measured charge exchange effux to the intersection region. The incorporation of horizontal scanning for the NPA over a sightline tangency range of
R
tan
=125–−75
cm
has enabled measurement of the anisotropic energy distribution of the beam ions. Vertical scanning allows measurements to be made from the horizontal midplane through an angle of
26°
downward. A description of the NPA diagnostic on NSTX will be presented along with illustrations of measurement capability.</abstract><cop>United States</cop><doi>10.1063/1.1788859</doi><tpages>3</tpages></addata></record> |
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| ispartof | Review of Scientific Instruments, 2004-10, Vol.75 (10), p.3625-3627 |
| issn | 0034-6748 1089-7623 |
| language | eng |
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| source | AIP Journals Complete; AIP Digital Archive |
| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY CHARGE EXCHANGE DEUTERIUM ELECTRON TEMPERATURE ENERGY RESOLUTION ENERGY SPECTRA ION BEAMS ION SOURCES ION TEMPERATURE KEV RANGE NEUTRAL BEAM SOURCES NEUTRAL PARTICLE ANALYZERS NSTX DEVICE PLASMA BEAM INJECTION PLASMA DENSITY PLASMA DIAGNOSTICS PLASMA HEATING SPHERICAL CONFIGURATION TAIL IONS TIME RESOLUTION |
| title | Neutral particle analyzer diagnostic on the National Spherical Torus Experiment |
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