Loss cone boundary measurement using diagnostic neutral beam and neutral particle analyzer in a compact helical system
A horizontally scannable diagnostic neutral beam (DNB) has been installed on the compact helical system (CHS) in order to study the confinement of energetic ions with different pitch angles by varying the injection angle. The DNB has been designed to provide energetic ions as a test particle source...
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| Veröffentlicht in: | Review of Scientific Instruments 2004-10, Vol.75 (10), p.3607-3609 |
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| container_issue | 10 |
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| container_title | Review of Scientific Instruments |
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| creator | Matsushita, H. Ida, K. Okamura, S. Isobe, M. Akiyama, R. Yoshimura, Y. |
| description | A horizontally scannable diagnostic neutral beam (DNB) has been installed on the compact helical system (CHS) in order to study the confinement of energetic ions with different pitch angles by varying the injection angle. The DNB has been designed to provide energetic ions as a test particle source with (1) no heating to background plasma and (2) small divergence angle. A charge-exchange neutral particle analyzer (NPA) to measure energetic ions injected by the DNB is also scannable and varies the observation angle on the equatorial plane in CHS. A combination of horizontally scannable DNB and NPA provides information on whether the energetic ions with different pitch angle are confined in the plasma or immediately lost. The experimental results are consistent with the prediction of single particle full orbit calculation in CHS. |
| doi_str_mv | 10.1063/1.1785263 |
| format | Article |
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The DNB has been designed to provide energetic ions as a test particle source with (1) no heating to background plasma and (2) small divergence angle. A charge-exchange neutral particle analyzer (NPA) to measure energetic ions injected by the DNB is also scannable and varies the observation angle on the equatorial plane in CHS. A combination of horizontally scannable DNB and NPA provides information on whether the energetic ions with different pitch angle are confined in the plasma or immediately lost. 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The DNB has been designed to provide energetic ions as a test particle source with (1) no heating to background plasma and (2) small divergence angle. A charge-exchange neutral particle analyzer (NPA) to measure energetic ions injected by the DNB is also scannable and varies the observation angle on the equatorial plane in CHS. A combination of horizontally scannable DNB and NPA provides information on whether the energetic ions with different pitch angle are confined in the plasma or immediately lost. The experimental results are consistent with the prediction of single particle full orbit calculation in CHS.</description><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</subject><subject>BOUNDARY LAYERS</subject><subject>CHARGE EXCHANGE</subject><subject>LOSS CONE</subject><subject>NEUTRAL PARTICLE ANALYZERS</subject><subject>PLASMA BEAM INJECTION</subject><subject>PLASMA CONFINEMENT</subject><subject>PLASMA DIAGNOSTICS</subject><subject>PLASMA HEATING</subject><subject>TAIL IONS</subject><subject>TEST PARTICLES</subject><issn>0034-6748</issn><issn>1089-7623</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LxDAQhoMouK4e_AcBTwpdk7RN0qMsfsGCFz2XNJnsVtq0JOnC-uvNsoseBOcyMPPwMvMgdE3JghKe39MFFbJkPD9BM0pklQnO8lM0IyQvMi4KeY4uQvgkqUpKZ2i7GkLAenCAm2FyRvkd7kGFyUMPLuIptG6NTavWbgix1djBFL3qcAOqx8qZn8GofNp3kIaq232Bx63DKkX3o9IRb6BrdcLCLkToL9GZVV2Aq2Ofo4-nx_flS7Z6e35dPqwynVc0ZkxKUmpmeCltaYi21gpRAFRMcsOpyLUFIywjwE3DqqagQhBBeWl1JVlJ8zm6OeTuj6-DbiPoTfrWgY41S8I4r2Sibg-U9smGB1uPvu2TipqSeq-1pvVRa2LvDuw-TMV2cD_wdvC_YD0a-x_8N_kbxCeHxA</recordid><startdate>200410</startdate><enddate>200410</enddate><creator>Matsushita, H.</creator><creator>Ida, K.</creator><creator>Okamura, S.</creator><creator>Isobe, M.</creator><creator>Akiyama, R.</creator><creator>Yoshimura, Y.</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>200410</creationdate><title>Loss cone boundary measurement using diagnostic neutral beam and neutral particle analyzer in a compact helical system</title><author>Matsushita, H. ; Ida, K. ; Okamura, S. ; Isobe, M. ; Akiyama, R. ; Yoshimura, Y.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c391t-28805c2d658f5d0cfff774ee9286d6173cfed7f20e6db29b417707165fc982513</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</topic><topic>BOUNDARY LAYERS</topic><topic>CHARGE EXCHANGE</topic><topic>LOSS CONE</topic><topic>NEUTRAL PARTICLE ANALYZERS</topic><topic>PLASMA BEAM INJECTION</topic><topic>PLASMA CONFINEMENT</topic><topic>PLASMA DIAGNOSTICS</topic><topic>PLASMA HEATING</topic><topic>TAIL IONS</topic><topic>TEST PARTICLES</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Matsushita, H.</creatorcontrib><creatorcontrib>Ida, K.</creatorcontrib><creatorcontrib>Okamura, S.</creatorcontrib><creatorcontrib>Isobe, M.</creatorcontrib><creatorcontrib>Akiyama, R.</creatorcontrib><creatorcontrib>Yoshimura, Y.</creatorcontrib><creatorcontrib>the CHS Group</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>Matsushita, H.</au><au>Ida, K.</au><au>Okamura, S.</au><au>Isobe, M.</au><au>Akiyama, R.</au><au>Yoshimura, Y.</au><aucorp>the CHS Group</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Loss cone boundary measurement using diagnostic neutral beam and neutral particle analyzer in a compact helical system</atitle><jtitle>Review of Scientific Instruments</jtitle><date>2004-10</date><risdate>2004</risdate><volume>75</volume><issue>10</issue><spage>3607</spage><epage>3609</epage><pages>3607-3609</pages><issn>0034-6748</issn><eissn>1089-7623</eissn><coden>RSINAK</coden><abstract>A horizontally scannable diagnostic neutral beam (DNB) has been installed on the compact helical system (CHS) in order to study the confinement of energetic ions with different pitch angles by varying the injection angle. 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| fulltext | fulltext |
| identifier | ISSN: 0034-6748 |
| ispartof | Review of Scientific Instruments, 2004-10, Vol.75 (10), p.3607-3609 |
| issn | 0034-6748 1089-7623 |
| language | eng |
| recordid | cdi_scitation_primary_10_1063_1_1785263 |
| source | AIP Journals Complete; AIP Digital Archive |
| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY BOUNDARY LAYERS CHARGE EXCHANGE LOSS CONE NEUTRAL PARTICLE ANALYZERS PLASMA BEAM INJECTION PLASMA CONFINEMENT PLASMA DIAGNOSTICS PLASMA HEATING TAIL IONS TEST PARTICLES |
| title | Loss cone boundary measurement using diagnostic neutral beam and neutral particle analyzer in a compact helical system |
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