Design and development of the ITER CTS diagnostic
The Collective Thomson Scattering (CTS) diagnostic will be a primary diagnostic for measuring the dynamics of the confined fusion born alpha particles in ITER and will be the only diagnostic for alphas below 1.7 MeV [1]. The probe beam of the CTS diagnostic comes from a 60 GHz 1 MW gyrotron operated...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2019-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2019/08/epjconf_ec2018_03002.pdf |
| _version_ | 1818725820652322816 |
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| author | Korsholm Søren B. Gonçalves Bruno Gutierrez Heidi E. Henriques Elsa Infante Virginia Jensen Thomas Jessen Martin Klinkby Esben B. Larsen Axel W. Leipold Frank Lopes André Luis Raul Naulin Volker Nielsen Stefan K. Nonbøl Erik Rasmussen Jesper Salewski Mirko Stejner Morten Taormina Arianna Vale Alberto Vidal Catarina Sanchez Laura Ballester Raul M. Udintsev Victor |
| author_facet | Korsholm Søren B. Gonçalves Bruno Gutierrez Heidi E. Henriques Elsa Infante Virginia Jensen Thomas Jessen Martin Klinkby Esben B. Larsen Axel W. Leipold Frank Lopes André Luis Raul Naulin Volker Nielsen Stefan K. Nonbøl Erik Rasmussen Jesper Salewski Mirko Stejner Morten Taormina Arianna Vale Alberto Vidal Catarina Sanchez Laura Ballester Raul M. Udintsev Victor |
| author_sort | Korsholm Søren B. |
| collection | DOAJ |
| description | The Collective Thomson Scattering (CTS) diagnostic will be a primary diagnostic for measuring the dynamics of the confined fusion born alpha particles in ITER and will be the only diagnostic for alphas below 1.7 MeV [1]. The probe beam of the CTS diagnostic comes from a 60 GHz 1 MW gyrotron operated in a ~100 Hz modulation sequence. In the plasma, the probing beam will be scattered off fluctuations primarily due to the dynamics of the ions. Seven fixed receiver mirrors will pick up scattered radiation (the CTS signal) from seven measurement volumes along the probe beam covering the cross section of the plasma. The diagnostic is planned to provide a temporal resolution of ~100 ms and a spatial resolution of ~a/4 in the core and ~a/20 near the plasma edge where a = 2.0 m is the nominal minor radius of ITER. The front-end quasi-optics will be installed in an equatorial port plug (EPP#12). A particular challenge will be to pass the probing beam through the fundamental electron cyclotron resonance, which is located in the port plug (R=10.3 m) for the nominal magnetic field Bt = 5.3 T. Hence, particular mitigation actions against arcing have to be applied. The status of the design and specific challenges will be discussed. |
| first_indexed | 2024-12-17T21:48:23Z |
| format | Article |
| id | doaj.art-3a1a56e4de024499ae62f81211dfc0de |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-17T21:48:23Z |
| publishDate | 2019-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-3a1a56e4de024499ae62f81211dfc0de2022-12-21T21:31:24ZengEDP SciencesEPJ Web of Conferences2100-014X2019-01-012030300210.1051/epjconf/201920303002epjconf_ec2018_03002Design and development of the ITER CTS diagnosticKorsholm Søren B.Gonçalves BrunoGutierrez Heidi E.Henriques ElsaInfante VirginiaJensen ThomasJessen MartinKlinkby Esben B.Larsen Axel W.Leipold FrankLopes AndréLuis RaulNaulin VolkerNielsen Stefan K.Nonbøl ErikRasmussen JesperSalewski MirkoStejner MortenTaormina AriannaVale AlbertoVidal CatarinaSanchez LauraBallester Raul M.Udintsev VictorThe Collective Thomson Scattering (CTS) diagnostic will be a primary diagnostic for measuring the dynamics of the confined fusion born alpha particles in ITER and will be the only diagnostic for alphas below 1.7 MeV [1]. The probe beam of the CTS diagnostic comes from a 60 GHz 1 MW gyrotron operated in a ~100 Hz modulation sequence. In the plasma, the probing beam will be scattered off fluctuations primarily due to the dynamics of the ions. Seven fixed receiver mirrors will pick up scattered radiation (the CTS signal) from seven measurement volumes along the probe beam covering the cross section of the plasma. The diagnostic is planned to provide a temporal resolution of ~100 ms and a spatial resolution of ~a/4 in the core and ~a/20 near the plasma edge where a = 2.0 m is the nominal minor radius of ITER. The front-end quasi-optics will be installed in an equatorial port plug (EPP#12). A particular challenge will be to pass the probing beam through the fundamental electron cyclotron resonance, which is located in the port plug (R=10.3 m) for the nominal magnetic field Bt = 5.3 T. Hence, particular mitigation actions against arcing have to be applied. The status of the design and specific challenges will be discussed.https://www.epj-conferences.org/articles/epjconf/pdf/2019/08/epjconf_ec2018_03002.pdf |
| spellingShingle | Korsholm Søren B. Gonçalves Bruno Gutierrez Heidi E. Henriques Elsa Infante Virginia Jensen Thomas Jessen Martin Klinkby Esben B. Larsen Axel W. Leipold Frank Lopes André Luis Raul Naulin Volker Nielsen Stefan K. Nonbøl Erik Rasmussen Jesper Salewski Mirko Stejner Morten Taormina Arianna Vale Alberto Vidal Catarina Sanchez Laura Ballester Raul M. Udintsev Victor Design and development of the ITER CTS diagnostic EPJ Web of Conferences |
| title | Design and development of the ITER CTS diagnostic |
| title_full | Design and development of the ITER CTS diagnostic |
| title_fullStr | Design and development of the ITER CTS diagnostic |
| title_full_unstemmed | Design and development of the ITER CTS diagnostic |
| title_short | Design and development of the ITER CTS diagnostic |
| title_sort | design and development of the iter cts diagnostic |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2019/08/epjconf_ec2018_03002.pdf |
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