ECH and ECCD modelling studies for DTT
In this work the Electron Cyclotron (EC) physics performances of the EC system foreseen for the new Divertor Tokamak Test facility (DTT) are investigated using the beam tracing code GRAY on the flat top phase of the most recent DTT full power scenario. The whole core plasma region can be reached by...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2023-01-01
|
| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2023/03/epjconf_ec212023_01006.pdf |
| _version_ | 1797894056670396416 |
|---|---|
| author | Baiocchi Benedetta Figini Lorenzo Bruschi Alessandro Fanale Francesco Garavaglia Saul Granucci Gustavo Romano Afra |
| author_facet | Baiocchi Benedetta Figini Lorenzo Bruschi Alessandro Fanale Francesco Garavaglia Saul Granucci Gustavo Romano Afra |
| author_sort | Baiocchi Benedetta |
| collection | DOAJ |
| description | In this work the Electron Cyclotron (EC) physics performances of the EC system foreseen for the new Divertor Tokamak Test facility (DTT) are investigated using the beam tracing code GRAY on the flat top phase of the most recent DTT full power scenario. The whole core plasma region can be reached by EC beams with complete absorption, assuring bulk heating and core current drive (CD) for profile tailoring, and NTM mitigation in correspondence of the rational surfaces. A detailed analysis regarding modifications of the EC propagation, absorption and CD location due to density fluctuations caused by pellet injection is performed. The compatibility between the EC system and the pellet injection system is verified: the density variations due to pellet injection are foreseen to negligibly influence the EC performances, allowing the EC beams to reach the plasma central region for bulk heating and to drive current on the rational surfaces for NTM mitigation. Finally, the polarization variations originated by the angle steering foreseen for the operational and physics tasks accomplishment during the flat top phase of the discharge are assessed. Negligible power losses have been found keeping fixed polarization during the needed steering. |
| first_indexed | 2024-04-10T07:02:44Z |
| format | Article |
| id | doaj.art-5e828e650b4a44088241c5babe982c0a |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-04-10T07:02:44Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-5e828e650b4a44088241c5babe982c0a2023-02-27T15:17:49ZengEDP SciencesEPJ Web of Conferences2100-014X2023-01-012770100610.1051/epjconf/202327701006epjconf_ec212023_01006ECH and ECCD modelling studies for DTTBaiocchi Benedetta0Figini Lorenzo1Bruschi Alessandro2Fanale Francesco3Garavaglia Saul4Granucci Gustavo5Romano Afra6Institute for Plasma Science and Technology – CNRInstitute for Plasma Science and Technology – CNRInstitute for Plasma Science and Technology – CNREDP ENEA, Fusion and Nuclear Safety Department, C. R. FrascatiInstitute for Plasma Science and Technology – CNRInstitute for Plasma Science and Technology – CNREDP ENEA, Fusion and Nuclear Safety Department, C. R. FrascatiIn this work the Electron Cyclotron (EC) physics performances of the EC system foreseen for the new Divertor Tokamak Test facility (DTT) are investigated using the beam tracing code GRAY on the flat top phase of the most recent DTT full power scenario. The whole core plasma region can be reached by EC beams with complete absorption, assuring bulk heating and core current drive (CD) for profile tailoring, and NTM mitigation in correspondence of the rational surfaces. A detailed analysis regarding modifications of the EC propagation, absorption and CD location due to density fluctuations caused by pellet injection is performed. The compatibility between the EC system and the pellet injection system is verified: the density variations due to pellet injection are foreseen to negligibly influence the EC performances, allowing the EC beams to reach the plasma central region for bulk heating and to drive current on the rational surfaces for NTM mitigation. Finally, the polarization variations originated by the angle steering foreseen for the operational and physics tasks accomplishment during the flat top phase of the discharge are assessed. Negligible power losses have been found keeping fixed polarization during the needed steering.https://www.epj-conferences.org/articles/epjconf/pdf/2023/03/epjconf_ec212023_01006.pdf |
| spellingShingle | Baiocchi Benedetta Figini Lorenzo Bruschi Alessandro Fanale Francesco Garavaglia Saul Granucci Gustavo Romano Afra ECH and ECCD modelling studies for DTT EPJ Web of Conferences |
| title | ECH and ECCD modelling studies for DTT |
| title_full | ECH and ECCD modelling studies for DTT |
| title_fullStr | ECH and ECCD modelling studies for DTT |
| title_full_unstemmed | ECH and ECCD modelling studies for DTT |
| title_short | ECH and ECCD modelling studies for DTT |
| title_sort | ech and eccd modelling studies for dtt |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2023/03/epjconf_ec212023_01006.pdf |
| work_keys_str_mv | AT baiocchibenedetta echandeccdmodellingstudiesfordtt AT figinilorenzo echandeccdmodellingstudiesfordtt AT bruschialessandro echandeccdmodellingstudiesfordtt AT fanalefrancesco echandeccdmodellingstudiesfordtt AT garavagliasaul echandeccdmodellingstudiesfordtt AT granuccigustavo echandeccdmodellingstudiesfordtt AT romanoafra echandeccdmodellingstudiesfordtt |