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The scalings of the thermal energy confinement time in EAST H-mode plasmas
| Content Provider | Scilit |
|---|---|
| Author | Jia, Tianqi Qian, Jinping Chen, Dalong Moreau, Didier Shen, Biao Zhang, Bin Gong, X. Huang, Juan Zhang, Jiayuan Yang, Xiu Da Liang, Ruirong Hu, Yunchan Chen, Lixing He, Yifan Tao, Ye Wang, Zuhao Zeng, Long Sun, Youwen |
| Copyright Year | 2023 |
| Description | Journal: Nuclear Fusion TThis paper describes scalings of the H-mode confinement database of NBI-LHW and ECRH-LHW plasmas in the EAST tokamak. The fundamental information of the EAST H-mode database and the details of calculation of the thermal energy confinement time in EAST are presented. The result of the scaling model τ_(E,EASTS,H,NBI-LHW) of the thermal energy confinement time in NBI-LHW plasmas with root-mean-square-error RMSE=5.5%, compared with the multi-machine scaling model τ_(th,98y2) derived from the multi-machine database (mainly NBI heating) with RMSE=12.9%, is obtained. The scaling τ_(E,EAST,H,NBI-LHW) presents a similar dependency on plasma current and power loss and a lower dependency on plasma density and elongation, but stronger dependency on toroidal field on the contrary to the positive dependency in τ_(th,98y2). The scaling τ_(E,EAST,H,ECRH-LHW) demonstrates a similar dependency on power loss and plasma current and lower dependency on plasma density, but a negative dependency with large error bars on elongation compared with τ_(E,EAST,H,NBI-LHW) in NBI-LHW plasmas. The comparison of EAST models with the latest model ITPA20-IL shows a similar engineering dependency on plasma current, power loss and plasma density, but opposite dependency on toroidal field. |
| Related Links | https://iopscience.iop.org/article/10.1088/1741-4326/acb15f/pdf |
| ISSN | 00295515 |
| e-ISSN | 17414326 |
| DOI | 10.1088/1741-4326/acb15f |
| Journal | Nuclear Fusion |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2023-01-09 |
| Access Restriction | Open |
| Subject Keyword | Journal: Nuclear Fusion Nbi Lhw Lhw Plasmas |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nuclear and High Energy Physics Condensed Matter Physics |
