Validation of prediction capability of operating space for plasma initiation in MAST-U
文献类型：期刊论文
| 作者 | Kim, Hyun-Tae2; Jaulmes, Fabien3; El-Haroun, Hana2; Cunningham, Geof2; Vincent, Charles2; Kogan, Lucy2; Scannell, Rory2; Elmore, Sarah2; Casson, Francis2; Henderson, Stuart2 |
| 刊名 | NUCLEAR FUSION
 |
| 出版日期 | 2024-12-01 |
| 卷号 | 64 |
| 关键词 | DYON plasma initiation MAST-U plasma breakdown plasma burn-through operation space |
| ISSN号 | 0029-5515 |
| DOI | 10.1088/1741-4326/ad7a8c |
| 通讯作者 | Kim, Hyun-Tae(Hyun-Tae.Kim@ukaea.uk) |
| 英文摘要 | DYON is a plasma initiation modelling code that solves the differential equation system of the full circuit equations (plasma current, active coil currents and eddy currents in full passive structures) and 0D global energy and particle balance equations (Kim 2022 Nucl. Fusion 62 126012). In order to test the capability of the full electromagnetic plasma initiation model to predict individual discharges in experiments and thus the operating space in the device, a dedicated experimental database was built in MAST-U by scanning the prefilled gas pressure p0 and the induced loop voltage Vloop. In the experimental operating space of p0 and Vloop the lower and the upper limits of p0 are determined by the plasma breakdown failure and the plasma burn-through failure, respectively. The lower limit of Vloop is determined by the plasma burn-through failure. By directly reading the control room data used in each discharge (i.e. currents in the solenoid, poloidal field coils, and toroidal field coils, p0, and gas puffing rate), the full electromagnetic DYON consistently predicted the failed breakdown, failed burn-through, and successful plasma initiation discharges in the experimental database, demonstrating its capability to predict the operating space for inductive plasma initiation. The Paschen curve calculated with the effective connection length in MAST-U indicates a much higher p0 required for plasma breakdown than the experimental data, indicating that individual field line evaluation is necessary to calculate the quantitative requirements for Townsend breakdown. The demonstration in this paper shows that the full electromagnetic DYON could be a useful simulation tool to assess the feasibility of inductive plasma initiation and to optimise operating scenarios in future devices. |
| WOS关键词 | START-UP ; PERFORMANCE |
| 资助项目 | European Union[101052200-EUROfusion] ; EPSRC[EP/W006839/1] ; U.S. Department of Energy Award[DE-AC05-00OR22725] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001321684500001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | European Union ; EPSRC ; U.S. Department of Energy Award |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/135598]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Kim, Hyun-Tae |
| 作者单位 | 1.Seoul Natl Univ, Dept Nucl Engn, Seoul, South Korea 2.UKAEA, Abingdon, England 3.CAS, Inst Plasma Phys, Za Slovankou 1782 3, Prague 8, Czech Republic 4.CEA, IRFM, F-13108 St Paul Les Durance, France 5.Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA 6.Korea Inst Fus Energy, Daejeon, South Korea 7.Chinese Acad Sci, Inst Plasma Phys, Hefei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kim, Hyun-Tae,Jaulmes, Fabien,El-Haroun, Hana,et al. Validation of prediction capability of operating space for plasma initiation in MAST-U[J]. NUCLEAR FUSION,2024,64. |
| APA | Kim, Hyun-Tae.,Jaulmes, Fabien.,El-Haroun, Hana.,Cunningham, Geof.,Vincent, Charles.,...&Chen, Runze.(2024).Validation of prediction capability of operating space for plasma initiation in MAST-U.NUCLEAR FUSION,64. |
| MLA | Kim, Hyun-Tae,et al."Validation of prediction capability of operating space for plasma initiation in MAST-U".NUCLEAR FUSION 64(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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