Analysis of the outer divertor hot spot activity in the protection video camera recordings at JET
文献类型：期刊论文
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| 作者 | Drenik, A.3,4; Brezinsek, S.5; Carvalho, P.6; Huber, V.5; Osterman, N.4; Matthews, G. F.7; Nemec, M.8; Litaudon, X.43; Abduallev, S.47; Abhangi, M.54 |
| 刊名 | FUSION ENGINEERING AND DESIGN
 ; FUSION ENGINEERING AND DESIGN
|
| 出版日期 | 2019-02-01 ; 2019-02-01 |
| 卷号 | 139期号:无页码:115-123 |
| ISSN号 | 0920-3796 ; 0920-3796 |
| 关键词 | JET ITER-like wall Plasma-wall interaction Image analysis JET ITER-like wall Plasma-wall interaction Image analysis |
| DOI | 10.1016/j.fusengdes.2018.12.079 ; 10.1016/j.fusengdes.2018.12.079 |
| 英文摘要 | Hot spots on the divertor tiles at JET result in overestimation of the tile surface temperature which causes unnecessary termination of pulses. However, the appearance of hot spots can also indicate the condition of the divertor tile surfaces. To analyse the behaviour of the hot spots in the outer divertor tiles of JET, a simple image processing algorithm is developed. The algorithm isolates areas of bright pixels in the camera image and compares them to previously identified hot spots. The activity of the hot spots is then linked to values of other signals and parameters in the same time intervals. The operation of the detection algorithm was studied in a limited pulse range with high hot spot activity on the divertor tiles 5, 6 and 7. This allowed us to optimise the values of the controlling parameters. Then, the wider applicability of the method has been demonstrated by the analysis of the hot spot behaviour in a whole experimental campaign. ;Hot spots on the divertor tiles at JET result in overestimation of the tile surface temperature which causes unnecessary termination of pulses. However, the appearance of hot spots can also indicate the condition of the divertor tile surfaces. To analyse the behaviour of the hot spots in the outer divertor tiles of JET, a simple image processing algorithm is developed. The algorithm isolates areas of bright pixels in the camera image and compares them to previously identified hot spots. The activity of the hot spots is then linked to values of other signals and parameters in the same time intervals. The operation of the detection algorithm was studied in a limited pulse range with high hot spot activity on the divertor tiles 5, 6 and 7. This allowed us to optimise the values of the controlling parameters. Then, the wider applicability of the method has been demonstrated by the analysis of the hot spot behaviour in a whole experimental campaign. |
| 资助项目 | Euratom research and training programme[633053] ; Euratom research and training programme[633053] |
| WOS研究方向 | Nuclear Science & Technology ; Nuclear Science & Technology |
| 语种 | 英语 ; 英语 |
| 出版者 | ELSEVIER SCIENCE SA ; ELSEVIER SCIENCE SA |
| WOS记录号 | WOS:000458939100016 ; WOS:000458939100016 |
| 资助机构 | Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; 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Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme ; Euratom research and training programme |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/42157]  |
| 专题 | 合肥物质科学研究院_中科院等离子体物理研究所 |
| 通讯作者 | Drenik, A.; Drenik, A.; Drenik, A. |
| 作者单位 | 1.Natl Inst Optoelect, Magurele, Romania 2.Univ Cassino, Consorzio CREATE, Via Claudio 21, I-80125 Naples, Italy 3.Max Planck Inst Plasma Phys, D-85748 Garching, Germany 4.Jozef Stefan Inst, Jamoya Ul 39, SI-1000 Ljubljana, Slovenia 5.Forschungszentrum Julich, Inst Energie & Klimaforsch Plasmaphys, TEC, D-52425 Julich, Germany 6.IST, Inst Plasmas & Fusao Nucl, Av Rovisco Pais, P-1049001 Lisbon, Portugal 7.Culham Ctr Fus Energy, Abingdon OX14 3DB, Oxon, England 8.Univ Ljubljana, Fac Elect Engn, Trzaska Cesta 25, SI-1000 Ljubljana, Slovenia 9.Aalto Univ, POB 14100, FIN-00076 Aalto, Finland 10.Aix Marseille Univ, CNRS, Cent Marseille, M2P2,UMR 7340, F-13451 Marseille, France |
| 推荐引用方式 GB/T 7714 | Drenik, A.,Brezinsek, S.,Carvalho, P.,et al. Analysis of the outer divertor hot spot activity in the protection video camera recordings at JET, Analysis of the outer divertor hot spot activity in the protection video camera recordings at JET[J]. FUSION ENGINEERING AND DESIGN, FUSION ENGINEERING AND DESIGN,2019, 2019,139, 139(无):115-123, 115-123. |
| APA | Drenik, A..,Brezinsek, S..,Carvalho, P..,Huber, V..,Osterman, N..,...&Scott, S. D..(2019).Analysis of the outer divertor hot spot activity in the protection video camera recordings at JET.FUSION ENGINEERING AND DESIGN,139(无),115-123. |
| MLA | Drenik, A.,et al."Analysis of the outer divertor hot spot activity in the protection video camera recordings at JET".FUSION ENGINEERING AND DESIGN 139.无(2019):115-123. |
入库方式： OAI收割
来源：合肥物质科学研究院
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