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 | |
Drenik, A.279,280; Brezinsek, S.281; Carvalho, P.282; Huber, V.281; Osterman, N.280; Matthews, G. F.283; Nemec, M.284; Litaudon, X.320; Abduallev, S.324; Abhangi, M.331 | |
刊名 | FUSION ENGINEERING AND DESIGN ; FUSION ENGINEERING AND DESIGN |
2019-02-01 ; 2019-02-01 | |
卷号 | 139期号:无页码:115-123 |
关键词 | JET ITER-like wall Plasma-wall interaction Image analysis JET ITER-like wall Plasma-wall interaction Image analysis |
ISSN号 | 0920-3796 ; 0920-3796 |
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 ; 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 ; 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 |
内容类型 | 期刊论文 |
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.Univ Roma Tor Vergata, Via Politecn 1, Rome, Italy 2.Univ Politecn Madrid, Grp I2A2, Madrid, Spain 3.Univ Nacl Educ Distancia, Madrid, Spain 4.Univ Seville, Seville, Spain 5.NCSR Demokritos, Aghia Paraskevi 15310, Greece 6.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 7.Consorzio RFX, Corso Stati Uniti 4, I-35127 Padua, Italy 8.Inst Plasma Phys AS CR, Slovankou 1782-3, Prague 18200 8, Czech Republic 9.Consorzio CREATE, Via Claudio 21, I-80125 Naples, Italy 10.Inst Plasma Phys & Laser Microfus, Hery 23, PL-01497 Warsaw, Poland |
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. |
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