Bibliographic Details
| Title: |
Physics of plasma burn-through and DYON simulations for the JET ITER-like wall |
| Authors: |
Kim, Hyun-Tae, Sips, A. C. C., contributors, EFDA-JET |
| Source: |
Nuclear Fusion, Vol.53, No.8, August 2013, p.083024 |
| Publication Year: |
2013 |
| Collection: |
Physics (Other) |
| Subject Terms: |
Physics - Plasma Physics |
| More Details: |
This paper presents the DYON simulations of the plasma burn-through phase at Joint European Torus (JET) with the ITER-like wall. The main purpose of the study is to validate the simulations with the ITER-like wall, made of beryllium. Without impurities, the burn-through process of a pure deuterium plasma is described using DYON simulations, and the criterion for deuterium burn-through is derived analytically. The plasma burn-through with impurities are simulated using wall-sputtering models in the DYON code, which are modified for the ITER-like wall. The wall-sputtering models and the validation against JET data are presented. The impact of the assumed plasma parameters in DYON simulations are discussed by means of parameter scans. As a result, the operation space of prefill gas pressure and toroidal electric field for plasma burn-through in JET is compared to the Townsend avalanche criterion.
Comment: 34 pages, 13 figures |
| Document Type: |
Working Paper |
| DOI: |
10.1088/0029-5515/53/8/083024 |
| Access URL: |
http://arxiv.org/abs/1309.4890 |
| Accession Number: |
edsarx.1309.4890 |
| Database: |
arXiv |
