Description
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A multi-device database of disruption characteristics has been developed under the auspices of the International Tokamak Physics Activity magneto-hydrodynamics topical group. The purpose of this ITPA disruption database (IDDB) is to find the commonalities between the disruption and disruption mitigation characteristics in a wide variety of tokamaks in order to elucidate the physics underlying tokamak disruptions and to extrapolate toward much larger devices, such as ITER and future burning plasma devices. In contrast to previous smaller disruption data collation efforts, the IDDB aims to provide significant context for each shot provided, allowing exploration of a wide array of relationships between pre-disruption and disruption parameters. The IDDB presently includes contributions from nine tokamaks, including both conventional aspect ratio and spherical tokamaks. An initial parametric analysis of the available data is presented. This analysis includes current quench rates, halo current fraction and peaking, and the effectiveness of massive impurity injection. The IDDB is publicly available, with instruction for access provided herein.
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Notes
| PSFC REPORT PSFC/JA-15-91
This material is based upon work supported in part by the U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences, using the DIII-D National Fusion Facility, a DOE Office of Science user facility, under awards DE-FC02-04ER54698, DE-FC02-99ER54512-CMOD, DEAC0209CH11466, the Department of Atomic Energy (DAE), Government of India, the JT-60 project of Japan Atomic Energy Agency, the Fonds National Suisse de la Recherche Scientifique, the RCUK Energy Programme (grant number EP/I501045), and by the European Union's Horizon 2020 research and innovation programme. DIII-D data shown in this paper can be obtained in digital format by following the links at https://fusion.gat.com/global/D3D_DMP. The authors gratefully acknowledge the substantial effort and insight of J.C. Wesley in initiating and overseeing the early development of the IDDB, in addition to the scientific and operational teams at ADITYA, Alcator C-Mod, ASDEX Upgrade, DIII-D, JET, JT-60U, MAST, NSTX, and TCV for their assistance in obtaining and analysing the data presented herein. The International Tokamak Physics Activity now operates under the auspices of ITER International Organization. Views and opinions expressed herein do not necessarily reflect those of the ITER Organization or the European Commission. |