Runaway electrons generated during spontaneous disruptions in the EAST tokamak

• DOI: 10.1088/1741-4326/aa7c9d
• Publication Date: 2017-06-29T15:16:21Z
• Authors: R.J. Zhou; L.Q. Hu; Y. Zhang; G.Q. Zhong; S.Y. Lin
• Keywords: Thermal Runaway

The runaway electrons produced during spontaneous disruptions were studied when lower hybrid wave heating was used in the EAST tokamak. Up to of pre-disruptive plasma current can be transferred seed fast exist plasma. evolutions radial profile electric field and electron density are obtained with aid an one-dimensional self-consistent simulation model. results clearly show competition between diffusion induced growth current. They also indicate that dominant generation mechanism Dreicer type, half decreasing magnetic energy converted into kinetic disruptions.