Mr
Cristian Sommariva
(CEA-Cadaracher/IRFM)
08/06/2017, 09:15
Oral
During a tokamak disruption, a large electric field is formed which can lead to the generation of a runaway electron (RE) beam. In large machines, runaway beams are sufficiently intense and energetic to represent a serious threat for operations. Therefore, the comprehension of the physics of RE and of their mitigation is of fundamental importance for future operations. Up to now, most RE...
Mr
Ola Embréus
(Chalmers University of Technology)
08/06/2017, 10:50
Oral
Full kinetic modeling of runaway dynamics is remarkably expensive computationally due to the range in scales involved, requiring simultaneous resolution of both the near-isotropic thermal electron population in the eV energy scale, as well as the strongly anisotropic runaways in the tens-of-MeV range. Because of this, a fluid description of runaway dynamics is highly desirable, where runaway...
Mr
Santosh Pandya
(Institute for Plasma Research)
08/06/2017, 13:30
Oral
There are very few methods that have the capability to provide energy-resolved measurements of Runaway Electrons. Hard X-Ray Monitor (HXRM) allows an estimation of the maximum runaway electron energy and the energy distribution function inferred from energy-resolved measurements. Implementation of HXRM system has been relatively easy on other worldwide Tokamaks. However, at ITER this will be...
