RT Dissertation/Thesis
T1 Studies on electromagnetic turbulence and edge phenomena in fusion plasmas
A1 Martín de Aguilera Moreno, Adriana
AB The magnetic well depth if one of the principal actors when the stability of a confinedplasma is analysed. It is the main stabilising mechanism in the TJ-II stellarator, asthis is an almost shearless device. This and TJ-II's ability for changing the currentsof its coils make the Spanish stellarator a perfect candidate for magnetic well studies.This thesis presents an exhaustive study on plasma performance and stability undertheoretically unstable magnetic well conditions. NBI-heated reproducible plasmas weresuccessfully produced even for the most stability adverse conditions and a link between the Alfén Eigenmodes and magnetic well depth was found.Visible light emission at the plasma edge of the JET tokamak has been studied with anintensified fast visible camera since the installation of its ITER-Like Wall. A methodto characterize the evolution of ELMs in the divertor and relate the recorded signalwith other diagnostics at JET has been developed. A large Matlab library orientated totreat and share the data produced by the intensified fast visible camera has been madeavailable to the users of this diagnostic.
YR 2017
FD 2017-02
LK https://hdl.handle.net/10016/24978
UL https://hdl.handle.net/10016/24978
LA eng
DS e-Archivo
RD 27 jun. 2024