Author: Muhammad Asif
Requested Type: Poster
Submitted: 2018-04-09 00:14:52
Co-authors: Mabruka Mohamed and Eun-jin Kim
COMSATS INSTITUTE OF INFORMATION TECHNOLOGY
Lahore, Pakistan 54000
In this paper a stepwise increase of the heating power and its influence on the L-H transition are studied. Using a function, Atanh(t/T) for the transition of input heating power for tokamak plasmas i.e. the addition of the perturbation,Atanh(t/T) , to constant power q0 is shown to promote the confinement, leading to the L-H transition at a lower value of q0, as compared to the case of constant q0 without the Atanh(t/T) perturbation. It is seen that the input heating power Q that consists of constant part q0 in addition to a function Atanh(t/T) provides the L-H transition for relatively small A and much wider range values of 1/T.