@inproceedings{08f8c52878c041719be45a6479a7c939,
title = "Fast wave current drive in DEMO",
abstract = "The ability to non-inductively drive a large fraction of the toroidal plasma current in magnetically confined plasmas is an essential requirement for steady state fusion reactors such as DEMO. Besides neutral beam injection (NBI), electron-cyclotron resonance heating (ECRH) and lower hybrid wave heating (LH), ion-cyclotron resonance heating (ICRH) is a promising candidate to drive current, in particular at the high temperatures expected in fusion plasmas. In this paper, the current drive (CD) efficiencies calculated with coupled ICRF wave / CD numerical codes for the DEMO-1 design case (R0=9m, B 0=6.8T, ap=2.25m) [1] are presented. It will be shown that although promising CD efficiencies can be obtained in the usual ICRF frequency domain (20-100MHz) by shifting the dominant ion-cyclotron absorption layers to the high-field side, operation at higher frequencies (100-300MHz) has a stronger CD potential, provided the parasitic RF power absorption of the alpha particles can be minimized.",
keywords = "DEMO, ICRF, current-drive, tokamak",
author = "Ernesto Lerche and {Van Eester}, Dirk and A. Messiaen and T. Franke",
year = "2014",
doi = "10.1063/1.4864557",
language = "English",
isbn = "9780735412101",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics Inc.",
pages = "338--341",
booktitle = "Radiofrequency Power in Plasmas - Proceedings of the 20th Topical Conference",
note = "20th Topical Conference on Radiofrequency Power in Plasmas ; Conference date: 25-06-2013 Through 28-06-2013",
}