@inproceedings{5c7f0d3ff38344df81bea1af68729876,
title = "Effect of collisional heat transfer in ICRF power modulation experiment on ASDEX Upgrade",
abstract = "ICRF (ion cyclotron range of frequencies) heating experiments were performed in D-H plasmas at various H concentrations on ASDEX Upgrade. The rf power was modulated to measure the electron power deposition profile from electron temperature modulation. To minimize the contribution from indirect collisional heating and the effect of radial transport, the rf power was modulated at 50 Hz. However, peaking of electron temperature modulation was still observed around the hydrogen cyclotron resonance indicating collisional heating contribution. Time dependent simulation of the hydrogen distribution function was performed for the discharges, using the full-wave code AORSA (E.F. Jaeger, et al., Phys. Plasmas, Vol. 8, page 1573 (2001)) coupled to the Fokker-Planck code CQL3D (R.W. Harvey, et al., Proc. IAEA (1992)). In the present experimental conditions, it was found that modulation of the collisional heating was comparable to that of direct wave damping. Impact of radial transport was also analyzed and found to appreciably smear out the modulation profile and reduce the phase delay.",
author = "N. Tsujii and R. D'Inca and Noterdaeme, \{J. M.\} and R. Bilato and Bobkov, \{V. V.\} and M. Brambilla and \{Van Eester\}, D. and Harvey, \{R. W.\} and Jaeger, \{E. F.\} and Lerche, \{E. A.\} and P. Schneider",
year = "2014",
doi = "10.1063/1.4864532",
language = "English",
isbn = "9780735412101",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics Inc.",
pages = "239--242",
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",
}