Zobrazeno 1 - 10
of 1 119
pro vyhledávání: '"Porkolab M"'
Autor:
Tinguely, R. A., Puglia, P. G., Dowson, S., Porkolab, M., Douai, D., Fasoli, A., Frassinetti, L., King, D., Schneider, P., Contributors, JET
While much about Alfven eigenmode (AE) stability has been explored in previous and current tokamaks, open questions remain for future burning plasma experiments, especially regarding exact stability threshold conditions and related isotope effects; t
Externí odkaz:
http://arxiv.org/abs/2405.17752
Autor:
Pinsker R.I., Chen X., Lohr J.M., Moeller C.P., Porkolab M., Brookman M.W., Petty C.C., Wukitch S.J., Wallace G.M., Buttery R.J.
Publikováno v:
EPJ Web of Conferences, Vol 203, p 02008 (2019)
The establishment of reactor-relevant radiofrequency heating and current drive techniques is a focus of work on DIII-D in the next five-year period. This paper gives an overview of the planned experimental work in the areas of (1) nearly vertically l
Externí odkaz:
https://doaj.org/article/eefc7c60d02d42f4849197ddd5955c07
Autor:
Tinguely, R. A., Gonzalez-Martin, J., Puglia, P. G., Fil, N., Dowson, S., Porkolab, M., Kumar, I., Podestà, M., Baruzzo, M., Fasoli, A., Kazakov, Ye. O., Nave, M. F. F., Nocente, M., Ongena, J., Štancar, Ž., Contributors, JET
In this paper, we report the novel experimental observation of both unstable and stable Toroidicity-induced Alfv\'en Eigenmodes (TAEs) measured simultaneously in a JET tokamak plasma. The three-ion-heating scheme (D-DNBI-3He) is employed to accelerat
Externí odkaz:
http://arxiv.org/abs/2208.05052
Publikováno v:
EPJ Web of Conferences, Vol 157, p 03030 (2017)
In recent three-ion species (majority D and H plus a trace level of 3He) ICRF heating experiments on Alcator C-Mod, double mode conversion on both sides of the 3He cyclotron resonance has been observed using the phase contrast imaging (PCI) system. T
Externí odkaz:
https://doaj.org/article/e623d7985adc4835a82699ec27f2e469
Autor:
Porkolab M., Pinsker R.I.
Publikováno v:
EPJ Web of Conferences, Vol 157, p 03042 (2017)
High power helicon (whistler) waves at a frequency of 0.47 GHz are being considered for efficient off-axis current generation in high performance DIII-D plasmas and in K-Star [3]. The need for deploying helicon waves for current profile control has b
Externí odkaz:
https://doaj.org/article/cd8cc37263774966858c789cabe4d51e
Autor:
Tinguely, R. A., Fil, N., Puglia, P. G., Dowson, S., Porkolab, M., Guillemot, V., Podestà, M., Baruzzo, M., Dumont, R., Fasoli, A., Fitzgerald, M., Kazakov, Ye. O., Nave, M. F. F., Nocente, M., Ongena, J., Sharapov, S. E., Štancar, Ž., Contributors, JET
The interaction of Alfv\'{e}n Eigenmodes (AEs) and energetic particles is one of many important factors determining the success of future tokamaks. In JET, eight in-vessel antennas were installed to actively probe stable AEs with frequencies ranging
Externí odkaz:
http://arxiv.org/abs/2111.13569
Autor:
Pinsker R.I., Austin M.E., Ernst D.R., Garofalo A.M., Grierson B.A., Hosea J.C., Luce T.C., Marinoni A., McKee G.R., Perkins R.J., Petty C.C., Porkolab M., Rost J.C., Schmitz L., Solomon W.M., Taylor G., Turco F.
Publikováno v:
EPJ Web of Conferences, Vol 87, p 02003 (2015)
Recent DIII-D experiments in the ITER Baseline Scenario (IBS) have shown strong increases in fluctuations and correlated reduction of confinement associated with entering the electron-heating-dominated regime with strong electron cyclotron heating (E
Externí odkaz:
https://doaj.org/article/2992a4d4d4d54fb5b5835cbc8b62a658
Autor:
Sung C., White A. E., Howard N. T., Mikkelsen D., Irby J., Leccacorvi R., Vieira R., Oi C., Rice J., Reinke M., Gao C., Ennever P., Porkolab M., Churchill R., Theiler C., Walk J., Hughes J., Hubbard A., Greenwald M.
Publikováno v:
EPJ Web of Conferences, Vol 87, p 03007 (2015)
Correlation ECE (CECE) is a diagnostic technique that allows measurement of small amplitude electron temperature, Te, fluctuations through standard cross-correlation analysis methods. In Alcator C-Mod, a new CECE diagnostic has been installed[Sung RS
Externí odkaz:
https://doaj.org/article/6f806c3c74f3464cabcecbf717cd50bc
Autor:
Tinguely, R. A., Puglia, P. G., Fil, N., Dowson, S., Porkolab, M., Dvornova, A., Fasoli, A., Fitzgerald, M., Guillemot, V., Huysmans, G. T. A., Maslov, M., Sharapov, S., Testa, D., Contributors, JET
This paper presents a dedicated study of plasma-antenna (PA) coupling with the Alfven Eigenmode Active Diagnostic (AEAD) in JET. Stable AEs and their resonant frequencies f, damping rates $\gamma$ < 0, and toroidal mode numbers n are measured for var
Externí odkaz:
http://arxiv.org/abs/2011.02768
Autor:
Stechow, A. v., Grulke, O., Wegner, Th., Proll, J. H. E., Alcusón, J. A., Smith, H. M., Baldzuhn, J., Beidler, C. D., Beurskens, M. N. A., Bozhenkov, S. A., Edlund, E., Geiger, B., Huang, Z., Ford, O. P., Fuchert, G., Langenberg, A., Pablant, N., Pasch, E., Porkolab, M., Rahbarnia, K., Schilling, J., Scott, E. R., Thomsen, H., Vanó, L., Weir, G., Team, The W7-X
In the Wendelstein 7-X magnetic confinement experiment, a reduction of turbulent density fluctuations as well as anomalous impurity diffusion is associated with a peaking of the plasma density profile. These effects correlate with improved confinemen
Externí odkaz:
http://arxiv.org/abs/2010.02160