Zobrazeno 1 - 10
of 156
pro vyhledávání: '"van Milligen B Ph"'
Autor:
Gerrú, R., Mulas, S., Losada, U., Castejón, F., Liu, B., Estrada, T., van Milligen, B Ph, Hidalgo, C.
This study presents the investigation of the connection between radial electric field, gradient of Reynolds stress and Long Range Correlation (LRC), as a proxy for Zonal Flows (ZF), in different plasma scenarios in the TJ-II stellarator. Monte Carlo
Externí odkaz:
http://arxiv.org/abs/1904.04864
Publikováno v:
Nucl. Fusion 58 (2018) 076002
The understanding of the outward radial transport of heat in magnetic confinement fusion devices is a priority for the development of economically viable fusion reactors. Here, we analyze the radial propagation of spontaneously generated electron tem
Externí odkaz:
http://arxiv.org/abs/1708.02295
Autor:
van Milligen, B. Ph., Nicolau, J. H., García, L., Carreras, B. A., Hidalgo, C., Team, the TJ-II
Publikováno v:
Nucl. Fusion 57, 5 (2017) 056028
In this work, we study the outward propagation of temperature perturbations. For this purpose, we apply an advanced analysis technique, the Transfer Entropy, to ECE measurements performed in ECR heated discharges at the low-shear stellarator TJ-II. W
Externí odkaz:
http://arxiv.org/abs/1701.04574
Autor:
Velasco, J. L., Calvo, I., Satake, S., Alonso, A., Nunami, M., Yokoyama, M., Sato, M., Estrada, T., Fontdecaba, J. M., Liniers, M., McCarthy, K. J., Medina, F., Van Milligen, B. Ph, Ochando, M., Parra, F., Sugama, H., Zhezhera, A., team, the LHD experimental, team, the TJ-II
Publikováno v:
Nuclear Fusion 57, 016016 (2017)
Achieving impurity and helium ash control is a crucial issue in the path towards fusion-grade magnetic confinement devices, and this is particularly the case of helical reactors, whose low-collisionality ion-root operation scenarios usually display a
Externí odkaz:
http://arxiv.org/abs/1607.07739
Autor:
Alonso, J A, Velasco, J L, Calvo, I, Estrada, T, Fontdecaba, J M, García-Regaña, J M, Geiger, J, Landreman, M, McCarthy, K J, Medina, F, Van Milligen, B Ph, Ochando, M A, Parra, F I, Team, the TJ-II, Team, the W7-X
Publikováno v:
2016 Plasma Phys. Control. Fusion 58 074009
We review in a tutorial fashion some of the causes of impurity density variations along field lines and radial impurity transport in the moment approach framework. An explicit and compact form of the parallel inertia force valid for arbitrary toroida
Externí odkaz:
http://arxiv.org/abs/1604.05914
Autor:
Velasco, J. L., McCarthy, K. J., Panadero, N., Satake, S., López-Bruna, D., Alonso, A., Calvo, I., Estrada, T., Fontdecaba, J. M., Hernández, J., García, R., Medina, F., Ochando, M., Pastor, I., Perfilov, S., Sánchez, E., Soleto, A., Van Milligen, B. Ph., Zhezhera, A., team, the TJ-II
Publikováno v:
Plasma Physics and Controlled Fusion 58, 084004 (2016)
We study radial particle transport in stellarator plasmas using cryogenic pellet injection. By means of perturbative experiments, we estimate the experimental particle flux and compare it with neoclassical simulations. Experimental evidence is obtain
Externí odkaz:
http://arxiv.org/abs/1601.08153
Autor:
van Milligen, B. Ph., Estrada, T., Carreras, B. A., Ascasíbar, E., Hidalgo, C., Pastor, I., Fontdecaba, J. M., Balbín, R., Team, the TJ-II
This work focuses on the relationship between L-H (or L-I) transitions and MHD activity in the low magnetic shear TJ-II stellarator. It is shown that the presence of a low order rational surface in the plasma edge (gradient) region lowers the thresho
Externí odkaz:
http://arxiv.org/abs/1512.06525
Autor:
van Milligen, B. Ph., Estrada, T., Garcia, L., Bruna, D. Lopez, Carreras, B. A., Xu, Y., Ochando, M., Hidalgo, C., Reynolds-Barredo, J. M., Fraguas, A. Lopez
Publikováno v:
Nucl. Fusion, 56, 1 (2016) 016013
This work explores the relation between magnetic islands, long range temporal correlations and heat transport. A low order rational surface ($\iota/2\pi = 3/2$) was purposely scanned outward through an Electron Cyclotron Resonance Heated (ECRH) plasm
Externí odkaz:
http://arxiv.org/abs/1506.06890
Autor:
van Milligen, B. Ph., Bons, P. D.
The dispersion of solute in porous media shows a non-linear increase in the transition from diffusion to advection dominated dispersion as the flow velocity is raised. In the past, the behavior in this intermediate regime has been explained with a va
Externí odkaz:
http://arxiv.org/abs/1409.2724
Autor:
van Milligen, B. Ph., Sánchez, E., Alonso, A., Pedrosa, M. A., Hidalgo, C., de Aguilera, A. Martín, Fraguas, A. López
Publikováno v:
Plasma Phys. Control. Fusion 57 (2015) 025005
This work addresses the identification of zonal flows in fusion plasmas. Zonal flows are large scale phenomena, hence multipoint measurements taken at remote locations are required for their identification. Given such data, the Biorthogonal Decomposi
Externí odkaz:
http://arxiv.org/abs/1408.1845