Publications

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2020
K. George, T. Khachatrjan, M. van Berkel, V. Sinha, A. Bieberle,  Understanding the Impact of Different Types of Surface States on Photoelectrochemical Water Oxidation: A Microkinetic Modeling Approach, ACS Catal. 10 (2020) 14649-14660.
M. van Berkel, R.JR van Kampen, G. Vandersteen, T. Kobayashi, T. Ravensbergen, H. Igami, J.T Lammers, G. Oosterwegel, C. Galperti, F. Felici et al.,  Correcting for non-periodic behaviour in perturbative experiments: application to heat pulse propagation and modulated gas-puff experiments, Plasma Phys. Control. Fusion 62 (2020) 094001.
T. Ravensbergen, M. van Berkel, S.A Silburn, J.R Harrison, A. Perek, K. Verhaegh, W.AJ Vijvers, C. Theiler, A. Kirk, M.R de Baar,  Development of a real-time algorithm for detection of the divertor detachment radiation front using multi-spectral imaging, Nucl. Fusion 60 (2020) 066017.
OA PDF icon 2020_70006.pdf (963.7 KB)
2019
W. Biel, R. Albanese, R. Ambrosino, M. Ariola, M. van Berkel, I. Bolshakova, K.J Brunner, R. Cavazzana, M. Cecconello, S. Conroy et al.,  Diagnostics for plasma control - From ITER to DEMO, Fusion Eng. Des. 146 (2019) 465-472.
OA 
H.JN van Eck, G.RA Akkermans, A S. van der Westen, D.UB Aussems, M. van Berkel, S. Brons, I.GJ Classen, H.J van der Meiden, T.W Morgan, M.J van de Pol et al.,  High-fluence and high-flux performance characteristics of the superconducting Magnum-PSI linear plasma facility, Fusion Eng. Des. 142 (2019) 26-32.
OA PDF icon 2019_69439.pdf (1.7 MB)
K. George, M. van Berkel, X.Q Zhang, R. Sinha, A. Bieberle,  Impedance Spectra and Surface Coverages Simulated Directly from the Electrochemical Reaction Mechanism: A Nonlinear State Space Approach, J. Phys. Chem. C 123 (2019) 9981-9992.
OA PDF icon 2019_69427.pdf (783.12 KB)
2018
M. van Berkel, G. Vandersteen, H.J Zwart, G.MD Hogeweij, J. Citrin, E. Westerhof, D. Peumans, M.R de Baar,  Separation of transport in slow and fast time-scales using modulated heat pulse experiments (hysteresis in flux explained), Nucl. Fusion 58 (2018) 106042.
OA 
M. van Berkel, A. De Cock, T. Ravensbergen, G.MD Hogeweij, H.J Zwart, G. Vandersteen,  A systematic approach to optimize excitations for perturbative transport experiments, Phys. Plasmas 25 (2018) 082510.
OA PDF icon 2018_68540.pdf (1.09 MB)
M. van Berkel, T. Kobayashi, G. Vandersteen, H.J Zwart, H. Igami, S. Kubo, N. Tamura, H. Tsuchiya, M.R de Baar, LHDExperiment Group,  Heat flux reconstruction and effective diffusion estimation from perturbative experiments using advanced filtering and confidence analysis, Nucl. Fusion 58 (2018) 096036.
OA PDF icon 2018_68414.pdf (835.52 KB)
2017
M. van Berkel, T. Kobayashi, H. Igami, G. Vandersteen, G.MD Hogeweij, K. Tanaka, N. Tamura, H.J Zwart, S. Kubo, S. Ito et al.,  New evidence and impact of electron transport non-linearities based on new perturbative inter-modulation analysis, Nucl. Fusion 57 (2017) 126036.
OA PDF icon 2017_67337.pdf (887.23 KB)
M. van Berkel, H.J Zwart, G.MD Hogeweij, M.R de Baar,  Technical note on the linearity and power dependence of the diffusion coefficient in W7-AS, Plasma Phys. Control. Fusion 59 (2017) 062001.
OA PDF icon 2017_66830.pdf (358.1 KB)
2016
U. Schneidewind, M. van Berkel, C. Anibas, G. Vandersteen, C. Schmidt, I. Joris, P. Seuntjens, O. Batelaan, H.J Zwart,  LPMLE3: A novel 1-D approach to study water flow in streambeds using heat as a tracer, Water Resour. Res. 52 (2016) 6596-6610.
H. van den Brand, M.R de Baar, M. van Berkel, T.C Blanken, F. Felici, E. Westerhof, M. Willensdorfer, ASDEX Upgrade Team, EUROfusion MST1 Team,  A model-based, multichannel, real-time capable sawtooth crash detector, Plasma Phys. Control. Fusion 58 (2016) 075002.
OA PDF icon 2016_64793.pdf (1022.66 KB)
2015
M. van Berkel,  Estimation of heat transport coefficients in fusion plasmas, PhD (2015) 
2014
M. van Berkel, G. Vandersteen, E. Geerardyn, R. Pintelon, H. Zwart, M. de Baar,  Frequency domain sample maximum likelihood estimation for spatially dependent parameter estimation in PDEs, Automatica 50 (2014) 2113-2119.
OA PDF icon 2014_58494.pdf (298.68 KB)
M. van Berkel, N. Tamura, G.MD Hogeweij, H.J Zwart, S. Inagaki, MR de Baar, K. Ida,  Explicit approximations to estimate the perturbative diffusivity in the presence of convectivity and damping. III. Cylindrical approximations for heat waves traveling inwards, Phys. Plasmas 21 (2014) 112509.
OA PDF icon 2014_59593.pdf (1.07 MB)
M. van Berkel, G.MD Hogeweij, N. Tamura, H.J Zwart, S. Inagaki, MR de Baar, K. Ida,  Explicit approximations to estimate the perturbative diffusivity in the presence of convectivity and damping. II. Semi-infinite cylindrical approximations, Phys. Plasmas 21 (2014) 112508.
OA PDF icon 2014_59594.pdf (964.78 KB)
M. van Berkel, H.J Zwart, N. Tamura, G.MD Hogeweij, S. Inagaki, MR de Baar, K. Ida,  Explicit approximations to estimate the perturbative diffusivity in the presence of convectivity and damping. I. Semi-infinite slab approximations, Phys. Plasmas 21 (2014) 112507.
OA PDF icon 2014_59592.pdf (1.08 MB)
M. van Berkel, H.J Zwart, G.MD Hogeweij, G. Vandersteen, H. van den Brand, MR de Baar, ASDEX Upgrade Team,  Estimation of the thermal diffusion coefficient in fusion plasmas taking frequency measurement uncertainties into account, Plasma Phys. Control. Fusion 56 (2014) 105004.
OA PDF icon 2014_58556.pdf (752.82 KB)
2013
M. van Berkel, G. Vandersteen, H. Zwart, G.MD Hogeweij, M. de Baar,  Maximum Likelihood Estimation of diffusion and convection in tokamaks using infinite domains, 2013 IEEE Multi-Conference on Systems and Control (MSC 2013)  (2013) 1230-1234.
OA PDF icon 2013_55506.pdf (522.49 KB)

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