Killer, C.; Narbutt, Y.; Grulke, O.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Turbulent transport in the scrape-off layer of Wendelstein 7-X. Nuclear Fusion 61, 096038 (2021)

Kirov, K. K.; Belonohy, E.; Challis, C. D.; Eriksson, J.; Frigione, D.; Garzotti, L.; Giacomelli, L.; Hobirk, J.; Kappatou, A.; Keeling, D. et al.; King, D.; Lerche, E.; Lomas, P. J.; Nocente, M.; Reux, C.; Rimini, F. G.; Sips, A. C. C.; Van Eester, D.; JET Contributors: Analysis of the fusion performance, beam-target neutrons and synergistic effects of JET's high-performance pulses. Nuclear Fusion 61, 046017 (2021)

Kleiber, R.; Borchardt, M.; Könies, A.; Slaby, C.: Modern methods of signal processing applied to gyrokinetic simulations. Plasma Physics and Controlled Fusion 63, 035017 (2021)

Kobayashi, S.; Nagasaki, K.; Hada, K.; Stange, T.; Okada, H.; Minami, T.; Kado, S.; Ohshima, S.; Tokuhara, K.; Nakamura, Y. et al.; Ishizawa, A.; Suzuki, Y.; Osakabe, M.; Murase, T.; Konoshima, S.; Mizuuchi, T.: Role of pre-ionization in NBI plasma start-up of Heliotron J using non-resonant microwave heating. Nuclear Fusion 61, 116009 (2021)

Kobayashi, T.; Nishizawa, T.; Sasaki, M.; Yoshinuma, M.; Ida, K.: Method for estimating the frequency-wavenumber resolved power spectrum density using the maximum entropy method for limited spatial points. Plasma Physics and Controlled Fusion 63, 045011 (2021)

Kocsis, G.; Tamura, N.; Bussiahn, R.; McCarthy, K.J.; Baldzuhn, J.; Biedermann, C.; Cseh, G.; Damm, H.; Kornejew, P.; König, R. et al.; Panadero, N.; Szepesi, T.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Investigation of TESPEL cloud dynamics in Wendelstein 7-X stellarator. Nuclear Fusion 61, 016006 (2021)

Koleva, M.; Tardini, G.; Zohm, H.; Äkäslompolo, S.; Leppänen, J.; ASDEX Upgrade Team, Max Planck Institute for Plasma Physics, Max Planck Society: Calibration of neutron detectors at ASDEX Upgrade, measurement and model. Fusion Engineering and Design 167, 112702 (2021)

Komm, M.; Mancini, D.; Morbey, M.; Cavalier, J.; Adamek, J.; Bernert, M.; Bilkova, P.; Bohm, P.; Brida, D.; Fevrier, O. et al.; Henderson, S.; Hron, M.; Jerab, M.; Imrisek, M.; Kripner, L.; Naydenkova, D.; Panek, R.; Sos, M.; Vondracek, P.; EUROfusion MST1 Team: Power exhaust by core radiation at COMPASS tokamak. Nuclear Fusion 61, 036016 (2021)

Kontula, J.; Koschinsky, J. P.; Äkäslompolo, S.; Kurki-Suonio, T.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: ASCOT simulations of 14 MeV neutron rates in W7-X: effect of magnetic configuration. Plasma Physics and Controlled Fusion 63, 035022 (2021)

Kormann, K.; Sonnendrücker, E.: Energy-conserving time propagation for a structure-preserving particle-in-cell Vlasov–Maxwell solver. Journal of Computational Physics 425, 109890 (2021)

Kormann, K.; Yurova, A.: A generalized Fourier-Hermite method for the Vlasov-Poisson system. BIT Numerical Mathematics 61, pp. 881 - 909 (2021)

Kovtun, Y.; Wauters, T.; Goriaev, A.; Möller, S.; Lopez-Rodriguez, D.; Crombe, K.; Brezinsek, S.; Dinklage, A.; Nicolai, D.; Linsmeier, C. et al.; Van Schoor, M.; Buermans, J.; Moon, S.; Ragona, R.; Petersson, P.: Comparative analysis of the plasma parameters of ECR and combined ECR + RF discharges in the TOMAS plasma facility. Plasma Physics and Controlled Fusion 63, 125023 (2021)

Krais, N.; Beck, A.; Bolemann, T.; Frank, H.; Flad, D.; Gassner, G.; Hindenlang, F.; Hoffmann, M.; Kuhn, T.; Sonntag, M. et al.; Munz, C.-D.: FLEXI: A high order discontinuous Galerkin framework for hyperbolic-parabolic conservation laws. Computers and Mathematics with Applications 81 (11), pp. 186 - 219 (2021)

Krat, S.; Mayer, M.; Coad, J. P.; Lungu, C. P.; Heinola, K.; Baron-Wiechec, A.; Jepu, I.; Widdowson, A.; JET Contributors: Comparison of JET inner wall erosion in the first three ITER-like wall campaigns. Nuclear Materials and Energy 29, 101072 (2021)

Kraus, M.; Tyranowski, T.: Variational integrators for stochastic dissipative Hamiltonian systems. IMA Journal of Numerical Analysis 41 (2), pp. 1318 - 1367 (2021)

Kremer, K.; Schwarz-Selinger, T.; Jacob, W.: Influence of thin tungsten oxide films on hydrogen isotope uptake and retention in tungsten – Evidence for permeation barrier effect. Nuclear Materials and Energy 27, 100991 (2021)

Kudlacek, O.; Bosman, T.; Felici, F.; Giannone, L.; van Mulders, S.; Sauter, O.; Sieglin, B.; Treutterer, W.; Vu, N. M. T.; Weiland, M. et al.; Angioni, C.; Bilato, R.; Bonanomi, N.; Gomez Ortiz, I.; Gräter, A.; Fischer, R.; Kong, M.; Maceina, T.; Zehetbauer, T.; ASDEX Upgrade Team, Max Planck Institute for Plasma Physics, Max Planck Society: Developments on actuator management, plasma state reconstruction, and control on ASDEX Upgrade. Fusion Engineering and Design 171, 112563 (2021)

Kurzan, B.; Lohs, A.; Sellmair, G.; Sochor, M.; ASDEX Upgrade Team, Max Planck Institute for Plasma Physics, Max Planck Society: Design and first measurements of the divertor Thomson scattering system on the ASDEX Upgrade tokamak. Journal of Instrumentation 16, C09012 (2021)

Kwak, S.; Hergenhahn, U.; Höfel, U.; Krychowiak, M.; Pavone, A.; Svensson, J.; Ford, O.; König, R.; Bozhenkov, S.; Fuchert, G. et al.; Pasch, E.; Brunner, K. J.; Knauer, J.; Kornejew, P.; Trimino Mora, H.; Pedersen, T. S.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Bayesian inference of spatially resolved Z_eff profiles from line integrated bremsstrahlung spectra. Review of Scientific Instruments 92, 043505 (2021)

Lang, P. T.; Baylor, L. R.; Craciunescu, T.; Gebhart, T. E.; Meitner, S. J.; Ploeckl, B.; ASDEX Upgrade Team, Max Planck Institute for Plasma Physics, Max Planck Society: Developing fuel sources for a steady-state multi-purpose pellet launching system. Fusion Engineering and Design 166, 112273 (2021)