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Ramasamy, R.; Hoelzl, M.; Strumberger, E.; Lackner, K.; Günter, S.: Nonlinear MHD simulations of external kinks in quasi-axisymmetric stellarators using an axisymmetric external rotational transform approximation. Nuclear Fusion 61, 076017 (2021)

Rath, K.; Albert, C. G.; Bischl, B.; Toussaint, U. v.: Symplectic Gaussian process regression of maps in Hamiltonian systems. Chaos 31, 053121 (2021)

Ratynskaia, S.; Thoren, E.; Tolias, P.; Pitts, R. A.; Krieger, K.; ASDEX Upgrade Team, Max Planck Institute for Plasma Physics, Max Planck Society; EUROfusion MST1 Team: The MEMOS-U macroscopic melt dynamics code – benchmarking and applications. Physica Scripta 96, 124009 (2021)

Raumann, L.; Coenen, J. W.; Riesch, J.; Mao, Y.; Schwalenberg, D.; Gietl, H.; Linsmeier, C.; Guillon, O.: Improving the W Coating Uniformity by a COMSOL Model-Based CVD Parameter Study for Denser W_f/W Composites. Metals 11 (7), 1089 (2021)

Raumann, L.; Coenen, J. W.; Riesch, J.; Mao, Y.; Schwalenberg, D.; Wegener, T.; Gietl, H.; Höschen, T.; Linsmeier, C.; Guillon, O.: Modeling and experimental validation of a W_f/W-fabrication by chemical vapor deposition and infiltration. Nuclear Materials and Energy 28, 101048 (2021)

Ravensbergen, T.; Berkel, M. v.; Perek, A.; Galperti, C.; Duval, B. P.; Fevrier, O.; Kampen, R. J. R. v.; Felici, F.; Lammers, J. T.; Theiler, C. et al.; Schoukens, J.; Linehan, B.; Komm, M.; Henderson, S.; Brida, D.; Baar, M. R. d.: Real-time feedback control of the impurity emission front in tokamak divertor plasmas. Nature Communications 12, 1105 (2021)

Redl, A.; Angioni, C.; Belli, E.; Sauter, O.; ASDEX Upgrade Team, Max Planck Institute for Plasma Physics, Max Planck Society; EUROfusion MST1 Team: A new set of analytical formulae for the computation of the bootstrap current and the neoclassical conductivity in tokamaks. Physics of Plasmas 28, 022502 (2021)

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Reux, C.; Paz-Soldan, C.; Aleynikov, P.; Bandaru, V.; Ficker, O.; Silburn, S.; Hoelzl, M.; Jachmich, S.; Eidietis, N.; Lehnen, M. et al.; Sridhar, S.; JET Contributors: Demonstration of Safe Termination of Megaampere Relativistic Electron Beams in Tokamaks. Physical Review Letters 126, 175001 (2021)

Richou, M.; Missirlian, M.; Firdaouss, M.; Böswirth, B.; Diez, M.; Greuner, H.; Hatchressian, J.-C.; Pérot, N.; Ramaniraka, M.; Roche, H. et al.; WEST Team: Acceptance tests of the industrial series manufacturing of WEST ITER-like tungsten actively cooled divertor. Physica Scripta 96, 124029 (2021)

Roberg-Clark, G. T.; Plunk, G.; Xanthopoulos, P.: Calculating the linear critical gradient for the ion-temperature-gradient mode in magnetically confined plasmas. Journal of Plasma Physics 87 (3), 905870306 (2021)

Roessel, A. v.; Toussaint, U. v.; Manhard, A.: Convolutional neural networks for the in-situ investigation of blistering on plasma-exposed metal surfaces. Nuclear Materials and Energy 29, 101082 (2021)

Rohde, V.; Balden, M.; Neu, R.; ASDEX Upgrade Team, Max Planck Institute for Plasma Physics, Max Planck Society: Arc behaviour on different materials in ASDEX Upgrade. Nuclear Materials and Energy 29, 101083 (2021)

Rozhansky, V.; Kaveeva, E.; Senichenkov, I.; Sorokina, D.; Vekshina, E.; Coster, D.; McCarthy, P.; Khromov, N.: Current structure in the scrape-off layer of a tokamak in a quiescent state. Plasma Physics and Controlled Fusion 63, 015012 (2021)

Rozhansky, V.; Kaveeva, E.; Senichenkov, I.; Veselova, I.; Voskoboynikov, S.; Pitts, R. A.; Coster, D.; Giroud, C.; Wiesen, S.: Multi-machine SOLPS-ITER comparison of impurity seeded H-mode radiative divertor regimes with metal walls. Nuclear Fusion 61, 126073 (2021)

Rubino, G.; Calabro, G.; Wischmeier, M.: Assessment of Scrape-Off Layer and divertor plasma conditions in JT-60SA with tungsten wall and nitrogen injection. Nuclear Materials and Energy 26, 100895 (2021)

Rueda-Ramirez, A. M.; Hennemann, S.; Hindenlang, F. J.; Winters, A. R.; Gassner, G. J.: An entropy stable nodal discontinuous Galerkin method for the resistive MHD equations. Part II: Subcell finite volume shock capturing. Journal of Computational Physics 444, 110580 (2021)

Rueda-Rueda, J.; Garcia-Munoz, M.; Viezzer, E.; Schneider, P. A.; Garcia-Domínguez, J.; Ayllon-Guerola, J.; Galdon-Quiroga, J.; Herrmann, A.; Du, X. D.; Van Zeeland, M. A. et al.; Oyola, P.; Rodriguez-Ramos, M.; ASDEX Upgrade Team, Max Planck Institute for Plasma Physics, Max Planck Society: Design and simulation of an imaging neutral particle analyzer for the ASDEX Upgrade tokamak. Review of Scientific Instruments 92, 043554 (2021)

Runov, A.; Aleynikov, P.; Arnold, A. M.; Breizman, B. N.; Helander, P.: Modelling of parallel dynamics of a pellet-produced plasmoid. Journal of Plasma Physics 87 (4), 905870407 (2021)