Plasmoid instability in the semi-collisional regime by Bhat, Pallavi, Gomes Loureiro, Nuno F

“…This proves that this regime of the plasmoid instability is realizable, at least at the relatively low values of the Lundquist number that are accessible to current dedicated experiments. ©2018…”
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Plasmoid instability in the semi-collisional regime by Bhat, Pallavi, Gomes Loureiro, Nuno F

“…This proves that this regime of the plasmoid instability is realizable, at least at the relatively low values of the Lundquist number that are accessible to current dedicated experiments.…”
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Multi-device studies of pedestal physics and confinement in the I-mode regime by Osborne, T., Ryter, F., Austin, M., Barrera Orte, L., Churchill, R. M., Cziegler, I., Fenstermacher, M., Fischer, R., Gerhardt, S., Groebner, R., Gohil, P., Happel, T., Loarte, A., Maingi, R., Manz, P., McDermott, R. M., McKee, G., Rhodes, T. L., Schmitz, L., Theiler, C., Viezzer, E., Walk, J. R., Wolfrum, E., Yan, Z., Hubbard, Amanda E, Hughes Jr, Jerry, Marinoni, Alessandro, Marmar, Earl S, Rice, John E, Walk Jr, John R, Whyte, Dennis G, Wolfe, Stephen M

“…This paper describes joint ITPA studies of the I-mode regime, which features an edge thermal barrier together with L-mode-like particle and impurity transport and no edge localized modes (ELMs). …”
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Nonlinear gyrokinetic simulations of the I-mode high confinement regime and comparisons with experimenta) by Mikkelsen, D. R., Edlund, E. M., Kung, C., Holland, C., Candy, J., Petty, C. C., Reinke, M. L., Theiler, C., White, Anne E., Howard, Nathaniel Thomas, Creely, Alexander James, Chilenski, Mark Alan, Greenwald, Martin J, Hubbard, Amanda E, Hughes Jr, Jerry, Marmar, Earl S, Rice, John E, Sierchio, Jennifer M., Sung, Choongki, Walk Jr, John R, Whyte, Dennis G

“…I-mode is a high confinement regime, featuring energy confinement similar to H-mode, but without enhanced particle and impurity particle confinement [D. …”
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Full wave simulations of fast wave efficiency and power losses in the scrape-off layer of tokamak plasmas in mid/high harmonic and minority heating regimes by Bertelli, N., Jaeger, E.F., Hosea, J.C., Phillips, C.K., Berry, L., Gerhardt, S.P., Green, D., LeBlanc, B., Perkins, R.J., Qin, C.M., Pinsker, R.I., Prater, R., Ryan, P.M., Taylor, G., Valeo, E.J., Wilson, J.R., Zhang, X.J., Bonoli, Paul T, Wright, John C

“…In contrast, a different behavior has been found for C-Mod and EAST, which operate in the minority heating regime.…”
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Numerical Study of Inertial Kinetic-Alfvén Turbulence by Roytershteyn, Vadim, Boldyrev, Stanislav, Delzanno, Gian Luca, Chen, Christopher H. K., Grošelj, Daniel, Gomes Loureiro, Nuno F

“…Recent observational and analytical studies suggested that a new regime of kinetic turbulence may exist in plasma environments with low electron beta (Chen & Boldyrev 2017). …”
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Enhancement of the Bootstrap Current in a Tokamak Pedestal by Catto, Peter J., Kagan, Grigory Alexandrovich

“…The prescription for inserting the modification into any existing banana regime bootstrap current expression is given.…”
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Fluctuation-induced shear flow and energy transfer in plasma interchange turbulence by Sun, C. K., Wang, X. Y., Zhou, A., Wang, X. G., Li, Bo, Ernst, Darin R

“…The nonlinear evolution of interchange turbulence shows the presence of two confinement regimes characterized by low and high E × B flow shear. …”
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Influence of tearing instability on magnetohydrodynamic turbulence by Walker, Justin, Boldyrev, Stanislav, Gomes Loureiro, Nuno F

“…The results, therefore, provide direct numerical support for the picture that a new regime of MHD turbulence can exist below λ_{c}.…”
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Fully Kinetic Large-scale Simulations of the Collisionless Magnetorotational Instability by Inchingolo, Giannandrea, Grismayer, Thomas, Gomes Loureiro, Nuno F, Fonseca, Ricardo A., Silva, Luis O.

“…The central result of this numerical analysis is the emergence of a self-induced turbulent regime in the saturation state of the collisionless MRI, which can only be captured for large enough simulation domains. …”
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Fully Kinetic Large-scale Simulations of the Collisionless Magnetorotational Instability by Inchingolo, Giannandrea, Grismayer, Thomas, Gomes Loureiro, Nuno F, Fonseca, Ricardo A., Silva, Luis O.

“…The central result of this numerical analysis is the emergence of a self-induced turbulent regime in the saturation state of the collisionless MRI, which can only be captured for large enough simulation domains. …”
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Recent Results on Coupling Fast Waves to High Performance Plasmas on DIII-D by Porkolab, Miklos, Pinsker, R. I., Luce, T. C., Politzer, P. A., Goulding, R. H., Hanson, G. R., Ryan, P. M., Hosea, J. C., Nagy, A., Wilson, J. R., Maggiora, R., Milanesio, D., Zeng, L.

“…Coupling of FWs to high‐performance discharges is limited by low antenna loading in these regimes. To extend the application of high‐power FWs to such regimes, methods of increasing the antenna loading in these regimes are needed. …”
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Measurements of ion cyclotron range of frequencies mode converted wave intensity with phase contrast imaging in Alcator C-Mod and comparison with full-wave simulations by Jaeger, E. F., Green, D. L., Harvey, R. W., Tsujii, Naoto, Porkolab, Miklos, Bonoli, Paul T., Lin, Yijun, Wright, John C., Wukitch, Stephen James

“…The discrepancy was reduced in the hydrogen minority heating regime, where mode conversion is weaker.…”
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Overview of physics studies on ASDEX Upgrade by Creely, Alexander James, Freethy, Simon, White, A.E., AUG Team, EUROfusion MST1 Team

“…As type-I ELMs (even mitigated) are likely not a viable operational regime in DEMO studies of 'natural' no ELM regimes have been extended. …”
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Quantitative comparisons of electron-scale turbulence measurements in NSTX via synthetic diagnostics for high- k scattering by Ruiz Ruiz, J, Guttenfelder, W, White, AE, Howard, NT, Candy, J, Ren, Y, Smith, DR, Holland, C

“…A highly unstable electron temperature gradient (ETG) mode regime in a modest-β NSTX NBI-heated H-mode discharge is chosen for the analysis. …”
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Experimental validation of low-Z ion-stopping formalisms around the Bragg peak in high-energy-density plasmas by Frenje, Johan A, Florido, R., Mancini, R., Nagayama, T., Grabowski, P. E., Rinderknecht, H., Sio, H., Zylstra, A., Gatu Johnson, Maria, Li, Chikang, Seguin, Fredrick Hampton, Petrasso, Richard D., Glebov, V. Yu, Regan, S. P., Frenje, J. A.

“…We report on the first accurate validation of low-Z ion-stopping formalisms in the regime ranging from low-velocity ion stopping—through the Bragg peak—to high-velocity ion stopping in well-characterized high-energy-density plasmas. …”
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Pressure-driven, resistive magnetohydrodynamic interchange instabilities in laser-produced high-energy-density plasmas by Li, Chikang, Frenje, Johan A., Petrasso, Richard D., Seguin, Fredrick Hampton, Amendt, P. A., Landen, O. L., Town, R. P. J., Betti, R., Meyerhofer, D. D., Soures, J. M.

“…For laser-generated plasmas presented herein, a mode-number cutoff for stabilization of perturbations with m>∼[8πβ(1+D[subscript m]k⊥(2)γmax(−1))](1/2) is found in the linear growth regime. The growth is measured and is found to be in reasonable agreement with model predictions.…”
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Rotation Reversal Bifurcation and Energy Confinement Saturation in Tokamak Ohmic L-Mode Plasmas by Rice, John E., Cziegler, Istvan, Diamond, P. H., Duval, B. P., Podpaly, Yuri A., Reinke, Matthew Logan, Ennever, Paul Chappell, Greenwald, Martin J., Hughes, Jerry W., Ma, Y., Marmar, Earl S., Porkolab, Miklos, Tsujii, Naoto, Wolfe, Stephen M.

“…There is a strong correlation between the reversal density and the density at which the Ohmic L-mode energy confinement changes from the linear to the saturated regime.…”
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Constraining the divertor heat width in ITER by Whyte, Dennis G., Labombard, Brian, Hughes, Jerry W., Jr., Lipschultz, Bruce, Terry, James L., Brunner, Daniel Frederic, Stangeby, P. C., Elder, D., Leonard, A. W., Watkins, J.

“…Applying this model indicates a constraint that the allowed λr ∼ 10–30 mm for ITER if the divertor is in the high-recycling regime as expected (T < 20 eV) while a λr ∼ 1–3 mm requires a separatrix pressure approximately equal to the top pedestal pressure in violation of physical reasoning and the concept of a pedestal. …”
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Edge turbulence measurements in L-mode and I-mode at ASDEX Upgrade by Bielajew, R, Conway, GD, Griener, M, Happel, T, Höfler, K, Howard, NT, Hubbard, AE, McCarthy, W, Molina Cabrera, PA, Nishizawa, T, Rodriguez-Fernandez, P, Silvagni, D, Vanovac, B, Wendler, D, Yoo, C, White, AE

“…<jats:p> The I-mode confinement regime is promising for future reactor operation due to high energy confinement without high particle confinement. …”
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