Search
Full bibliography 151 resources
-
High-power microwave beams used for heating and current drive in magnetically confined fusion plasmas can be broadened significantly by plasma turbulence, negatively impacting the efficiency of the machine. The dependence of this beam broadening on plasma and beam parameters is not yet fully understood, particularly where the dependence on one parameter is not separable from the dependence on...
-
The properties of the edge ion-scale turbulence are studied using the beam emission spectroscopy (BES) diagnostic on MAST. Evidence of the formation of large-scale high-amplitude coherent structures, filamentary density blobs and holes, 2-4 cm inside the plasma separatrix is presented. Measurements of radial velocity and skewness of the density fluctuations indicate that density holes...
-
The first pedestal stability and structure analysis on the new MAST Upgrade (MAST-U) spherical tokamak H-mode plasmas is presented. Our results indicate that MAST-U pedestals are close to the low toroidal mode number (n) peeling branch of the peeling-ballooning instability, in contrast with MAST H-mode pedestals which were deeply in the high-n ballooning branch. This offers the possibility of...
-
The properties of supersonic, compressible plasma turbulence determine the behavior of many terrestrial and astrophysical systems. In the interstellar medium and molecular clouds, compressible turbulence plays a vital role in star formation and the evolution of our galaxy. Observations of the density and velocity power spectra in the Orion B and Perseus molecular clouds show large deviations...
-
Linear perturbation theory is used to model the ideal magnetohydrodynamic stability of tokamak equilibria under the application of external 3D magnetic perturbations (Hegna 2014 Phys. Plasmas 21 072502). We use the ELITE code (Wilson et al 2002 Phys. Plasmas 9 1277) to produce both a linear plasma response, as well as the linear axisymmetric toroidal eigenmodes which are used as basis...
-
The high heat fluxes to the divertor during edge localised mode (ELM) instabilities have to be reduced for a sustainable future tokamak reactor. A solution to reduce the heat fluxes could be the Super-X divertor, which will be tested on MAST-U. ELM simulations for MAST-U Super-X tokamak plasmas have been obtained, using JOREK. A factor 10 decrease in the peak heat flux to the outer target and...
-
The poloidal harmonics of the toroidal normal modes of an unstable axisymmetric tokamak plasma are employed as basis functions for the minimisation of the 3D energy functional. This approach presents a natural extension of the perturbative method considered in Anastopoulos Tzaniset al(2019Nucl. Fusion59126028). This variational formulation is applied to the stability of tokamak plasmas subject...
-
Ion-gyroradius-scale microinstabilities typically have a frequency comparable to the ion transit frequency. Due to the small electron-to-ion mass ratio and the large electron transit frequency, it is conventionally assumed that passing electrons respond adiabatically in ion-gyroradius-scale modes. However, in gyrokinetic simulations of ion-gyroradius-scale modes in axisymmetric toroidal...
-
Nonlinear multiscale gyrokinetic simulations of a Joint European Torus edge pedestal are used to show that electron-temperature-gradient (ETG) turbulence has a rich three-dimensional structure, varying strongly according to the local magnetic-field configuration. In the plane normal to the magnetic field, the steep pedestal electron temperature gradient gives rise to anisotropic turbulence...
-
A new quasilinear saturation model SAT3 has been developed for the purpose of calculating radial turbulent fluxes in the core of tokamak plasmas. The new model is shown to be able to better recreate the isotope mass dependence of nonlinear gyrokinetic fluxes compared to contemporary quasilinear models, including SAT2 (Staebler et al 2021 Nucl. Fusion 61 116007), while performing at least as...
-
To be economically competitive, spherical tokamak (ST) power plant designs require a high beta (plasma pressure/magnetic pressure) and sufficiently low turbulent transport to enable steady-state operation. A novel approach to tokamak optimisation is for the plasma to have negative triangularity, with experimental results indicating this reduces transport. However, negative triangularity is...
-
Supplementary data for the Plasma Physics and Controlled Fusion Publication `New linear stability parameter to describe low-β electromagnetic microinstabilities driven by passing electrons in axisymmetric toroidal geometry, M. R. Hardman, F. I. Parra, B. S. Patel, C. M. Roach, J. Ruiz Ruiz, M. Barnes, D. Dickinson, W. Dorland, J. F. Parisi, D. St-Onge, and H. Wilson'. The publication appears...
-
This dataset contains the linear simulation data used in M. Giacomin et al. "Nonlinear microtearing modes in MAST and their stochastic layer formation", Plasma Phys. Control. Fusion 2023 (DOI 10.1088/1361-6587/aceb89). Please see the README file for information on the dataset. Please cite M. Giacomin et al. "Nonlinear microtearing modes in MAST and their stochastic layer formation", Plasma...
Explore
Topic
- Plasma Turbulence & Transport (32)
- Plasma Heating & Waves (24)
- Magnetic Confinement & Tokamaks (23)
- Plasma Instabilities & MHD (23)
- Gyrokinetics & Plasma Simulations (17)
- Plasma Diagnostics & Simulations (12)
- Electromagnetic Instabilities (11)
- Space & Astrophysical Plasmas (7)
- 3D Magnetic Fields & Perturbations (5)
- Laser-Plasma Interactions & Experiments (5)
- Plasma Confinement & Stability (5)
- Edge Plasma & Divertors (5)
Outputs
- Code (10)
-
Conferences
(42)
-
Annual Meeting of the APS Division of Plasma Physics
(6)
-
61st
(3)
- Invited Talks (2)
-
63rd
(3)
- Invited Talks (1)
- Review Talks (1)
-
61st
(3)
-
EPS Conference on Plasma Physics
(2)
- 47th (1)
-
EU-US Task Force
(7)
- 25th (5)
-
27th
(1)
- Invited Talks (1)
-
28th
(1)
- Invited Talks (1)
-
European Fusion Theory
(10)
-
18th
(4)
- Invited Talks (1)
- Oral Presentations (2)
-
19th
(6)
- Invited Talks (1)
- Oral Presentations (4)
-
18th
(4)
-
IOP Annual Plasma Physics
(1)
-
49th
(1)
- Invited Talks (1)
-
49th
(1)
-
JPP Frontiers of Plasma Physics Colloquium
(4)
- Invited Talks (3)
-
Phenomena in Ionized Gases
(1)
-
XXXIV
(1)
- Invited Talks (1)
-
XXXIV
(1)
-
Plasma Physics of the European Physical Society (EPS)
(1)
-
49th
(1)
- Invited Talks (1)
-
49th
(1)
-
Sherwood Fusion Theory
(10)
- Invited Talks (3)
- Oral Presentations (5)
-
Theory of Fusion Plasmas Joint Varenna-Lausanne International
(4)
- Invited Talks (3)
-
US-EU Transport Task Force meeting
(1)
- Invited Talks (1)
-
Annual Meeting of the APS Division of Plasma Physics
(6)
- Data (6)
- Publications (88)
Related work
Tools used by TDoTP
- Code (4)
Resource type
- Conference Paper (34)
- Dataset (6)
- Journal Article (86)
- Preprint (2)
- Presentation (2)
- Software (8)
- Thesis (1)
- Web Page (12)
Publication year
- Between 2000 and 2025 (135)
- Unknown (16)
Resource language
- English (76)