19th European Fusion Theory Conference

Session

ORAL SESSION

12 Oct 2021, 11:40

Virtual in Consorzio RFX

65. Magnetic flux pumping in the hybrid tokamak scenario: Theory, simulations and experimental validation

Isabel Krebs (DIFFER, Netherlands)

12/10/2021, 11:40

8. Experimental validation of theoretical models and diagnostics development

Invited

The hybrid tokamak scenario is characterized by low magnetic shear in the plasma core and a central value of the safety factor close to unity. It represents a hybrid between standard scenarios and advanced scenarios and is a candidate scenario for ITER and DEMO. The hybrid scenario allows for high-performance, sawtooth-free operation with extended discharge lengths and has the advantage that...

4. Non-conservation of the magnetic moment with fast ions in spherical tokamaks

Fabio Sattin (Consorzio RFX)

12/10/2021, 12:10

1. Fusion devices: tokamaks, stellarators, reversed-field pinches, laser-induced ignition and new concepts

Oral

The trajectories of collisionless charged particles in static magnetic fields are Hamiltonian flows, hence may be understood using tools of Hamiltonian dynamics. In the presence of three independent constants of the motion, it is known that a trajectory is regular. A low-energy particle in an axis-symmetric device possesses two exact constants of motion: the total energy and the momentum along...

38. Action-Angle formulation of the Guiding Center Kinetic Theory and Orbital Spectrum Analysis of Particle Energy and Momentum Transport

Yannis Kominis (National Technical University of Athens)

12/10/2021, 12:30

3. Plasma confinement, neoclassical and turbulent plasma transport

Oral

The Guiding Center (GC) theory has been widely used for more than four decades as the basis for the study of single and collective particle dynamics in toroidal magnetic fields utilized in fusion devices. The Hamiltonian formulation of the theory has been originally given in terms of non-canonical variables and then extended to canonical ones. The canonical Hamiltonian description, apart from...