W.G.F. Core

TL;DR: In this article, the toroidal angular momentum in the plasma centre, where fast ions are injected into passing orbits, and the thermal energy are found to rise on the slowing down time-scale of the fast ions.

TL;DR: The first experimental results of anisotropic slowing-down features observed in JET helium beam fuelling experiments are reported in this paper, where two independent observation ports, one with a view perpendicular to the magnetic field in the centre of the plasma and a second multichord viewing arrangement, approximately tangential to the toroidal field, provide radially and temporally resolved information on the velocity distribution function comprising the populations of both fast and thermalized alpha particles.

TL;DR: In this article, measurements from the JET neutron profile monitor are analyzed tomographically to deduce the 2D spatial distribution of neutron emissivity during NBI heating both before and after sawtooth crashes.

TL;DR: In the JET tokamak, ICRF driven fusion reactivity has been determined using measurements of 16.6 MeV γ-ray emission from d[3He, γ]5Li reactions during central RF heating in the (3He)d minority regime as mentioned in this paper.

TL;DR: In this paper, analytical and semi-analytical approximations for the distribution function of ions heated by ion cyclotron resonance absorption are derived, which are used to evaluate the weighted velocity space averages of the distribution, which determine the fusion reactivity and the collisional power transfer to plasma background particles, and study their scaling with RF parameters such as absorbed power and perpendicular wave number.