Recent progress in fast-ion diagnostics for magnetically confined plasmas

D Moseev, M Salewski, M Garcia-Muñoz… - Reviews of Modern …, 2018 - Springer
On the road to a fusion reactor, a thorough control of the fast-ion distribution plays a crucial
role. Fusion-born α α-particles are, indeed, a necessary ingredient of self-sustained burning …

Progress in modelling fast-ion D-alpha spectra and neutral particle analyzer fluxes using FIDASIM

B Geiger, L Stagner, WW Heidbrink… - Plasma Physics and …, 2020 - iopscience.iop.org
FIDASIM is a code that models signals produced by charge-exchange reactions between
neutrals and ions (both fast and thermal) in magnetically confined plasmas. With the ion …

Velocity-space sensitivity and inversions of synthetic ion cyclotron emission

BS Schmidt, M Salewski, BCG Reman, RO Dendy… - Physics of …, 2023 - pubs.aip.org
This paper introduces a new model to find the velocity-space location of energetic ions
generating ion cyclotron emission (ICE) in plasmas. ICE is thought to be generated due to …

MeV-range velocity-space tomography from gamma-ray and neutron emission spectrometry measurements at JET

M Salewski, M Nocente, AS Jacobsen, F Binda… - Nuclear …, 2017 - iopscience.iop.org
We demonstrate the measurement of a 2D MeV-range ion velocity distribution function by
velocity-space tomography at JET. Deuterium ions were accelerated into the MeV-range by …

Velocity-space sensitivity and tomography of scintillator-based fast-ion loss detectors

J Galdon-Quiroga, M Garcia-Munoz… - Plasma Physics and …, 2018 - iopscience.iop.org
A simple model for the instrument function of scintillator-based fast-ion loss detectors (FILD)
has been developed which accounts for the orbit trajectories in the 3D detector geometry …

Enhancement of the FIDA diagnostic at ASDEX Upgrade for velocity space tomography

M Weiland, B Geiger, AS Jacobsen… - Plasma Physics and …, 2016 - iopscience.iop.org
Recent upgrades to the FIDA (fast-ion D-alpha) diagnostic at ASDEX Upgrade are
discussed. The diagnostic has been extended from three to five line of sight arrays with …

High-definition velocity-space tomography of fast-ion dynamics

M Salewski, B Geiger, AS Jacobsen, PC Hansen… - Nuclear …, 2016 - iopscience.iop.org
Velocity-space tomography of the fast-ion distribution function in a fusion plasma is usually a
photon-starved tomography method due to limited optical access and signal-to-noise ratio of …

Velocity-space observation regions of high-resolution two-step reaction gamma-ray spectroscopy

M Salewski, M Nocente, G Gorini, AS Jacobsen… - Nuclear …, 2015 - iopscience.iop.org
High-resolution γ-ray spectroscopy (GRS) measurements resolve spectral shapes of
Doppler-broadened γ-rays. We calculate weight functions describing velocity-space …

Phase-space resolved measurement of 2nd harmonic ion cyclotron heating using FIDA tomography at the ASDEX Upgrade tokamak

M Weiland, R Bilato, B Geiger, PA Schneider… - Nuclear …, 2017 - iopscience.iop.org
Recent upgrades to the FIDA (fast-ion D-alpha) diagnostic at ASDEX Upgrade allow to
reconstruct the fast-ion phase space at several radial positions with decent energy and pitch …

Fast-ion orbit sensitivity of neutron and gamma-ray diagnostics for one-step fusion reactions

H Järleblad, L Stagner, M Salewski, J Eriksson… - Nuclear …, 2022 - iopscience.iop.org
Fast ions in the MeV-range can be diagnosed by neutron emission spectroscopy (NES) and
gamma-ray spectroscopy (GRS). In this work, we present orbit weight functions for one-step …