First intrashot observation of runaway-electron-driven instabilities at the lower-hybrid frequency range under ITER-relevant plasma-wave dispersion conditions
Kinetic instabilities driven by runaway electrons (REs) have recently received attention in the
fusion community as a means to control and diagnose REs in a tokamak. Experiments …
fusion community as a means to control and diagnose REs in a tokamak. Experiments …
Resonant interaction between runaway electrons and the toroidal magnetic field ripple in TCV
TA Wijkamp, M Hoppe, J Decker, BP Duval… - Nuclear …, 2023 - iopscience.iop.org
This work explains the anomalously high runaway electron (RE) pitch angles inferred in the
flat-top of dedicated Tokamak à Configuration Variable (TCV) experiments. Kinetic …
flat-top of dedicated Tokamak à Configuration Variable (TCV) experiments. Kinetic …
[HTML][HTML] SPARC x-ray diagnostics: Technical and functional overview
An overview is given of SPARC's three main x-ray diagnostics, with a focus on the functions
they fulfill with respect to tokamak operation. The first is an in-vessel soft x-ray tomography …
they fulfill with respect to tokamak operation. The first is an in-vessel soft x-ray tomography …
Kinetic modelling of start-up runaway electrons in KSTAR and ITER
Y Lee, PC de Vries, P Aleynikov, J Lee, YS Lee… - Nuclear …, 2023 - iopscience.iop.org
Understanding the formation of start-up runaway electrons (REs) is essential to ensure
successful plasma initiation in ITER. The design of ITER start-up scenarios requires not only …
successful plasma initiation in ITER. The design of ITER start-up scenarios requires not only …
Optimal Conditions for the Generation of Runaway Electrons in High-Pressure Gases
A Kozyrev, V Tarasenko - Plasma, 2024 - mdpi.com
Runaway electron (RAE) generation in high-pressure gases is an important physical
phenomenon that significantly influences discharge shapes and properties of initiated …
phenomenon that significantly influences discharge shapes and properties of initiated …
First numerical analysis of runaway electron generation in tungsten-rich plasmas towards ITER
The disruption and runaway electron analysis model code was extended to include tungsten
impurities in disruption simulations with the aim of studying the runaway electron (RE) …
impurities in disruption simulations with the aim of studying the runaway electron (RE) …
Binary Nature of Collisions Facilitates Runaway Electron Generation in Weakly Ionized Plasmas
Y Lee, P Aleynikov, PC De Vries, HT Kim, J Lee… - Physical Review Letters, 2024 - APS
Dreicer generation is one of the main mechanisms of runaway electron generation in weakly
ionized plasmas. It is often described as a diffusive flow from the Maxwellian core into high …
ionized plasmas. It is often described as a diffusive flow from the Maxwellian core into high …
Modelling of ohmic startup and runaway electron formation in support of JT-60SA initial operation
A Matsuyama, T Wakatsuki, S Inoue… - Nuclear …, 2022 - iopscience.iop.org
The plasma startup with ITER-relevant sub-mPa neutral pressures in the JT-60SA
superconducting tokamak is studied using a zero-dimensional (0D) power balance model …
superconducting tokamak is studied using a zero-dimensional (0D) power balance model …
[HTML][HTML] Synthetic measurements of runaway electron synchrotron emission in the SPARC tokamak
RA Tinguely, AM Rosenthal, M Silva Sa… - Review of Scientific …, 2024 - pubs.aip.org
With plasma currents up to 8.7 MA, the SPARC tokamak runs the risk of forming multi-MA
beams of relativistic “runaway” electrons (REs), which could damage plasma facing …
beams of relativistic “runaway” electrons (REs), which could damage plasma facing …
Measurement of electromagnetic waves from runaway electrons
Electromagnetic waves emitted during a tokamak discharge can be partially ascribed to
coupling with plasma waves. In particular, in the presence of runaway electrons, the …
coupling with plasma waves. In particular, in the presence of runaway electrons, the …